ORION NETWORK SYSTEMS INC/DE/
DEFM14A, 1997-01-16
RADIO & TV BROADCASTING & COMMUNICATIONS EQUIPMENT
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                           SCHEDULE 14A INFORMATION

Proxy Statement/Prospectus Pursuant to Section 14(a) of the Securities
                             Exchange Act of 1934

Filed by the Registrant [ ]

Filed by a Party other than the Registrant [X]

Check the appropriate box:

[ ] Preliminary Proxy Statement/Prospectus

[ ] Confidential, for Use of the Commission Only (as permitted by Rule
    14a-6(c)(2))

[X] Definitive Proxy Statement/Prospectus

[ ] Definitive Additional Materials

[ ] Soliciting Material Pursuant to Section 240.14a-11(c) or
    Section 240.14a-12

                           ORION NEWCO SERVICES, INC.

                (Name of Registrant as Specified In Its Charter)

                           ORION NETWORK SYSTEMS, INC.

     (Name of Person(s) Filing Proxy Statement/Prospectus if other than the
                                   Registrant)

Payment of Filing Fee (Check the appropriate box):

[ ] $125 per Exchange Act Rules  0-11(c)(1)(ii),  14a-6(i)(1),  14a-6(i)(2),  or
    Item 22(a) of Schedule 14A.

[ ] $500 per  each  party  to the  controversy  pursuant  to  Exchange  Act Rule
    14a-6(i)(3).

[X] Fee computed on table below per Exchange Act Rules 14a-6(i)(4) and 0-11.

   1) Title of each class of securities to which transaction applies:

        (i) Common Stock, par value $.01 per share,  (ii) Series A 8% Cumulative
            Redeemable  Convertible  Preferred  Stock  and  (iii)  Series  B  8%
            Cumulative Redeemable Convertible Preferred Stock

   2) Aggregate number of securities to which transaction applies:

        (i) 11,097,758 shares of Common Stock, (ii) 13,871  shares  of  Series A
            Preferred Stock and (iii) 4,298 shares of Series B Preferred Stock

   3) Per unit price or other underlying value of transaction  computed pursuant
      to Exchange Act Rule 0-11:

        (i) $14.50 per share of Common  Stock  (average  of high and low trading
            price  on   1/9/97),  (ii)  $15,820,460   (book  value  of  Series A
            Preferred Stock as of 9/30/96) and (iii)  $4,718,526  (book value of
            Series B Preferred Stock as of 9/30/96)

   4) Proposed maximum aggregate value of transaction:
      $181,456,477

   5) Total fee paid:
      $29,346

[X] Check  box if any  part of the fee is offset as  provided  by  Exchange  Act
    Rule  0-11(a)(2)  and identify the filing for which the  offsetting  fee was
    paid  previously.  Identify the previous  filing by  registration  statement
    number, or the Form or Schedule and the date of its filing.

   1) Amount previously paid:
      $54,996
      -------------------------------------------------------------------------

   2) Form, Schedule or Registration Statement No.:
      Form S-4 Registration Statement No. 333-19795
      -------------------------------------------------------------------------

   3) Filing Party:
      Orion Newco Services, Inc.
      -------------------------------------------------------------------------

   4) Date Filed:
      January 15, 1996
      -------------------------------------------------------------------------
<PAGE>
                         ORION NETWORK SYSTEMS, INC.
                      2440 RESEARCH BOULEVARD, SUITE 400
                          ROCKVILLE, MARYLAND 20850

                               January 15, 1997

Dear Stockholder:

   You are cordially  invited to attend a special meeting of  stockholders  (the
"Special Meeting") of Orion Network Systems, Inc. ("Orion" or the "Company"), to
be held on Thursday, January 30, 1997 at 9:00 a.m., local time, at 2440 Research
Boulevard, Suite 400, Rockville, Maryland.

   As described in the accompanying Proxy  Statement/Prospectus,  at the Special
Meeting, Orion stockholders will be asked to consider and act upon the following
proposals:

   (1)   Ratification   of  the  Agreement  and  Plan  of  Merger  (the  "Merger
Agreement"),  dated as of January 8, 1997,  among Orion,  Orion Newco  Services,
Inc.,  a newly  formed  Delaware  corporation  with  no  significant  assets  or
liabilities and a wholly owned  subsidiary of Orion ("Orion  Newco"),  and Orion
Merger  Company,  Inc., a newly formed  Delaware  corporation and a wholly owned
subsidiary  of Orion Newco ("Orion  Merger  Subsidiary"),  and the  transactions
contemplated thereby.

   (2) Approval and adoption of the Section 351 Exchange  Agreement  and Plan of
Conversion (the "Exchange Agreement"),  dated as of June 1996, as amended, among
Orion, Orion Satellite Corporation,  a Delaware corporation ("OrionSat") that is
a wholly owned subsidiary of Orion and the sole general partner of International
Private  Satellite  Partners,  L.P.,  a  Delaware  limited  partnership  ("Orion
Atlantic"),  and each of the existing  limited  partners of Orion Atlantic other
than Orion (the  "Exchanging  Partners,"  and together with Orion,  the "Limited
Partners") and the transactions contemplated thereby.

   (3) Approval of the transactions (the "Debenture  Investments")  contemplated
by the Debenture  Purchase  Agreement (the "Debenture  Agreement"),  dated as of
January  13,  1997,  among  Orion,  Orion  Newco and each of  British  Aerospace
Holdings, Inc. (collectively,  with British Aerospace Public Limited Company and
its affiliates,  "British Aerospace") and Matra Marconi Space UK Limited ("Matra
Marconi Space").

The  refinancing of $210 million of existing  indebtedness  of Orion Atlantic to
release the existing  commitments of the Limited  Partners and their  affiliates
supporting such indebtedness is a condition to the Merger,  the Exchange and the
Debenture Investments, as discussed below.

   Merger.  Pursuant to the Merger  Agreement,  Orion Merger  Subsidiary will be
merged with and into Orion in a tax-free  reorganization  (the "Merger").  Orion
will be the surviving  corporation  in the Merger and will become a wholly owned
subsidiary of Orion Newco.  In the Merger,  each share of Orion's  common stock,
par  value  $.01 per share  (the  "Orion  Common  Stock"),  Orion's  Series A 8%
Cumulative Redeemable Convertible Preferred Stock (the "Orion Series A Preferred
Stock") and Series B 8% Cumulative  Redeemable  Convertible Preferred Stock (the
"Orion Series B Preferred Stock," and together with the Orion Series A Preferred
Stock, the "Orion Senior Preferred Stock") will be converted, without any action
on the part of the holder thereof,  into the right to receive one share of Orion
Newco's common stock, par value $.01 per share (the "Orion Newco Common Stock"),
Orion Newco's Series A 8% Cumulative Redeemable Convertible Preferred Stock (the
"Orion Newco Series A Preferred Stock") and Orion Newco's Series B 8% Cumulative
Redeemable  Convertible  Preferred  Stock (the "Orion  Newco  Series B Preferred
Stock," and together with the Orion Newco Series A Preferred  Stock,  the "Orion
Newco Senior Preferred Stock"),  respectively. It is expected that approximately
10,974,121  shares of Orion Newco  Common  Stock,  13,871  shares of Orion Newco
Series A  Preferred  Stock and 4,298  shares of Orion  Newco  Series B Preferred
Stock will be issued to the  stockholders of Orion in the Merger in exchange for
their shares of Orion  Common  Stock,  Orion Series A Preferred  Stock and Orion
Series B Preferred  Stock,  respectively.  Such  shares of Orion Newco  Series A
Preferred
<PAGE>
Stock and Orion Newco  Series B Preferred  Stock will be  convertible  as of the
issuance date into an aggregate of approximately 2,053,255 shares of Orion Newco
Common Stock,  or  approximately  7.9% of the shares of Orion Newco Common Stock
outstanding  on a fully  diluted  basis,  assuming a closing of the Merger as of
January 30, 1997.

   Orion Newco will have,  after the Merger,  a  certificate  of  incorporation,
bylaws,  management  and capital  structure  (before the issuance of Orion Newco
Series  C  Preferred  Stock  described  below)  substantially  identical  in all
material respects to those of Orion. As a result of the Merger,  (i) Orion Newco
will become a public  holding  company owning all of the capital stock of Orion,
which will continue its business and  operations,  and (ii) the  stockholders of
Orion  Newco will have  substantially  the same  securities  and rights in Orion
Newco that they had in Orion,  except that their  percentage  ownership of Orion
Newco will be diluted as a result of the Exchange (as defined  below).  Approval
of the Merger  Agreement also will constitute the approval of the specific terms
therein and the  transactions  contemplated  thereunder,  including  the Merger.
Prior to voting on the Merger,  Orion  stockholders  should review carefully the
Merger  Agreement,  a copy  of  which  is  attached  to the  accompanying  Proxy
Statement/Prospectus as Attachment A.

   Exchange.  Pursuant to the Exchange Agreement,  Orion has agreed, among other
things, to have Orion Newco issue shares of Orion Newco's Series C 6% Cumulative
Redeemable  Convertible  Preferred  Stock (the "Orion  Newco  Series C Preferred
Stock") for the  Exchanging  Partners'  limited  partnership  interests in Orion
Atlantic and other rights relating thereto (the "Exchange" and together with the
Merger, the "Merger Transactions").  As a result of the Exchange,  which will be
consummated  concurrently with the Merger,  Orion Newco will become the owner of
all the partnership  interests in Orion Atlantic  (through Orion Newco and Orion
as the sole limited  partners and OrionSat as the sole general  partner of Orion
Atlantic).  In addition,  Orion Newco will acquire certain rights currently held
by the Exchanging Partners, including the Exchanging Partners' rights to receive
repayment  of  various  advances  (aggregating  approximately  $37.5  million at
September 30, 1996) made to Orion  Atlantic.  The 121,988  shares of Orion Newco
Series  C  Preferred  Stock  expected  to be  issued  in the  Exchange  will  be
convertible as of the issuance date into approximately 6,970,740 shares of Orion
Newco Common  Stock,  or  approximately  27% of the shares of Orion Newco Common
Stock  outstanding  on a fully diluted  basis,  assuming a closing of the Merger
Transactions  as of January 30, 1997 (the number of shares could increase if the
closing  occurs after that date).  As a result of the  Exchange,  certain of the
Exchanging  Partners  will be principal  stockholders  of Orion Newco.  Prior to
voting on the Exchange,  Orion stockholders should review carefully the Exchange
Agreement,   a  copy  of   which  is   attached   to  the   accompanying   Proxy
Statement/Prospectus as Attachment B.

   Debenture Investments.  Pursuant to the Debenture Agreement,  Orion Newco has
agreed,  among other  things,  to issue to British  Aerospace  and Matra Marconi
Space  $50  million  and  $10  million,   respectively,  of  convertible  junior
subordinated debentures (the "Debentures").  The Debentures will mature 15 years
following the date of issuance and will bear interest at rate of 8.75% per annum
to be paid semi-annually in arrears solely in Orion Newco Common Stock at prices
of between  $10.21 and $14.00 per share.  The Debentures to be issued to British
Aerospace and Matra Marconi  Space will be  convertible  as of the issuance date
into  approximately  3,571,429  and 714,286  shares of Orion Newco Common Stock,
respectively,  or  approximately  13.8% and 2.8% of the  shares  of Orion  Newco
Common Stock  outstanding  on a fully diluted  basis,  assuming a closing of the
Debenture  Investments  as of January  30,  1997.  As a result of the  Debenture
Investments  (and the  other  transactions,  including  the  Exchange,  in which
British  Aerospace  and an  affiliate  of  Matra  Marconi  Space  are  acquiring
securities of Orion Newco), British Aerospace will be the largest stockholder of
Orion Newco on both an actual and a fully  diluted basis and Matra Marconi Space
will be one of the principal  stockholders of Orion Newco.  The  consummation of
the Debenture Investments is a condition to the Exchange.

   Reasons for Merger Transactions and Debenture Investments.  Orion's principal
objective  for the Merger  Transactions  is to simplify  Orion's  organizational
structure and improve its access to the capital markets. Orion believes that the
Merger  Transactions  will  enable  it  to:  (i)  consolidate  outside  investor
ownership at the Orion Newco level, (ii) improve the speed and efficiency of its
decision  making,  (iii) provide  Orion Newco with 100%  ownership of all of its
material subsidiaries, (iv) allow Orion
<PAGE>
Newco to pursue  independently  its business plans and financings for all of its
satellites,  (v)  eliminate  (in exchange  for Orion Newco stock)  approximately
$37.5 million of obligations Orion Atlantic owes to the Exchanging  Partners and
(vi) increase Orion's overall market  capitalization.  Orion's  principal reason
for the issuance of $50 million of Debentures  to British  Aerospace is to raise
additional  capital for initial  payments with respect to the Orion 2 satellite,
of which  approximately  $49.4 million of payments are due during 1997. The sale
of $10 million of Debentures to Matra Marconi Space will involve a re-investment
by Matra Marconi Space of $10 million of the $13 million of satellite  incentive
payments  Matra  Marconi  Space  will  receive  as  manufacturer  of the Orion 1
satellite upon consummation of the Notes Offering described below.

   Access to the capital  markets is necessary for Orion to achieve its business
plan to construct and launch two additional  satellites,  Orion 2 (with coverage
of Europe,  Russia,  the eastern  United  States and Latin  America) and Orion 3
(with coverage of the Asia Pacific  region).  With this plan in mind,  Orion and
Orion  Newco  have been  pursuing  and will  continue  to pursue  the  following
transactions:

       (i) Notes Offering:  a financing  consisting of units of senior notes and
    common stock warrants (the "Notes  Offering") in the amount of approximately
    $347 million with expected  gross  proceeds of  approximately  $275 million,
    excluding  approximately  $72 million of overfunding of interest due on such
    notes.  The  principal  purpose of the Notes  Offering is to  refinance  the
    indebtedness  of  Orion  Atlantic  outstanding  under  the  existing  Credit
    Agreement (together with any related documents and agreements,  the "Orion 1
    Credit  Facility")  dated December 6, 1991 among Orion  Atlantic,  the Banks
    named therein and Chase Manhattan Bank (National Association), as Agent, and
    release  the  existing   commitments  of  the  Limited  Partners  and  their
    affiliates  under  the  Communication  Satellite  Capacity  Agreements,  the
    Contingent   Communications   Satellite  Capacity   Agreements  and  various
    guarantees or other commitments supporting the Orion 1 Credit Facility. Such
    release is a condition to the Exchange.

       (ii) Orion 2 Construction Contract: a satellite procurement contract with
    Matra Marconi Space for Orion 2, under which the  manufacturer is to proceed
    with  construction  based upon  initial  payments of $25 million and further
    payments through December 1997 limited to approximately  $25 million.  Orion
    expects  to  commence  the  construction  of Orion 2  immediately  following
    completion of the Notes Offering.

       (iii) Orion 3 Construction  Contract:  a satellite  procurement  contract
    with Hughes Space and Communications International,  Inc. for Orion 3, under
    which the  manufacturer is to proceed with  construction  based upon initial
    payments through January 31, 1997 of approximately $15 million, with further
    payments  through  March 31, 1998 being  limited to $35 million,  payable in
    approximately equal quarterly installments.  The majority of the amounts due
    under the  contract  are  payable in the second and third  quarters of 1998.
    Orion  commenced  construction  of  Orion 3 in  mid-December  1996  under an
    authorization to proceed,  and expects to enter into a definitive  satellite
    contract in January 1997.

   In addition to the Merger, the Notes Offering and the Debenture  Investments,
the Exchange is indirectly  conditioned on, among other things,  the acquisition
by Orion of the only  outstanding  minority  interest in Asia Pacific  Space and
Communications,  Ltd. from British Aerospace for approximately  86,000 shares of
Orion Common Stock,  which has occurred or is in the process of  occurring.  See
information  under the  captions  "Pro Forma  Condensed  Consolidated  Financial
Statements"  and "The  Merger,  the Exchange and the  Debenture  Investments  --
Reasons  for the  Merger  Transactions  and the  Debenture  Investments"  in the
accompanying Proxy Statement/Prospectus.

   The accompanying Proxy  Statement/Prospectus  provides a detailed description
of the Merger  Transactions  and the Debenture  Investments,  including  Orion's
reasons for entering into the Merger Transactions and the Debenture  Investments
and  the  effect  of the  transactions  on  Orion  and  Orion  Newco  and  their
stockholders,  and of the  business and  financial  condition of Orion and Orion
Newco. I urge you to read the accompanying Proxy Statement/Prospectus carefully.

   The matters to be  considered  and voted upon at the  Special  Meeting are of
great  importance  to your  investment  and the  future of Orion.  Your Board of
Directors has carefully  reviewed and considered the terms and conditions of the
Merger Transactions and the Debenture Investments and recom-
<PAGE>
mended  unanimously  (with the British Aerospace Board  representative  recusing
himself) that stockholders vote for ratification of the Merger Agreement and the
transactions  contemplated  thereby,  for  approval and adoption of the Exchange
Agreement and the  transactions  contemplated  thereby,  and for approval of the
Debenture Investments.  Your Board of Directors also has received the opinion of
its  financial   advisor,   Salomon   Brothers  Inc,  to  the  effect  that  the
consideration to be paid by Orion in connection with the Exchange is fair from a
financial  point of view to Orion.  A copy of that  opinion is  attached  to the
accompanying Proxy Statement/Prospectus as Attachment D.

   Each  proposal to be  considered  at the Special  Meeting  will be voted upon
separately by the Orion stockholders. However, failure by the Orion stockholders
to approve  the  Exchange  Agreement  will result in  termination  of the Merger
Agreement  by Orion,  Orion Newco and Orion Merger  Subsidiary.  The Merger is a
condition to the Exchange and is being proposed to enable the Exchange to occur.
If the Merger were to cease to be necessary to consummate the Exchange (which is
not expected to occur), the Board of Directors would cause Orion to proceed with
the Exchange but not the Merger.  In such event,  Orion (instead of Orion Newco)
would issue shares of Series C 6% Cumulative  Redeemable  Convertible  Preferred
Stock  for the  Exchanging  Partners'  limited  partnership  interests  in Orion
Atlantic and other rights  relating  thereto and Orion  (instead of Orion Newco)
would issue the Debentures,  but all other aspects of these  transactions  would
remain  the  same.  Since the  rights of  stockholders  of Orion  Newco  will be
substantially  the same as the rights of stockholders  of Orion,  Orion believes
that  consummation  of the Exchange  would have the same effect on  stockholders
whether or not the Merger occurs.  The Merger and the Exchange are conditions to
the Debenture  Investments,  and waivers of these conditions are not expected to
occur.  Repayment of the Orion 1 Credit  Facility is a condition to the Exchange
and the Debenture Investments, and this condition is not expected to be waived.

   Regardless of your plans for attending in person,  it is important  that your
shares be represented  and voted at the Special  Meeting.  Accordingly,  you are
requested to  complete,  sign,  date and return the  enclosed  proxy card in the
enclosed  postage  paid  envelope.  Signing this proxy will not prevent you from
voting in person  should you be able to attend  the  Special  Meeting,  but will
assure that your vote is counted if, for any reason, you are unable to attend.

   We hope  that you can  attend  the  Special  Meeting  of  Stockholders.  Your
interest  and  support  in the  affairs  of  Orion  Network  Systems,  Inc.  are
appreciated. Sincerely,



                                        W. NEIL BAUER
                                        President and Chief Executive Officer

Rockville, Maryland
January 15, 1997
<PAGE>
                         ORION NETWORK SYSTEMS, INC.
                      2440 RESEARCH BOULEVARD, SUITE 400
                          ROCKVILLE, MARYLAND 20850
                                (301) 258-8101

                  NOTICE OF SPECIAL MEETING OF STOCKHOLDERS
                        TO BE HELD ON JANUARY 30, 1997

   NOTICE IS HEREBY GIVEN that a special meeting of  stockholders  (the "Special
Meeting") of Orion Network  Systems,  Inc.  ("Orion")  will be held on Thursday,
January 30, 1997 at 9:00 a.m.,  local time,  at 2440 Research  Boulevard,  Suite
400, Rockville, Maryland, to consider and act upon the following proposals:

       1.  Ratification  of the  Agreement  and  Plan  of  Merger  (the  "Merger
    Agreement"), dated as of January 8, 1997, among Orion, Orion Newco Services,
    Inc., a newly formed  Delaware  corporation  with no  significant  assets or
    liabilities  and a wholly owned  subsidiary  of Orion ("Orion  Newco"),  and
    Orion Merger Company, Inc., a newly formed Delaware corporation and a wholly
    owned  subsidiary  of  Orion  Newco  ("Orion  Merger  Subsidiary"),  and the
    transactions contemplated thereby.  Pursuant to the Merger Agreement,  which
    was  entered  into by Orion under  Section  251(g) of the  Delaware  General
    Corporation Law, Orion Merger  Subsidiary will be merged with and into Orion
    (the "Merger"),  Orion will become a wholly owned  subsidiary of Orion Newco
    and  each  share  of Orion  capital  stock  issued  and  outstanding  at the
    effective time of the Merger will be converted into the right to receive one
    share of substantially identical Orion Newco capital stock.

       2.  Approval and adoption of the Section 351 Exchange  Agreement and Plan
    of Conversion (the "Exchange Agreement"), dated as of June 1996, as amended,
    among Orion, Orion Satellite  Corporation,  a Delaware corporation that is a
    wholly  owned   subsidiary  of  Orion  and  the  sole  general   partner  of
    International   Private  Satellite   Partners,   L.P.,  a  Delaware  limited
    partnership ("Orion Atlantic"), and each of the existing limited partners of
    Orion  Atlantic  other  than  Orion  (the  "Exchanging  Partners"),  and the
    transactions contemplated thereby. Pursuant to the Exchange Agreement, Orion
    Newco will issue shares of Orion Newco's  Series C 6% Cumulative  Redeemable
    Convertible Preferred Stock for the Exchanging Partners' limited partnership
    interests  in  Orion  Atlantic  and  other  rights  relating   thereto  (the
    "Exchange").

       3.   Approval  of  the   transactions   (the   "Debenture   Investments")
    contemplated   by  the  Debenture   Purchase   Agreement   (the   "Debenture
    Agreement"), dated as of January 13, 1997, among Orion, Orion Newco and each
    of British Aerospace Holdings,  Inc.  (collectively,  with British Aerospace
    Public Limited  Company and its affiliates,  "British  Aerospace") and Matra
    Marconi Space UK Limited ("Matra Marconi Space").  Pursuant to the Debenture
    Agreement,  Orion Newco will issue to British  Aerospace  and Matra  Marconi
    Space $50 million  and $10  million,  respectively,  of  convertible  junior
    subordinated   debentures,   convertible   as  of  the  issuance  date  into
    approximately  3,571,429  and 714,286  shares of Orion Newco  common  stock,
    respectively,  assuming a closing of the Debenture Investments as of January
    30, 1997.

       4.  Transaction  of such other  business as may properly  come before the
    Special Meeting or any adjournments or postponement thereof.

   The Board of  Directors  has  carefully  considered  the terms of the  Merger
Agreement, the Exchange Agreement and the Debenture Agreement and the respective
transactions  contemplated  thereby,  and believes that the Merger, the Exchange
and the  Debenture  Investments  are in the  best  interests  of  Orion  and its
stockholders.  The Board of Directors has unanimously approved (with the British
Aerospace Board representative  recusing himself) the matters being submitted by
Orion for  stockholder  approval  or  ratification  at the  Special  Meeting and
recommended that  stockholders vote FOR ratification of the Merger Agreement and
the transactions contemplated thereby, FOR approval and adoption of the
<PAGE>
   
Exchange Agreement and the transactions  contemplated  thereby, and FOR approval
of the Debenture Investments. Orion anticipates that all members of the Board of
Directors who are Orion  stockholders and companies they represent (who held, in
the  aggregate,  approximately  38% of Orion's  voting stock  outstanding  as of
September  30, 1996) will enter into written  agreements to vote for each of the
foregoing proposals to be considered at the Special Meeting.     

   The Board of  Directors  has fixed the close of business on December 23, 1996
as the record date for the  determination of stockholders  entitled to notice of
and to vote at the Special Meeting. Only holders of Orion common stock and Orion
preferred stock of record at the close of business on that date will be entitled
to notice of and to vote at the  Special  Meeting  or any  adjournment  thereof,
unless a new record date is fixed for any adjourned  meeting.  A list of Orion's
stockholders  entitled  to  vote  at the  Special  Meeting  will  be open to the
examination of any stockholder  for any purposes  germane to the Special Meeting
during  ordinary  business  hours for a period of ten days  before  the  Special
Meeting at Orion's offices.

   
                                 By Order of the Board of Directors,



                                 RICHARD H. SHAY
                                 Secretary
    
Rockville, Maryland
January 15, 1997

   IT IS IMPORTANT THAT PROXIES BE RETURNED PROMPTLY.  THEREFORE, WHETHER OR NOT
YOU PLAN TO ATTEND THE SPECIAL MEETING,  PLEASE COMPLETE,  DATE, SIGN AND RETURN
THE ENCLOSED PROXY CARD IN THE ENCLOSED  ENVELOPE,  WHICH REQUIRES NO POSTAGE IF
MAILED IN THE UNITED STATES. YOU MAY, IF YOU WISH, REVOKE YOUR PROXY AT ANY TIME
PRIOR TO THE TIME IT IS VOTED.
<PAGE>
                              TABLE OF CONTENTS OF
                  ORION NETWORK SYSTEMS, INC. PROXY STATEMENT/
                      ORION NEWCO SERVICES, INC. PROSEPCTUS

<TABLE>
<CAPTION>
                                                                                                                    PAGE
                                                                                                                    ----
<S>                                                                                                                  <C>
AVAILABLE INFORMATION..............................................................................................   6
SUMMARY............................................................................................................   7
RISK FACTORS.......................................................................................................  20
 Risks Relating to Merger, Exchange and Debenture Investments......................................................  20
  Merger, Exchange and Debenture Investments Dependent on Orion 1 Credit Facility Refinancing......................  20
  Certain Terms of Notes Offering Not Yet Determined...............................................................  20
  Risks in Implementation of Merger, Exchange and Debenture Investments............................................  20
  Substantial Change in Ownership of Stock.........................................................................  21
  Risks Relating to Holding Company Structure......................................................................  21
  Risks Relating to Orion Newco Series C Preferred Stock and Debentures............................................  21
 Risks Relating to Orion's Business................................................................................  22
  Limited Operations; History of Losses and Negative EBITDA; Expectation of Future Losses..........................  22
  Need for Substantial Additional Capital..........................................................................  22
  Substantial Leverage; Secured Indebtedness.......................................................................  23
   
  Risks of Satellite Loss or Reduced Performance...................................................................  24
  Launch of Orion 2 and Orion 3 Subject to Significant Uncertainties...............................................  25
  Risks Relating to Potential Lack of Market Acceptance and Demand; Ground Operations..............................  26
    
  Risks Concerning Ability to Manage Growth........................................................................  26
  Potential Adverse Effects of Competition.........................................................................  26
  Approvals Needed; Regulation of Industry.........................................................................  27
  Uncertainties Relating to Backlog................................................................................  28
  Technological Changes............................................................................................  29
  Risks of Conducting International Business.......................................................................  29
  Dependence of Orion on Key Personnel.............................................................................  29
 Risks Relating to Capital Stock ..................................................................................  29
  Control of Orion Newco by Principal Stockholders.................................................................  29
  Risks Relating to Orion Senior Preferred Stock...................................................................  29
  Limitations on Dividends on Orion and Orion Newco Common Stock...................................................  30
  Potential Adverse Effect of Shares Eligible for Future Sale......................................................  30
   
  Anti-Takeover and Other Provisions of the Certificate of Incorporation...........................................  31
    
THE SPECIAL MEETING................................................................................................  32
 Introduction......................................................................................................  32
 Voting Rights and Related Matters.................................................................................  32
 Votes Required....................................................................................................  32
 No Dissenters' Rights.............................................................................................  33
 Proxies...........................................................................................................  33
THE MERGER, THE EXCHANGE AND THE DEBENTURE INVESTMENTS.............................................................  34
 Background of the Merger Transactions and the Debenture Investments...............................................  34
 Reasons for the Merger Transactions and the Debenture Investments.................................................  37
 The Merger Agreement..............................................................................................  38
 The Exchange Agreement............................................................................................  40
 Description of the Orion Newco Series C Preferred Stock...........................................................  46
 Registration Rights...............................................................................................  48
 Certain Transfer Restrictions.....................................................................................  49
 The Debenture Investments.........................................................................................  50
 Corporate Structure After the Transactions........................................................................  53
</TABLE>
                                       i
<PAGE>
<TABLE>
                                                                                                                    PAGE
                                                                                                                    ----
<S>                                                                                                                  <C>
 Effect of the Exchange on the Capital Structure of Orion Newco....................................................  54
 Recommendation of the Board of Directors of Orion.................................................................  54
 Opinion of Orion's Financial Advisor..............................................................................  54
 Approvals.........................................................................................................  58
 Fees and Expenses.................................................................................................  58
 Certain Federal Income Tax Consequences...........................................................................  58
 Security Ownership of Certain Beneficial Owners Prior to and Following the Transactions...........................  61
THE RELATED TRANSACTIONS...........................................................................................  66
 The Notes Offering/Orion 1 Credit Facility Refinancing............................................................  66
 OAP Acquisition...................................................................................................  67
INFORMATION ABOUT ORION NEWCO......................................................................................  68
DESCRIPTION OF ORION NEWCO CAPITAL STOCK...........................................................................  68
 Orion Newco Common Stock..........................................................................................  68
 Orion Newco Preferred Stock.......................................................................................  68
 Orion Newco Senior Preferred Stock................................................................................  69
 Orion Newco Series C Preferred Stock..............................................................................  70
 Warrants and Options..............................................................................................  70
 Registration Rights...............................................................................................  71
 Certain Anti-Takeover Effects.....................................................................................  71
 Listing...........................................................................................................  73
 Transfer Agent....................................................................................................  73
ORION NEWCO SHARES ELIGIBLE FOR FUTURE SALE........................................................................  73
COMPARATIVE RIGHTS OF ORION STOCKHOLDERS AND ORION NEWCO STOCKHOLDERS..............................................  74
INFORMATION ABOUT ORION'S BUSINESS.................................................................................  75
 Overview..........................................................................................................  75
   
 The Orion Satellite System........................................................................................  75
 ------------------------------------------------------------------------------------------------------------------  --
The Orion Strategy.................................................................................................  76
 Industry Overview.................................................................................................  78
 Data Networking...................................................................................................  79
 Orion Market Opportunity..........................................................................................  80
 Orion Services....................................................................................................  82
  Private Communications Network Services..........................................................................  82
  Internet Backbone and Access Services............................................................................  83
  Video Distribution and Other Satellite Transmission Services.....................................................  84
  Features and Benefits............................................................................................  85
  -----------------------------------------------------------------------------------------------------------------  --
 Customers and Backlog.............................................................................................  86
 Sales and Marketing...............................................................................................  87
 Network Operations; Local Ground Operators........................................................................  89
 Migration Plan for New Markets....................................................................................  90
 Implementation of the Orion Satellite System......................................................................  91
  Orion 1..........................................................................................................  91
  Orion 2..........................................................................................................  93
    
 Orion 3..........................................................................................................  94
 Orbital Slots.....................................................................................................  96
 Insurance.........................................................................................................  98
 Competition.......................................................................................................  99
  Service Providers................................................................................................  99
  Satellite Capacity...............................................................................................  99
  Terrestrial Capacity............................................................................................. 101
</TABLE>
                                       ii
<PAGE>
<TABLE>
                                                                                                                    PAGE
                                                                                                                    ----
<S>                                                                                                                  <C>
 Regulation........................................................................................................  101
  Regulatory Overview..............................................................................................  101
  Authority to Construct, Launch and Operate Satellites............................................................  102
  Consultation with INTELSAT and EUTELSAT..........................................................................  102
  International Telecommunication Union............................................................................  102
  United States Regulatory Restrictions............................................................................  103
  International Regulation.........................................................................................  104
 Human Resources...................................................................................................  104
 Legal Proceedings.................................................................................................  104
MANAGEMENT OF ORION AND ORION NEWCO................................................................................  106
 Directors and Executive Officers..................................................................................  106
 Background of Directors and Executive Officers....................................................................  106
 Committees of the Board of Directors..............................................................................  109
   
 Limits on Liability; Indemnification..............................................................................  110
 Summary Compensation Table........................................................................................  111
 Option Grants in Last Fiscal Year.................................................................................  111
 Option Exercises in Last Fiscal Year and Year-end Option Values...................................................  111
 Compensation of Directors.........................................................................................  112
 Employment Agreements and Termination of Employment and Change in Control Arrangements............................  112
 Compensation Committee Interlocks and Insider Participation.......................................................  112
 Stock Option Plans................................................................................................  112
 Other Employee Benefit Plans......................................................................................  114
    
PRO FORMA CONDENSED CONSOLIDATED FINANCIAL STATEMENTS..............................................................  117
SELECTED CONSOLIDATED FINANCIAL AND OPERATIONAL DATA OF ORION......................................................  124
MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS OF
 ORION.............................................................................................................  126
 General...........................................................................................................  126
 Overview..........................................................................................................  126
 Results of Operations.............................................................................................  127
 Liquidity and Capital Resources...................................................................................  130
 Taxes.............................................................................................................  132
 Effect of Inflation...............................................................................................  133
 Effect of Recently Issued Financial Accounting Standards..........................................................  133
PRICE RANGE OF ORION COMMON STOCK AND DIVIDEND POLICY..............................................................  134
CERTAIN TRANSACTIONS...............................................................................................  135
FORWARD-LOOKING STATEMENTS.........................................................................................  137
OTHER MATTERS......................................................................................................  138
LEGAL MATTERS......................................................................................................  138
EXPERTS............................................................................................................  138
INDEX TO CONSOLIDATED FINANCIAL STATEMENTS OF ORION NETWORK SYSTEMS, INC. .........................................  F-1
GLOSSARY...........................................................................................................  G-1
ATTACHMENTS
ATTACHMENT A -- AGREEMENT AND PLAN OF MERGER
ATTACHMENT B -- SECTION 351 EXCHANGE AGREEMENT AND PLAN OF CONVERSION
ATTACHMENT C -- FORM OF CERTIFICATE OF DESIGNATIONS FOR ORION NEWCO SERIES C PREFERRED STOCK
ATTACHMENT D -- FAIRNESS OPINION OF SALOMON BROTHERS INC
</TABLE>
                                      iii
<PAGE>
                           ORION NETWORK SYSTEMS, INC.
                       2440 RESEARCH BOULEVARD, SUITE 400
                            ROCKVILLE, MARYLAND 20850

                           ORION NEWCO SERVICES, INC.
                       2440 RESEARCH BOULEVARD, SUITE 400
                            ROCKVILLE, MARYLAND 20850

                  ORION NETWORK SYSTEMS, INC. PROXY STATEMENT/
                      ORION NEWCO SERVICES, INC. PROSPECTUS

                         SPECIAL MEETING OF STOCKHOLDERS
                         OF ORION NETWORK SYSTEMS, INC.
                         TO BE HELD ON JANUARY 30, 1997
   
   This  Proxy   Statement/Prospectus  (the  "Proxy   Statement/Prospectus")  is
furnished  to  stockholders  of Orion  Network  Systems,  Inc.  ("Orion"  or the
"Company")  in  connection  with the  solicitation  by the Board of Directors of
Orion of proxies to be used at a special  meeting of  stockholders of Orion (the
"Special Meeting") and at any adjournments  thereof. The Special Meeting will be
held on Thursday,  January 30, 1997 at 9:00 a.m.,  local time,  at 2440 Research
Boulevard,  Suite 400, Rockville,  Maryland. This Proxy Statement/Prospectus and
form of proxy are first being sent or given to  stockholders on or about January
15, 1997.     

   At the Special Meeting,  Orion stockholders will be asked to consider and act
upon the following proposals:

   (1)   Ratification   of  the  Agreement  and  Plan  of  Merger  (the  "Merger
Agreement"),  dated as of January 8, 1997,  among Orion,  Orion Newco  Services,
Inc.,  a newly  formed  Delaware  corporation  with  no  significant  assets  or
liabilities and a wholly owned  subsidiary of Orion ("Orion  Newco"),  and Orion
Merger  Company,  Inc., a newly formed  Delaware  corporation and a wholly owned
subsidiary  of Orion Newco ("Orion  Merger  Subsidiary"),  and the  transactions
contemplated thereby.

   (2) Approval and adoption of the Section 351 Exchange  Agreement  and Plan of
Conversion (the "Exchange Agreement"),  dated as of June 1996, as amended, among
Orion, Orion Satellite Corporation,  a Delaware corporation ("OrionSat") that is
a wholly owned subsidiary of Orion and the sole general partner of International
Private  Satellite  Partners,  L.P.,  a  Delaware  limited  partnership  ("Orion
Atlantic"),  and each of the existing  limited  partners of Orion Atlantic other
than Orion (the  "Exchanging  Partners,"  and together with Orion,  the "Limited
Partners") and the transactions contemplated thereby.

   (3) Approval of the transactions (the "Debenture  Investments")  contemplated
by the Debenture  Purchase  Agreement (the "Debenture  Agreement"),  dated as of
January  13,  1997,  among  Orion,  Orion  Newco and each of  British  Aerospace
Holdings, Inc. (collectively,  with British Aerospace Public Limited Company and
its affiliates,  "British Aerospace") and Matra Marconi Space UK Limited ("Matra
Marconi Space").

The  refinancing of $210 million of existing  indebtedness  of Orion Atlantic to
release the existing  commitments of the Limited  Partners and their  affiliates
supporting such indebtedness is a condition to the Merger,  the Exchange and the
Debenture Investments, as discussed below.

   Merger.  Pursuant to the Merger  Agreement,  which was entered  into by Orion
under  Section  251(g) of the Delaware  General  Corporation  Law,  Orion Merger
Subsidiary will be merged with and into Orion in a tax-free  reorganization (the
"Merger"). Orion will be the surviving corporation in the Merger and will become
a wholly owned  subsidiary of Orion Newco. In the Merger,  each share of Orion's
common  stock,  par value $.01 per share (the  "Orion  Common  Stock"),  Orion's
Series A 8% Cumulative Redeemable Convertible Preferred Stock (the "Orion Series
A Preferred Stock") and Series B 8% Cumulative Redeemable  Convertible Preferred
Stock (the "Orion Series B Preferred  Stock," and together with the Orion Series
A Preferred Stock, the "Orion Senior Preferred Stock") will be converted,
<PAGE>
without any action on the part of the holder thereof,  into the right to receive
one share of Orion Newco's  common  stock,  par value $.01 per share (the "Orion
Newco  Common  Stock"),   Orion  Newco's  Series  A  8%  Cumulative   Redeemable
Convertible  Preferred  Stock (the "Orion Newco  Series A Preferred  Stock") and
Orion Newco's Series B 8% Cumulative Redeemable Convertible Preferred Stock (the
"Orion Newco Series B Preferred Stock," and together with the Orion Newco Series
A Preferred Stock, the "Orion Newco Senior Preferred Stock"),  respectively.  It
is expected that  approximately  10,974,121  shares of Orion Newco Common Stock,
13,871 shares of Orion Newco Series A Preferred  Stock and 4,298 shares of Orion
Newco Series B Preferred  Stock will be issued to the  stockholders  of Orion in
the Merger in exchange for their shares of Orion  Common  Stock,  Orion Series A
Preferred Stock and Orion Series B Preferred Stock, respectively. Such shares of
Orion Newco Series A Preferred  Stock and Orion Newco  Series B Preferred  Stock
will be convertible  as of the issuance date into an aggregate of  approximately
2,053,255  shares of Orion Newco  Common  Stock,  or  approximately  7.9% of the
shares  of Orion  Newco  Common  Stock  outstanding  on a fully  diluted  basis,
assuming a closing of the Merger as of January 30, 1997.

   Orion Newco will have,  after the Merger,  a  certificate  of  incorporation,
bylaws,  management  and capital  structure  (before the issuance of Orion Newco
Series  C  Preferred  Stock  described  below)  substantially  identical  in all
material respects to those of Orion. As a result of the Merger,  (i) Orion Newco
will become a public  holding  company owning all of the capital stock of Orion,
which will continue its business and  operations,  and (ii) the  stockholders of
Orion  Newco will have  substantially  the same  securities  and rights in Orion
Newco that they had in Orion,  except that their  percentage  ownership of Orion
Newco will be diluted as a result of the Exchange (as defined  below).  Approval
of the Merger Agreement also shall constitute the approval of the specific terms
therein and the  transactions  contemplated  thereunder,  including  the Merger.
Prior to voting on the Merger,  Orion  stockholders  should review carefully the
Merger Agreement, a copy of which is attached to this Proxy Statement/Prospectus
as Attachment A.

   Exchange.  Pursuant to the Exchange Agreement,  Orion has agreed, among other
things, to have Orion Newco issue shares of Orion Newco's Series C 6% Cumulative
Redeemable  Convertible  Preferred  Stock (the "Orion  Newco  Series C Preferred
Stock") for the  Exchanging  Partners'  limited  partnership  interests in Orion
Atlantic and other rights relating thereto (the "Exchange" and together with the
Merger, the "Merger Transactions").  As a result of the Exchange,  which will be
consummated  concurrently with the Merger,  Orion Newco will become the owner of
all the partnership  interests in Orion Atlantic  (through Orion Newco and Orion
as the sole limited  partners and OrionSat as the sole general  partner of Orion
Atlantic).  In addition,  Orion Newco will acquire certain rights currently held
by the Exchanging Partners, including the Exchanging Partners' rights to receive
repayment  of  various  advances  (aggregating  approximately  $37.5  million at
September 30, 1996) made to Orion Atlantic.  The approximately 121,988 shares of
Orion Newco Series C Preferred  Stock expected to be issued in the Exchange will
be convertible as of the issuance date into  approximately  6,970,740  shares of
Orion Newco  Common  Stock,  or  approximately  27% of the shares of Orion Newco
Common Stock  outstanding  on a fully diluted  basis,  assuming a closing of the
Merger  Transactions as of January 30, 1997 (the number of shares could increase
if the closing occurs after that date). As a result of the Exchange,  certain of
the Exchanging Partners will be principal  stockholders of Orion Newco. Prior to
voting on the Exchange,  Orion stockholders should review carefully the Exchange
Agreement,  a copy of which is  attached to this Proxy  Statement/Prospectus  as
Attachment B.

   Debenture Investments.  Pursuant to the Debenture Agreement,  Orion Newco has
agreed,  among other  things,  to issue to British  Aerospace  and Matra Marconi
Space  $50  million  and  $10  million,   respectively,  of  convertible  junior
subordinated debentures (the "Debentures").  The Debentures will mature 15 years
following  the date of  issuance  and will bear  interest at a rate of 8.75% per
annum to be paid  semi-annually in arrears solely in Orion Newco Common Stock at
prices of between  $10.21 and $14.00 per share.  The  Debentures to be issued to
British Aerospace and Matra Marconi Space will be convertible as of the issuance
date into  approximately  3,571,429  and 714,286  shares of Orion  Newco  Common
Stock,  respectively,  or  approximately  13.8% and 2.8% of the  shares of Orion
Newco Common Stock  outstanding on a fully diluted basis,  assuming a closing of
the Debenture  Investments  as of January 30, 1997. As a result of the Debenture
Investments (and the other transactions, including the Ex-

                                        2
<PAGE>
change,  in which British  Aerospace and an affiliate of Matra Marconi Space are
acquiring  securities of Orion  Newco),  British  Aerospace  will be the largest
stockholder of Orion Newco on both an actual and a fully diluted basis and Matra
Marconi  Space will be one of the  principal  stockholders  of Orion Newco.  The
consummation of the Debenture Investments is a condition to the Exchange.

   Reasons for Merger Transactions and Debenture Investments.  Orion's principal
objective  for the Merger  Transactions  is to simplify  Orion's  organizational
structure and improve its access to the capital markets. Orion believes that the
Merger  Transactions  will  enable  it  to:  (i)  consolidate  outside  investor
ownership at the Orion Newco level, (ii) improve the speed and efficiency of its
decision  making,  (iii) provide  Orion Newco with 100%  ownership of all of its
material  subsidiaries,  (iv)  allow  Orion  Newco to pursue  independently  its
business  plans and  financings  for all of its  satellites,  (v)  eliminate (in
exchange for Orion Newco stock) approximately $37.5 million of obligations Orion
Atlantic  owes to the  Exchanging  Partners and (vi)  increase  Orion's  overall
market capitalization.  Orion's principal reason for the issuance of $50 million
of Debentures to British  Aerospace is to raise  additional  capital for initial
payments  with respect to the Orion 2 satellite,  of which  approximately  $49.4
million of payments are due during 1997.  The sale of $10 million of  Debentures
to Matra  Marconi Space will involve a  re-investment  by Matra Marconi Space of
$10 million of the $13 million of satellite  incentive  payments  Matra  Marconi
Space will receive as manufacturer of the Orion 1 satellite upon consummation of
the Notes Offering described below.

   Access to the capital  markets is necessary for Orion to achieve its business
plan to construct and launch two additional  satellites,  Orion 2 (with coverage
of Europe,  Russia,  the eastern  United  States and Latin  America) and Orion 3
(with coverage of the Asia Pacific  region).  With this plan in mind,  Orion and
Orion  Newco  have been  pursuing  and will  continue  to pursue  the  following
transactions:

   (i) Notes  Offering:  a financing  consisting  of units of senior  notes (the
"Notes")  and common  stock  warrants  (the "Notes  Offering")  in the amount of
approximately  $347 million with expected gross proceeds of  approximately  $275
million,  excluding  approximately $72 million of overfunding of interest due on
such notes.  The principal  purpose of the Notes  Offering is to refinance  (the
"Orion 1 Credit  Refinancing")  the  indebtedness of Orion Atlantic  outstanding
under the existing  Credit  Agreement  (together with any related  documents and
agreements,  the "Orion 1 Credit  Facility")  dated December 6, 1991 among Orion
Atlantic,  the Banks  named  therein  (the  "Banks")  and Chase  Manhattan  Bank
(National Association), as Agent ("Chase"), and release the existing commitments
of the Limited Partners and their affiliates under the  Communication  Satellite
Capacity Agreements, the Contingent Communications Satellite Capacity Agreements
and  various  guarantees  or other  commitments  supporting  the  Orion 1 Credit
Facility (collectively,  the "Orion 1 Credit Facility Support"). Such release is
a condition to the Exchange.

   (ii) Orion 2 Construction  Contract:  a satellite  procurement  contract with
Matra Marconi Space for Orion 2 (the "Orion 2 Satellite Contract"),  under which
the manufacturer is to proceed with construction  based upon initial payments of
$25 million and further  payments through December 1997 limited to approximately
$25 million.  Orion expects to commence the  construction of Orion 2 immediately
following completion of the Notes Offering.

   (iii) Orion 3 Construction  Contract:  a satellite  procurement contract with
Hughes  Space for Orion 3 (the  "Orion 3 Satellite  Contract"),  under which the
manufacturer is to proceed with construction based upon initial payments through
January 31, 1997 of  approximately  $15 million,  with further  payments through
March 31, 1998 being  limited to $35  million,  payable in  approximately  equal
quarterly  installments.  The majority of the amounts due under the contract are
payable in the second and third quarters of 1998.  Orion commenced  construction
of Orion 3 in mid-December  1996 under an authorization to proceed,  and expects
to enter into a definitive satellite contract in January 1997.

   In addition to the Merger, the Notes Offering and the Debenture  Investments,
the Exchange is indirectly  conditioned on, among other things,  the acquisition
by Orion of the only  outstanding  minority  interest in Asia Pacific  Space and
Communcations,   Ltd.   ("Orion  Asia  Pacific")  from  British   Aerospace  for
approximately 86,000 shares of Orion Newco Common Stock (the "OAP Acquisition"),
which has occurred or is in the process of  occurring.  The pro forma  financial
information included in this Proxy  Statement/Prospectus gives effect to Merger,
the Exchange and the Debenture Investments, and the

                                        3
<PAGE>
transactions  on which they are  conditioned  (the Merger  Transactions  and the
Debenture   Investments   collectively   with  such  other   transactions,   the
"Transactions"),   including  the  Notes  Offering,  the  OAP  Acquisition,  the
application  of the net  proceeds  of the Notes  Offering  to effect the Orion 1
Credit  Refinancing  and  repayment of amounts  owed to STET,  a former  Limited
Partner,  and the  use of the  proceeds  of the  Debenture  Investments  to make
initial  payments  on Orion 2 (initial  payments  on Orion 3 are to be made from
cash on hand). See "Pro Forma Condensed Consolidated Financial Statements," "The
Merger,  the Exchange and the  Debenture  Investments  -- Reasons for the Merger
Transactions and the Debenture Investments" and "The Related Transactions."

   Each  proposal to be  considered  at the Special  Meeting  will be voted upon
separately by the Orion stockholders. However, failure by the Orion stockholders
to approve  the  Exchange  Agreement  will result in  termination  of the Merger
Agreement  by Orion,  Orion Newco and Orion Merger  Subsidiary.  The Merger is a
condition to the Exchange and is being proposed to enable the Exchange to occur.
If the Merger were to cease to be necessary to consummate the Exchange (which is
not expected to occur), the Board of Directors would cause Orion to proceed with
the Exchange but not the Merger.  In such event,  Orion (instead of Orion Newco)
would issue shares of Series C 6% Cumulative  Redeemable  Convertible  Preferred
Stock  for the  Exchanging  Partners'  limited  partnership  interests  in Orion
Atlantic and other rights  relating  thereto and Orion  (instead of Orion Newco)
would issue the Debentures,  but all other aspects of these  transactions  would
remain  the  same.  Since the  rights of  stockholders  of Orion  Newco  will be
substantially  the same as the rights of stockholders  of Orion,  Orion believes
that  consummation  of the Exchange  would have the same effect on  stockholders
whether or not the Merger occurs.  The Merger and the Exchange are conditions to
the Debenture  Investments,  and waivers of these conditions are not expected to
occur.  Repayment of the Orion 1 Credit  Facility is a condition to the Exchange
and the Debenture Investments, and this condition is not expected to be waived.

   This Proxy Statement/Prospectus provides a detailed description of the Merger
Transactions  and the  Debenture  Investments,  including  Orion's  reasons  for
entering  into the Merger  Transactions  and the Debenture  Investments  and the
effect of the Transactions on Orion and Orion Newco and their stockholders,  and
of the business  and  financial  condition of Orion and Orion Newco.  This Proxy
Statement/Prospectus  also  constitutes  the  prospectus for the shares of Orion
Newco Common Stock,  Orion Newco Series A Preferred Stock and Orion Newco Series
B Preferred Stock under the Securities Act of 1933, as amended (the  "Securities
Act"). Orion Newco has filed a Registration Statement on Form S-4, of which this
Proxy   Statement/Prospectus  is  a  part,  with  the  Securities  and  Exchange
Commission (the "Commission") with respect to the registration of such shares.

   SEE "RISK FACTORS"  BEGINNING ON PAGE 20 FOR A DISCUSSION OF CERTAIN  FACTORS
THAT SHOULD BE CONSIDERED BY ORION STOCKHOLDERS.
                                        4
<PAGE>
   THE  SECURITIES  TO BE  ISSUED  IN THE  MERGER  HAVE  NOT  BEEN  APPROVED  OR
DISAPPROVED BY THE SECURITIES  AND EXCHANGE  COMMISSION OR ANY STATE  SECURITIES
COMMISSION  NOR  HAS  THE  SECURITIES  AND  EXCHANGE  COMMISSION  OR  ANY  STATE
SECURITIES  COMMISSION  PASSED  UPON THE  ACCURACY  OR  ADEQUACY  OF THIS  PROXY
STATEMENT/PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.

   
   THE BOARD OF DIRECTORS OF ORION HAS RECOMMENDED UNANIMOUSLY (WITH THE BRITISH
AEROSPACE BOARD  REPRESENTATIVE  RECUSING  HIMSELF) THAT  STOCKHOLDERS  VOTE FOR
RATIFICATION OF THE MERGER AGREEMENT AND THE TRANSACTIONS  CONTEMPLATED THEREBY,
FOR  ADOPTION  AND  APPROVAL  OF THE  EXCHANGE  AGREEMENT  AND THE  TRANSACTIONS
CONTEMPLATED  THEREBY,  AND  FOR  APPROVAL  OF  THE  DEBENTURE  INVESTMENTS,  AS
DESCRIBED IN THIS PROXY STATEMENT/PROSPECTUS. ORION ANTICIPATES THAT ALL MEMBERS
OF ITS  BOARD  OF  DIRECTORS  WHO ARE  ORION  STOCKHOLDERS  AND  COMPANIES  THEY
REPRESENT (WHO HELD, IN THE AGGREGATE, APPROXIMATELY 38% OF ORION'S VOTING STOCK
OUTSTANDING AS OF SEPTEMBER 30, 1996) WILL ENTER INTO WRITTEN AGREEMENTS TO VOTE
FOR EACH OF THE FOREGOING  PROPOSALS TO BE  CONSIDERED  AT THE SPECIAL  MEETING.
    

       The date of this Proxy Statement/Prospectus is January 15, 1997.

                                        5
<PAGE>
                              AVAILABLE INFORMATION

   Orion is subject to the informational requirements of the Securities Exchange
Act of 1934, as amended (the "Exchange  Act").  In accordance  with the Exchange
Act,  Orion  files proxy  statements,  reports  and other  information  with the
Commission.  This  filed  material  can be  inspected  and  copied at the public
reference facilities maintained by the Commission in Washington, D.C. and at the
Regional  Offices of the  Commission  at 7 World Trade Center,  Suite 1300,  New
York,  NY 10048,  and  Citicorp  Center,  500 West Madison  Street,  Suite 1400,
Chicago,  Illinois 60661.  Copies of such material can be obtained at prescribed
rates from the Public  Reference  Room of the  Commission  at 450 Fifth  Street,
N.W.,   Washington,   D.C.  20549.  The  Commission  maintains  a  Web  site  at
http://www.sec.gov  containing  reports,  proxy and  information  statements and
other information  regarding  registrants,  including Orion and Orion Newco. The
Orion  Common  Stock is quoted on the Nasdaq  National  Market  under the symbol
"ONSI," and such reports,  proxy  statements  and other  information  concerning
Orion and Orion Newco also can be inspected at the offices of Nasdaq Operations,
1735 K Street, N.W., Washington, D.C. 20006.

   Orion Newco has filed with the  Commission a  registration  statement on Form
S-4 (herein,  together  with all  amendments  and  exhibits,  referred to as the
"Registration  Statement")  under the  Securities  Act with respect to the Orion
Newco Common Stock,  Orion Newco Series A Preferred Stock and Orion Newco Series
B  Preferred  Stock.  This Proxy  Statement/Prospectus  does not contain all the
information set forth in the Registration Statement,  certain parts of which are
omitted in accordance  with the rules and  regulations  of the  Commission.  For
further information,  reference is hereby made to the Registration Statement and
the   exhibits   filed   therewith.   Statements   contained   in   this   Proxy
Statement/Prospectus  relating to the contents of any contract or other document
referred to herein are not necessarily complete,  and in each instance reference
is made to the copy of such contact or other document filed as an exhibit to the
Registration  Statement,  each such statement being qualified in all respects by
such reference.

                                        6
<PAGE>
                                   SUMMARY

   The following is a summary of certain information contained elsewhere in this
Proxy Statement/Prospectus  and/or the Attachments hereto. Reference is made to,
and this Summary is qualified in its entirety by, the more detailed  information
contained in this Proxy  Statement/Prospectus  and such  Attachments.  Except as
otherwise indicated, information herein concerning the number of shares of Orion
capital stock issued and outstanding  prior to completion of the Transactions is
as of December 15, 1996. See "Glossary" beginning at page G-1 for definitions of
certain   defined  terms  and  certain   technical  terms  used  in  this  Proxy
Statement/Prospectus.

THE MERGER

The Merger Agreement........  The  Agreement  and Plan of  Merger  (the  "Merger
                              Agreement"),  dated as of January  8, 1997,  among
                              Orion Network Systems, Inc. ("Orion"), Orion Newco
                              Services,  Inc.  ("Orion  Newco") and Orion Merger
                              Company,   Inc.   ("Orion   Merger   Subsidiary"),
                              pursuant to which Orion Merger  Subsidiary will be
                              merged   with  and  into   Orion  in  a   tax-free
                              reorganization,  and  Orion  will  become a wholly
                              owned  subsidiary  of Orion  Newco  under  Section
                              251(g) of the  Delaware  General  Corporation  Law
                              (the "Merger").  See "The Merger, the Exchange and
                              the Debenture  Investments -- The Merger Agreement
                              -- Terms of the Merger Agreement."

Parties to the Merger.......  Orion was organized as a Delaware  corporation  in
                              1982.  Orion's  principal  executive  offices  are
                              located  at 2440  Research  Boulevard,  Suite 400,
                              Rockville, Maryland 20850 and its telephone number
                              is (301) 258-8101.  See "Information About Orion's
                              Business."  

                              Orion Newco is a Delaware corporation and a wholly
                              owned  subsidiary  of Orion  organized  in 1996 by
                              Orion for the purpose of effecting  the Merger and
                              the Exchange.  Orion Newco's  principal  executive
                              offices  are located at 2440  Research  Boulevard,
                              Suite  400,  Rockville,  Maryland  20850  and  its
                              telephone  number  is (301)  258-8101.  After  the
                              Merger, the certificate of incorporation,  bylaws,
                              management and capital  structure (before issuance
                              of the Orion Newco  Series C  Preferred  Stock) of
                              Orion Newco will be substantially identical in all
                              material  respects to those of Orion.  Orion Newco
                              has no material  assets and has not engaged in any
                              activities  except in connection  with the Merger.
                              See "Information About Orion Newco."

                              Orion Merger Subsidiary is a Delaware  corporation
                              and a  wholly  owned  subsidiary  of  Orion  Newco
                              organized  in 1996 by  Orion  for the  purpose  of
                              effecting the Merger.  Orion Merger Subsidiary has
                              no  material  assets  and has not  engaged  in any
                              activities  except in connection  with the Merger.
                              See "The Merger,  the  Exchange and the  Debenture
                              Investments-- The Merger Agreement -- Terms of the
                              Merger Agreement."

The Merger -- Structure       Orion  Merger  Subsidiary  will be merged with and
                              into  Orion and Orion will  become a wholly  owned
                              subsidiary  of Orion  Newco.  Each  share of Orion
                              Common Stock,  Orion Series A Preferred  Stock and
                              Orion   Series  B  Preferred   Stock   outstanding
                              immediately  prior to  consummation  of the Merger
                              will be converted,

                                        7
<PAGE>
                              without  any  action  on the  part  of the  holder
                              thereof,  into the  right  to  receive  one  newly
                              issued  share of Orion Newco Common  Stock,  Orion
                              Newco  Series A  Preferred  Stock and Orion  Newco
                              Series B Preferred Stock, respectively. The Merger
                              will  become  effective  upon  the  filing  of the
                              Delaware  Merger  Certificate  (as  defined in the
                              Merger  Agreement) with the Delaware  Secretary of
                              State,   which  is  expected  to  occur  following
                              ratification    or    approval   of   the   Merger
                              Transactions and the Debenture  Investments by the
                              requisite vote of the Orion  stockholders  and the
                              satisfaction or waiver of the other conditions set
                              forth in the  Merger  Agreement  and the  Exchange
                              Agreement.  See "The Merger,  the Exchange and the
                              Debenture  Investments -- The Merger  Agreement --
                              Terms of the Merger Agreement."

Conditions to Consummation of 
  the Merger................  The respective obligations of each party to effect
                              the Merger are subject to  satisfaction  or waiver
                              of  certain  conditions  set  forth in the  Merger
                              Agreement,   including,   among  others:  (i)  the
                              ratification  of the  Merger  Agreement  by  Orion
                              stockholders,    (ii)   the    receipt    of   all
                              authorizations,  consents  and  approvals  of  any
                              Governmental  Entity  (as such term is used in the
                              Merger  Agreement)  necessary for  consummation of
                              the  Merger,   (iii)  the   effectiveness  of  the
                              Registration  Statement,  (iv) the  receipt  of an
                              opinion  relating  to  the  tax  treatment  of the
                              Merger,   (v)  the   continued   accuracy  of  the
                              representations  and warranties made by each party
                              in the Merger  Agreement and (vi)  consummation of
                              the  Exchange  concurrently  with the Merger.  See
                              "The  Merger,   the  Exchange  and  the  Debenture
                              Investments -- The Merger  Agreement -- Conditions
                              to Obligations to Effect the Merger."

Board of Directors after the
  Merger....................  As  provided  in the  Merger  Agreement,  upon the
                              consummation of the Merger, the Board of Directors
                              of  Orion  Newco  will   consist  of  the  current
                              directors of Orion. See "The Merger,  the Exchange
                              and  the  Debenture   Investments  --  The  Merger
                              Agreement -- Terms of the Merger Agreement."

Management after the Merger.. As  provided  in the  Merger  Agreement,  upon the
                              consummation  of the  Merger,  the  management  of
                              Orion Newco will consist of the current members of
                              Orion  management.  See "The Merger,  the Exchange
                              and  the  Debenture   Investments  --  The  Merger
                              Agreement -- Terms of the Merger Agreement."

Accounting Treatment........  The   Merger   will   be   accounted   for   as  a
                              reorganization  of entities under common  control.
                              As  a   result,   the   assets   and   liabilities
                              transferred   pursuant   to  the  Merger  will  be
                              accounted  for  at  historical  cost  in a  manner
                              similar to a pooling of interests.

Regulatory Approval.........  Orion  is  aware  of  no  governmental   approvals
                              required  for  consummation  of the Merger,  other
                              than compliance  with federal  securities laws and
                              state securities or "Blue Sky" laws.

Certain Federal Income Tax 
  Consequences of the Merger. In the  opinion of Ernst & Young LLP,  tax advisor
                              to Orion,  Orion stockholders whose stock of Orion
                              is converted into the

                                        8
<PAGE>
                              right to receive stock of Orion Newco  pursuant to
                              the Merger (the  "Transferors")  will  qualify for
                              tax-free  treatment  pursuant to Sections  354 and
                              368 of the  Internal  Revenue  Code  of  1986,  as
                              amended    (the    "Code"),    assuming    certain
                              requirements,  such as continuity of interest, are
                              met.   Provided  the   conversion   qualifies  for
                              tax-free treatment, each Transferor's tax basis in
                              the  shares  of  Orion  Newco   capital  stock  it
                              receives  will be  equal  to its tax  basis in the
                              Orion stock it  transferred  to Orion  Newco.  All
                              Orion  stockholders  should  consult their own tax
                              advisors  concerning the tax  consequences  of the
                              Merger.  See "The  Merger,  the  Exchange  and the
                              Debenture  Investments  -- Certain  Federal Income
                              Tax Consequences."

Consequences of the Merger... Upon the consummation of the Merger, all shares of
                              Orion  Common  Stock  and Orion  Senior  Preferred
                              Stock  shall no  longer be  outstanding  and shall
                              automatically  be  retired,  and each  holder of a
                              certificate   representing  any  shares  of  Orion
                              Common  Stock and  Orion  Senior  Preferred  Stock
                              shall  cease  to  have  any  rights  with  respect
                              thereto, except the right to receive the shares of
                              Orion Newco  Common  Stock and Orion Newco  Senior
                              Preferred Stock to be issued in exchange therefor.
                              See "The Merger,  the  Exchange and the  Debenture
                              Investments -- The Merger Agreement -- No Exchange
                              of  Certificates."  Effective upon consummation of
                              the   Merger,   Orion  will  be  a  wholly   owned
                              subsidiary  of Orion Newco,  Orion will change its
                              name to Orion Oldco Services, Inc. and, as soon as
                              practicable  thereafter,  Orion  Newco will change
                              its  name to Orion  Network  Systems,  Inc.  Orion
                              Newco   will  be  a  holding   company   following
                              consummation  of  the  Merger,   Orion  will  have
                              limited  operations,  and  subsidiaries  of Orion,
                              particularly  Orion  Atlantic (as defined  below),
                              will be the principal  operating  companies within
                              the  consolidated  group.  The  structure of Orion
                              Newco after the Merger  Transactions  is set forth
                              below under the caption "The Merger,  the Exchange
                              and  the   Debenture   Investments   --  Corporate
                              Structure After the Transactions."

THE EXCHANGE

The Exchange Agreement......  The Section  351  Exchange  Agreement  and Plan of
                              Conversion (the "Exchange Agreement"), dated as of
                              June  1996,   as  amended,   among  Orion,   Orion
                              Satellite  Corporation,   a  Delaware  corporation
                              ("OrionSat")  that is a wholly owned subsidiary of
                              Orion   and   the   sole   general    partner   of
                              International Private Satellite Partners,  L.P., a
                              Delaware limited  partnership  ("Orion Atlantic"),
                              and each of the existing limited partners of Orion
                              Atlantic   other  than   Orion  (the   "Exchanging
                              Partners").  See "The Merger, the Exchange and the
                              Debenture Investments."

Parties to the Exchange.....  The  parties  to the  Exchange  are  Orion,  Orion
                              Newco, OrionSat and Orion Atlantic  (collectively,
                              the "Orion parties") and the Exchanging  Partners.
                              See "The Merger,  the  Exchange and the  Debenture
                              Investments -- The Exchange Agreement -- Parties."

                                        9
<PAGE>
Structure of the Exchange...  Pursuant  to the  Exchange  Agreement,  Orion  has
                              agreed,  among other  things,  to have Orion Newco
                              issue  shares of Orion  Newco  Series C  Preferred
                              Stock  for  the   Exchanging   Partners'   limited
                              partnership  interests in Orion Atlantic and other
                              rights relating thereto. In addition,  Orion Newco
                              will acquire certain rights  currently held by the
                              Exchanging  Partners,   including  the  Exchanging
                              Partners'  rights to receive  repayment of various
                              advances  made  to  Orion   Atlantic   aggregating
                              approximately $37.5 million at September 30, 1996.
                              As a result  of the  Exchange,  Orion  Newco  will
                              become the owner of all the partnership  interests
                              in Orion  Atlantic  (through Orion Newco and Orion
                              as the sole  limited  partners and OrionSat as the
                              sole  general  partner  of  Orion  Atlantic).  The
                              approximately 121,988 shares of Orion Newco Series
                              C  Preferred  Stock  expected  to be issued in the
                              Exchange  will be  convertible  as of the issuance
                              date into approximately  6,970,740 shares of Orion
                              Newco Common Stock,  or  approximately  27% of the
                              shares of Orion Newco Common Stock  outstanding on
                              a fully diluted  basis,  assuming a closing of the
                              Merger Transactions as of January 30, 1997. If the
                              Merger  Transactions close after January 30, 1997,
                              Orion Newco will be obligated to make certain cash
                              refunds  of  payments   made  by  the   Exchanging
                              Partners after that date under various agreements;
                              if Orion  Newco does not have  sufficient  cash to
                              make such  refunds,  the  refunds  will be made in
                              shares of Orion Newco  Series C  Preferred  Stock,
                              and the  number of shares  issued in the  Exchange
                              will  increase.  As  a  result  of  the  Exchange,
                              certain  of  the   Exchanging   Partners  will  be
                              principal   stockholders  of  Orion  Newco.  Orion
                              Atlantic will remain in existence and maintain its
                              status as a partnership,  with Orion Newco,  Orion
                              and OrionSat (a wholly owned  subsidiary of Orion)
                              as its  partners.  The  structure  of Orion  Newco
                              after the  Transactions  is set forth  below under
                              the caption  "The  Merger,  the  Exchange  and the
                              Debenture Investments -- Corporate Structure After
                              the Transactions."

Orion Newco Series C Preferred 
  Stock.....................  Dividends.  Subject to the preferential  rights of
                              the Orion Newco Series A Preferred Stock and Orion
                              Newco Series B Preferred Stock, the record holders
                              of  Orion  Newco  Series  C  Preferred  Stock  are
                              entitled  to receive  dividends  at the rate of 6%
                              per  annum,  payable  exclusively  (except  in the
                              event  of a  liquidation)  in Orion  Newco  Common
                              Stock.  The number of shares of Orion Newco Common
                              Stock distributable as a dividend on each share of
                              Orion Newco Series C Preferred Stock is calculated
                              based on the  market  price of such  common  stock
                              under a formula  set forth in the  Certificate  of
                              Designations   for  the  Orion   Newco   Series  C
                              Preferred     Stock    (the     "Certificate    of
                              Designations").

                                       10
<PAGE>
                              Liquidation.  Each share of Orion  Newco  Series C
                              Preferred  Stock has a  liquidation  preference of
                              $1,000  per share  (plus all  accrued  and  unpaid
                              dividends)  over the Orion Newco  Common Stock and
                              any  series,  class or  classes  of stock  ranking
                              junior  to the  Orion  Newco  Series  C  Preferred
                              Stock.  Voting  Rights.  The  holders of the Orion
                              Newco Series C Preferred Stock will be entitled to
                              vote on all matters  submitted to the stockholders
                              of  Orion  Newco  for a  vote  together  with  the
                              holders of Orion Newco Common  Stock,  Orion Newco
                              Series A Preferred  Stock and Orion Newco Series B
                              Preferred  Stock,  voting  together  as  a  single
                              class. Each share of Orion Newco Common Stock will
                              be  entitled  to one vote per share and each share
                              of Orion Newco  Senior  Preferred  Stock and Orion
                              Newco   Series  C   Preferred   Stock   (including
                              fractional  shares)  will be  entitled to one vote
                              for each whole share of Orion Newco  Common  Stock
                              that would be  issuable  upon  conversion  of such
                              share of Orion Newco  Senior  Preferred  Stock and
                              Orion   Newco    Series   C    Preferred    Stock,
                              respectively,  at the  time  the  vote  is  taken.

                              Conversion.  The Orion  Newco  Series C  Preferred
                              Stock  is  convertible  into  Orion  Newco  Common
                              Stock,  at the option of the  holder,  at any time
                              after issuance,  at a conversion  price of $17.50,
                              subject to adjustment. Orion Newco may require, by
                              written  notice  to all  holders  of  Orion  Newco
                              Series C Preferred Stock, the mandatory conversion
                              of all of the  outstanding  Orion  Newco  Series C
                              Preferred  Stock into Orion Newco  Common Stock if
                              the closing  price of the Orion Newco Common Stock
                              over 20 of the 30 prior  trading  days is  greater
                              than or equal to the  conversion  price of $17.50,
                              subject to  adjustment.  In each case, all accrued
                              and unpaid  dividends  are payable (in Orion Newco
                              Common  Stock) upon  conversion.  In the case of a
                              mandatory  conversion  within  two years  from the
                              initial date of issuance of the Orion Newco Series
                              C Preferred  Stock,  the number of shares of Orion
                              Newco  Common Stock into which the shares of Orion
                              Newco Series C Preferred  Stock are converted will
                              be  increased  by the  number  of  shares of Orion
                              Newco  Common Stock that would be payable if Orion
                              Newco  were  immediately  to  declare  and pay all
                              dividends that in the absence of conversion  would
                              have  accrued on such shares of Orion Newco Series
                              C  Preferred  Stock  over  the  six-month   period
                              immediately  following the date of such  mandatory
                              conversion;  provided,  however,  that  the  total
                              dividends,  including  any  additional  amounts in
                              respect  of  dividends  paid  as  a  result  of  a
                              mandatory  conversion,  will not be less  than the
                              amount of dividends that would have accrued on all
                              outstanding  shares  of the Orion  Newco  Series C
                              Preferred  Stock for one full year  following  the
                              date of issuance.

                                       11
<PAGE>
                              Redemption. Orion Newco will be required to redeem
                              all of the Orion Newco Series C Preferred Stock on
                              the 25th anniversary of issuance (2022). The Orion
                              Newco Series C Preferred Stock also is redeemable,
                              in whole or in part, at the option of Orion Newco,
                              at any  time  after  the  earlier  of  the  second
                              anniversary  of the  issuance  of the Orion  Newco
                              Series C Preferred Stock, or the effective date of
                              a  Reorganization  (as  such  term  is used in the
                              Certificate  of  Designations)  for  an  aggregate
                              redemption  price of $1,000  per  share  (plus all
                              accrued and unpaid  dividends  thereon).  

                              See "The Merger,  the  Exchange and the  Debenture
                              Investments  --  Description  of the  Orion  Newco
                              Series C Preferred Stock."

Conditions to Closing.......  Orion and the Exchanging Partners.  The closing of
                              the Exchange  Agreement is conditioned upon, among
                              other things,  the satisfaction or waiver by Orion
                              and  the  Exchanging  Partners  of  the  following
                              conditions: (i) completion of a refinancing of the
                              indebtedness of Orion Atlantic  outstanding  under
                              the Orion 1 Credit Facility,  (ii) the termination
                              of all  agreements  between or among the Banks and
                              Chase,  on the one hand,  and one or more of Orion
                              Newco,  Orion  Atlantic,  OrionSat,  Orion and the
                              Exchanging Partners and/or their affiliates on the
                              other  hand,   relating  to  the  Orion  1  Credit
                              Facility or the security or credit support thereof
                              (the  "Bank  Agreement  Termination"),  (iii)  the
                              termination of all  obligations  under the Orion 1
                              Credit   Facility   Support,   (iv)   the   Option
                              Agreement,  dated December 10, 1996, between Orion
                              Atlantic  and Matra  Marconi  Space  being in full
                              force  and  effect,  Orion  Atlantic  not being in
                              default  thereunder and Orion Atlantic having made
                              all  payments   required  to  be  made  thereunder
                              through  the  earlier of the  closing  date of the
                              Exchange  and March  31,  1997,  and the  Restated
                              Amendment  #10,  dated  December 10, 1996,  to the
                              Orion 1 Satellite  Contract  (as  defined  below),
                              being in full force and effect, and Orion Atlantic
                              not being in default thereunder, (v) the formation
                              of   Orion   Newco   with   a    certificate    of
                              incorporation,   bylaws,   capital  structure  and
                              management substantially identical in all material
                              respects to those of Orion,  (vi)  procurement  of
                              consents   needed   for   the   Exchange,    (vii)
                              consummation   of   the   Merger   prior   to   or
                              concurrently  with the Exchange and (viii) receipt
                              by the  Exchanging  Partners  of an  opinion  from
                              Ernst & Young LLP,  tax  advisor to Orion,  to the
                              effect  that the  Merger and the  Exchange,  taken
                              together, will be a tax-free exchange described in
                              Code  Section  351(a). 

                              Lockheed  Martin CLS.  The closing of the Exchange
                              Agreement is conditioned  upon the satisfaction or
                              waiver by  Lockheed  Martin  CLS of the  condition
                              that  Lockheed  Martin CLS and Matra Marconi Space
                              enter into a subcontract  to the Orion 2 Satellite
                              Contract relating to the launch of Orion 2.

                              Orion   Parties.   The  closing  of  the  Exchange
                              Agreement is conditioned  upon the satisfaction or
                              waiver  by the  Orion  parties  of  the  following
                              conditions: (i) the ratification or approval by

                                       12
<PAGE>
                              Orion  stockholders  of the  Merger  Transactions,
                              (ii) the amendment and  restatement  of the Second
                              Amended  and  Restated  Partnership  Agreement  of
                              Orion Atlantic (the  "Partnership  Agreement") and
                              (iii) receipt by Orion Newco of approximately  $60
                              million from the Debenture  Investments.  See "The
                              Merger, the Exchange and the Debenture Investments
                              -- The  Exchange  Agreement --  Conditions  to the
                              Exchange."  

                              Satisfaction   of  Conditions.   It  is  presently
                              anticipated  that  each of the  conditions  to the
                              Exchange  would have to be satisfied to consummate
                              the  Exchange  (and  therefore  the  Merger).  The
                              Exchanging  Partners are not expected to waive any
                              of  the   conditions  to  their   obligations   to
                              consummate the Exchange,  and the Orion parties do
                              not intend to waive any of the conditions to their
                              obligations to consummate the Exchange.

Accounting Treatment......... The  Exchange   will  be   accounted   for  as  an
                              acquisition   of  minority   interest   using  the
                              purchase  method of accounting.  As a result,  the
                              assets and  liabilities  of Orion Atlantic will be
                              revalued  to  fair  value  to  the  extent  of the
                              Limited Partners'  interests  acquired as a result
                              of the Exchange.

Representations, Warranties, 
Covenants and 
Indemnification.............. Orion and  OrionSat  have  agreed  (and  Orion has
                              agreed to bind Orion Newco  pursuant to a separate
                              indemnity  agreement) to indemnify the  Exchanging
                              Partners  for  certain  losses  arising out of any
                              claims relating to the Exchange Agreement, subject
                              to certain exceptions, limitations and conditions.
                              See "The Merger,  the  Exchange and the  Debenture
                              Investments  -- The Exchange  Agreement -- Certain
                              Provisions of the Exchange Agreement."

Registration Rights.......... The  Exchanging  Partners will be granted  certain
                              shelf, demand and "piggyback"  registration rights
                              with respect to the Orion Newco Series C Preferred
                              Stock to be received by them in the  Exchange  and
                              the Orion Newco Common Stock issuable as dividends
                              thereon or upon the conversion  thereof.  See "The
                              Merger, the Exchange and the Debenture Investments
                              -- Registration Rights."

Transfer Restrictions........ Each of the  Exchanging  Partners  will agree in a
                              Transfer   Restriction   Agreement,   among  other
                              things,  that it will not  transfer  any shares of
                              Orion Newco Common Stock issued upon conversion of
                              shares of Orion Newco Series C Preferred  Stock or
                              as  dividends  on Orion  Newco  Series C Preferred
                              Stock (the  "Affected  Shares") for 180 days after
                              the issuance of the Orion Newco Series C Preferred
                              Stock without the prior  written  consent of Orion
                              Newco,  unless such a transfer is to an  affiliate
                              or does  not  involve  a  public  distribution  or
                              public offering or occurs as the result of certain
                              events  set  forth  in  the  Transfer  Restriction
                              Agreement,  and is  conducted  as  provided in the
                              Transfer Restriction Agreement.  Also, each of the
                              Exchanging  Partners  will  agree,  pursuant  to a
                              Transfer  Restriction  Agreement,  not to transfer
                              during any 90-day period Affected Shares

                                       13
<PAGE>
                              that  collectively  represent more than 25% of the
                              aggregate  number of shares of Orion Newco  Common
                              Stock  issuable  upon the  conversion of the Orion
                              Newco  Series C Preferred  Stock  received by such
                              Exchanging   Partner   pursuant  to  the  Exchange
                              Agreement  or as  dividends  on  the  Orion  Newco
                              Series C  Preferred  Stock,  except as provided in
                              the  Transfer  Restriction  Agreement.   See  "The
                              Merger, the Exchange and the Debenture Investments
                              -- Certain Transfer Restrictions."

Closing After January 30, 1997
                              If the  Exchange  closes  after  January 30, 1997,
                              Orion  Newco  will  be   obligated  to  make  cash
                              refunds,  on or shortly after the closing date, of
                              payments  made by the  Exchanging  Partners  after
                              that  date  under  the  Orion  1  Credit  Facility
                              Support;  if Orion Newco does not have  sufficient
                              cash to make such  refunds,  the  refunds  will be
                              made in shares of Orion  Newco  Series C Preferred
                              Stock,  and the  number  of  shares  issued in the
                              Exchange will  increase.  If the Notes Offering is
                              as large or larger than that presently anticipated
                              by  the  Company,   all   payments   made  by  the
                              Exchanging  Partners  after January 30, 1997 under
                              the  Orion  1  Credit  Facility  Support  will  be
                              refunded  in cash and the number of shares  issued
                              in  the  Exchange  will  not  increase.  See  "The
                              Merger, the Exchange and the Debenture Investments
                              -- The Exchange Agreement -- Closing After January
                              30, 1997."

REASONS FOR THE MERGER 
TRANSACTIONS AND THE 
DEBENTURE INVESTMENTS

Principal Reasons for
  Transactions............... Orion's   principal   objective   for  the  Merger
                              Transactions is to simplify Orion's organizational
                              structure  and  improve  its access to the capital
                              markets.    Orion   believes   that   the   Merger
                              Transactions  will  enable it to: (i)  consolidate
                              outside  investor  ownership  at the  Orion  Newco
                              level,  (ii) improve the speed and  efficiency  of
                              its decision  making,  (iii)  provide  Orion Newco
                              with  100%   ownership  of  all  of  its  material
                              subsidiaries,  (iv)  allow  Orion  Newco to pursue
                              independently  its business  plans and  financings
                              for  all  of its  satellites,  (v)  eliminate  (in
                              exchange  for  Orion  Newco  stock)  approximately
                              $37.5 million of  obligations  Orion Atlantic owes
                              to  the  Exchanging  Partners  and  (vi)  increase
                              Orion's  overall  market  capitalization.  Orion's
                              principal  reason for the  issuance of $50 million
                              of  Debentures  to British  Aerospace  is to raise
                              additional   capital  for  initial  payments  with
                              respect  to  the  Orion  2  satellite,   of  which
                              approximately  $49.4  million of payments  are due
                              during 1997. The sale of $10 million of Debentures
                              to   Matra    Marconi   Space   will   involve   a
                              re-investment   by  Matra  Marconi  Space  of  $10
                              million of the $13 million of satellite  incentive
                              payments  Matra  Marconi Space will receive as the
                              manufacturer   of  the  Orion  1  satellite   upon
                              consummation   of   the   Notes   Offering.    The
                              consummation  of the  Debenture  Investments  is a
                              condition to the Exchange.

                                       14
<PAGE>
Related Transactions........  Access to the  capital  markets is  necessary  for
                              Orion to achieve its  business  plan to  construct
                              and  launch  two  additional  satellites,  Orion 2
                              (with  coverage  of Europe,  Russia,  the  eastern
                              United States and Latin America) and Orion 3 (with
                              coverage of the Asia  Pacific  region).  With this
                              plan in mind,  Orion  and  Orion  Newco  have been
                              pursuing and will continue to pursue the following
                              transactions:    

                              (i) Notes  Offering:  (i) a Notes  Offering in the
                              amount of approximately $347 million with expected
                              gross  proceeds  of  approximately  $275  million,
                              excluding approximately $72 million of overfunding
                              of  interest  due on  such  notes.  The  principal
                              purpose of the Notes  Offering is to refinance the
                              indebtedness of Orion Atlantic  outstanding  under
                              the  Orion  1  Credit  Facility  and  release  the
                              existing  commitments of the Limited  Partners and
                              their affiliates under the Orion 1 Credit Facility
                              Support.  Such  release  is  a  condition  to  the
                              Exchange.  

                              (ii) Orion 2  Construction  Contract:  the Orion 2
                              Satellite  Contract,  under which the manufacturer
                              is to proceed with construction based upon initial
                              payments  of  $25  million  and  further  payments
                              through December 1997 limited to approximately $25
                              million.    Orion    expects   to   commence   the
                              construction  of  Orion  2  immediately  following
                              completion of the Notes Offering.

                              (iii) Orion 3 Construction  Contract:  the Orion 3
                              Satellite  Contract,  under which the manufacturer
                              is to proceed with construction based upon initial
                              payments  through  January  31,  1997  aggregating
                              approximately  $15 million,  with further payments
                              through  March  31,  1998  being  limited  to  $35
                              million,  payable in approximately equal quarterly
                              installments.  The  majority  of the  amounts  due
                              under the  contract  are payable in the second and
                              third   quarters   of   1998.    Orion   commenced
                              construction of Orion 3 in mid-December 1996 under
                              an authorization to proceed,  and expects to enter
                              into a  definitive  satellite  contract in January
                              1997.

                              In addition to the Merger,  the Notes Offering and
                              the   Debenture   Investments,   the  Exchange  is
                              indirectly conditioned on, among other things, the
                              acquisition  by  Orion  of  the  only  outstanding
                              minority  interest  in  Orion  Asia  Pacific  from
                              British Aerospace for approximately  86,000 shares
                              of Orion Newco Common Stock, which has occurred or
                              is in the  process  of  occurring.  The pro  forma
                              financial   information  included  in  this  Proxy
                              Statement/Prospectus  gives  effect to the Merger,
                              the Exchange and the Debenture Investments and the
                              transactions   on  which  they  are   conditioned,
                              including the Notes Offering, the OAP Acquisition,
                              the  application  of the net proceeds of the Notes
                              Offering to effect the Orion 1 Credit  Refinancing
                              and  repayment  of amounts  owed to STET, a former
                              Limited  Partner,  and the use of the  proceeds of
                              the Debenture Investments to make initial payments
                              on Orion 2 (initial  payments on Orion 3 are to be
                              made from cash on hand).  See "Pro Forma Condensed
                              Consolidated  Financial  Statements," "The Merger,
                              the  Exchange  and the  Debenture  Investments  --
                              Reasons for

                                       15
<PAGE>
                              the   Merger   Transactions   and  the   Debenture
                              Investments" and "The Related Transactions."

                              Each  proposal  to be  considered  at the  Special
                              Meeting will be voted upon separately by the Orion
                              stockholders.   However,   failure  by  the  Orion
                              stockholders  to approve  the  Exchange  Agreement
                              will result in termination of the Merger Agreement
                              by Orion, Orion Newco and Orion Merger Subsidiary.
                              The Merger is a condition  to the  Exchange and is
                              being proposed to enable the Exchange to occur. If
                              the  Merger  were  to  cease  to be  necessary  to
                              consummate the Exchange  (which is not expected to
                              occur),  the Board of Directors  would cause Orion
                              to proceed  with the  Exchange but not the Merger.
                              In such  event,  Orion  (instead  of Orion  Newco)
                              would  issue  shares  of  Series  C 6%  Cumulative
                              Redeemable  Convertible  Preferred  Stock  for the
                              Exchanging Partners' limited partnership interests
                              in  Orion  Atlantic  and  other  rights   relating
                              thereto and Orion  (instead of Orion  Newco) would
                              issue the  Debentures,  but all other  aspects  of
                              these  transactions  would remain the same.  Since
                              the rights of  stockholders of Orion Newco will be
                              substantially   the   same   as  the   rights   of
                              stockholders   of  Orion,   Orion   believes  that
                              consummation  of the Exchange  would have the same
                              effect on  stockholders  whether or not the Merger
                              occurs. The Merger and the Exchange are conditions
                              to the Debenture Investments, and waivers of these
                              conditions are not expected to occur. Repayment of
                              the Orion 1 Credit  Facility is a condition to the
                              Exchange and the Debenture  Investments,  and this
                              condition is not expected to be waived.

SPECIAL MEETING

Date, Time, Place of Meeting. The  Special  Meeting  will be  held on  Thursday,
                              January 30, 1997 at 9:00 a.m., local time, at 2440
                              Research   Boulevard,    Suite   400,   Rockville,
                              Maryland.

Record Date.................. Only Orion  stockholders of record at the close of
                              business on December 23, 1996 (the "Record  Date")
                              are  entitled  to  notice  of and to  vote  at the
                              Special Meeting or any adjournment thereof, unless
                              a new  record  date is  fixed  for  any  adjourned
                              meeting. See "The Special Meeting -- Voting Rights
                              and Related Matters."

Purpose of the Special Meeting
                              At the Special Meeting, Orion stockholders will be
                              asked to consider  and vote upon (i)  ratification
                              of  the  Merger  Agreement  and  the  transactions
                              contemplated  thereby,  (ii) approval and adoption
                              of the  Exchange  Agreement  and the  transactions
                              contemplated  thereby  and (iii)  approval  of the
                              Debenture Investments. See "The Special Meeting --
                              Voting Rights and Related Matters."

                                       16
<PAGE>
Quorum....................... The  holders  of a  majority  of the  votes of the
                              shares  of  Orion   capital   stock   issued   and
                              outstanding  and  entitled  to  vote,  present  in
                              person  or  represented  by  proxy,  treated  as a
                              single  class,  will be required to  constitute  a
                              quorum at the Special  Meeting.  See "The  Special
                              Meeting -- Voting Rights and Related Matters."
   
Votes Required............... The  affirmative  vote of holders of a majority of
                              the  votes of the  shares of Orion  capital  stock
                              that are  entitled to vote and that are present in
                              person  or  represented  by proxy  at the  Special
                              Meeting,  treated  as  a  single  class,  will  be
                              required to approve each proposal to be considered
                              at the Special Meeting. Orion anticipates that all
                              members  of the Board of  Directors  who are Orion
                              stockholders  and companies  they  represent  (who
                              held,  in  the  aggregate,  approximately  38%  of
                              Orion's  voting  stock as of  September  30, 1996)
                              will enter  into  written  agreements  to vote for
                              each such  proposal.  Each  share of Orion  Common
                              Stock will be entitled to one vote per share,  and
                              each share of Orion  Series A Preferred  Stock and
                              Orion   Series  B   Preferred   Stock   (including
                              fractional  shares)  will be  entitled to one vote
                              for each whole  share of Orion  Common  Stock that
                              would be issuable upon conversion of such share of
                              Orion Series A Preferred  Stock and Orion Series B
                              Preferred  Stock,  respectively.  See "The Special
                              Meeting -- Voting Rights and Related  Matters" and
                              "-- Votes Required."     

Dissenters' Rights........... Orion  stockholders have no dissenters'  rights in
                              connection with the matters submitted by Orion for
                              stockholder   ratification   or  approval  at  the
                              Special  Meeting.  See "The Special  Meeting -- No
                              Dissenters' Rights."

Revocability of Proxies...... An  Orion  stockholder  giving a proxy in the form
                              accompanying this Proxy  Statement/Prospectus  has
                              the  power  to  revoke  the  proxy  prior  to  its
                              exercise.   A  proxy   may  be   revoked   by  any
                              stockholder  who attends  the Special  Meeting and
                              gives  notice of the  stockholder's  intention  to
                              vote in person,  without compliance with any other
                              formalities.  In addition,  any Orion  stockholder
                              may revoke a proxy at any time  before it is voted
                              by executing and delivering a later dated proxy or
                              by delivering a written notice to the Secretary of
                              Orion stating that the proxy is revoked.  See "The
                              Special Meeting -- Proxies."

BOARD RECOMMENDA
  -TION...................... The Board of Directors  has  unanimously  approved
                              (with the British  Aerospace Board  representative
                              recusing   himself)   the  terms  of  the   Merger
                              Agreement,   the   Exchange   Agreement   and  the
                              Debenture   Agreement  and  determined   that  the
                              Merger, the Exchange and the Debenture Investments
                              are  in  the  best   interest  of  Orion  and  its
                              stockholders.  The  Board  recommends  unanimously
                              (with the British  Aerospace Board  representative
                              recusing   himself)  that  stockholders  vote  FOR
                              ratification  of  the  Merger  Agreement  and  the
                              transactions  contemplated  thereby,  FOR approval
                              and  adoption of the  Exchange  Agreement  and the
                              transactions   contemplated   thereby,   and   FOR
                              approval of the Debenture Investments.

                                       17
<PAGE>
               SUMMARY CONSOLIDATED FINANCIAL AND OPERATIONAL DATA

   The following table sets forth summary consolidated financial and operational
data of the Company as of and for the years ended December 31, 1994 and 1995 and
for the nine months ended  September 30, 1995 and 1996.  The data should be read
in conjunction with "Management's Discussion and Analysis of Financial Condition
and  Results of  Operations  of  Orion,"  the Pro Forma  Condensed  Consolidated
Financial  Statements and the Consolidated  Financial  Statements of the Company
and the related notes included elsewhere in this Proxy Statement/Prospectus. The
summary consolidated financial data under the captions "Consolidated  Statements
of  Operations  Data" for the years ended  December 31, 1994 and 1995,  with the
exception  of the Pro Forma data,  were  derived  from the audited  consolidated
financial statements of the Company. The summary consolidated  financial data as
of September  30, 1996,  and for the nine months  ended  September  30, 1995 and
1996,  with the exception of the Pro Forma data,  are derived from the Company's
unaudited  consolidated  financial  statements.  The  Pro  Forma  data  are  not
necessarily  indicative  of the results that would have been  achieved,  nor are
they indicative of the Company's future results.
<TABLE>
<CAPTION>
   
                                                                                              NINE MONTHS
                                                 YEAR ENDED DECEMBER 31,                  ENDED SEPTEMBER 30,
                                        -------------------------------------   ------------------------------------
                                                          (DOLLARS IN THOUSANDS, EXCEPT PER SHARE DATA)
                                                                                                            1996 PRO
                                           1994        1995     1995 PROFORMA(1)    1995        1996        FORMA(1)
                                        ----------- ----------- ---------------- ----------- ------------ -----------
<S>                                     <C>         <C>         <C>              <C>         <C>          <C>
Consolidated Statements of Operations
  Data:
Revenues..............................  $    3,415  $   22,284  $   22,284       $   13,947  $    30,016  $    30,016
Interest expense......................          61      24,738      50,637           17,080       20,229       39,521
Net loss(2)...........................      (7,965)    (26,915)   (103,156)         (19,985)     (19,807)     (67,263)
Net loss per common share.............  $    (0.86) $    (3.07) $   (12.01)      $    (2.42) $     (1.90) $     (6.46)
Shares used in calculating per share
  data (3)............................   9,272,166   9,103,505   9,376,719        8,522,067   10,943,287   11,544,626
                                        ----------- ----------- ---------------- ----------- ------------ ------------
Ratio of earnings to fixed charges(4).          --          --          --               --           --           --

Other Operating Data:
Number of customers...................          34         109                           79          167
Capital expenditures..................  $   51,103  $    9,060                   $    3,863  $    10,266
Customer contract backlog (5).........  $   39,122  $  120,612                   $   94,890  $   134,320  $   123,000
Points of service (6).................          57         151                          124          304
EBITDA (7)............................  $  (14,014) $  (15,427)                  $  (15,177) $       134
    
</TABLE>

<TABLE>
<CAPTION>
   
                                       AS OF SEPTEMBER 30, 1996
                                       ------------------------
                                         ACTUAL   PRO FORMA(1)
                                       ---------  ------------
<S>                                     <C>       <C>
Consolidated Balance Sheet Data:
Cash and cash equivalents............   $ 36,657  $122,339
Restricted cash (8)..................         --    72,000
Total assets.........................    355,977   566,292
Long-term debt (less current
portion).............................    221,781   425,513
Limited Partners' interest in Orion
  Atlantic (9).......................     19,961        --
Redeemable preferred stock...........     20,539   114,539
Total stockholders' equity...........      6,891       967
Book value per share.................        .63       .09
    
</TABLE>
- ----------
   
(1) Adjusted  to reflect  the pro forma  effects of the  Transactions  (see "Pro
    Forma Condensed  Consolidated Financial  Statements"),  assuming such events
    occurred,  in the case of  Consolidated  Statements of  Operations  Data, on
    January 1, 1995 and, in the case of  Consolidated  Balance  Sheet  Data,  on
    September 30, 1996.
    
   
(2) As required by generally accepted accounting  principles ("GAAP"),  net loss
    is presented  before the accretion of preferred  stock and  preferred  stock
    dividends.  For the years ended 1994, 1995 and 1995 (pro forma) and the nine
    months ended September 30, 1995, 1996 and 1996 (pro forma), the accretion of
    preferred stock and preferred stock dividends are $.6 million, $1.3 million,
    $9.8 million, $1.0 million, $1.0 million and $7.3 million, respectively.

(3) Computed on the basis  described  for net loss per common share in Note 2 to
    the Consolidated Financial Statements.

(4) For purposes of the ratio of earnings to fixed charges,  earnings consist of
    earnings from  continuing  operations,  plus fixed  charges,  reduced by the
    amount  of  unamortized  interest  capitalized.  Fixed  charges  consist  of
    interest on all indebtedness  (including commitment fees and amortization of
    deferred financing costs) plus the portion of rent expense representing
     
                                       18
<PAGE>
   
    interest  (estimated to be one-third of such  expense).  For the years ended
    December 31, 1994 and 1995, and the nine months ended September 30, 1995 and
    1996,  earnings were  inadequate  to cover fixed  charges by $35.2  million,
    $28.2 million, $21.3 million and $19.8 million, respectively. On a pro forma
    basis assuming  consummation  of the  Transactions,  earnings would not have
    been  sufficient to cover fixed charges by $105.4  million and $70.5 million
    for the year ended December 31, 1995 and the nine months ended September 30,
    1996,  respectively.  A 0.5% increase in the assumed  interest  rates on the
    Notes  would  result in pro forma  deficiencies  of  earnings to cover fixed
    charges of approximately $107.1 million for the year ended December 31, 1995
    and $71.8 million for the nine months ended September 30, 1996.

(5) Backlog  represents  future  revenues under  contract.  See "Risk Factors --
    Risks Relating to Orion's Business -- Uncertainties Relating to Backlog."

(6) Points of  service  includes  installed  VSATs and  additional  transmission
    destinations (such as customer premises) that share a VSAT.

(7) "EBITDA"  represents  earnings before minority  interests,  interest income,
    interest  expense,  other expense (income),  income taxes,  depreciation and
    amortization.  EBITDA is  commonly  used in the  communications  industry to
    analyze  companies  on the  basis of  operating  performance,  leverage  and
    liquidity. EBITDA is not intended to represent cash flows for the period and
    should not be considered  as an  alternative  to cash flows from  operating,
    investing or financing activities as determined in accordance with generally
    accepted accounting  principles ("GAAP").  EBITDA is not a measurement under
    GAAP and may not be comparable to other  similarly  titled measures of other
    companies.  Other expense (income) includes gains on sale of equipment, less
    the write-off of costs  relating to the 1995 Financing (as defined below) of
    $3.4 million in the fourth quarter of 1995.

(8) Restricted  cash represents the estimated $72 million that will be placed in
    escrow on the closing date of the Notes  Offering to pre-fund the payment of
    the first six scheduled payments of interest on the Senior Notes (as defined
    below). The actual amount to be placed in escrow and reflected as restricted
    cash will  depend  on the  interest  rate on the  Senior  Notes  and  market
    interest rates on government securities on such closing date.

(9) Represents  amounts invested by Limited  Partners (net of syndication  costs
    related to the  investments),  adjusted for such Limited  Partners' share of
    net losses.  The  interests of the Limited  Partners will be acquired by the
    Company in the Exchange.
    
                                       19
<PAGE>
                                  RISK FACTORS

   An investment in Orion Newco Common Stock  pursuant to the Merger  involves a
high degree of risk. In  evaluating  the Merger  Transactions  and the Debenture
Investments,  Orion stockholders should carefully consider the following factors
as  well  as  other  matters  discussed  in  this  Proxy   Statement/Prospectus.
Statements  contained  in  this  Proxy  Statement/Prospectus  regarding  Orion's
expectations  with  respect to Orion 2 and Orion 3, related  financings,  future
operations  and  other  information,  which  can be  identified  by  the  use of
forward-looking  terminology,  such as "may,"  "will,"  "expect,"  "anticipate,"
"estimate" or "continue" or the negative thereof or other variations  thereon or
comparable terminology,  are forward-looking  statements and depend on a variety
of  factors,  including  those  set  forth in this  Risk  Factors  section.  See
"Forward-Looking   Statements."  The  discussions  set  forth  below  constitute
cautionary  statements  identifying  important  factors  with  respect  to  such
forward-looking  statements,  including  certain risks and  uncertainties,  that
could  cause   actual   results  to  differ   materially   from  those  in  such
forward-looking statements.  There can be no assurance that Orion's expectations
regarding some or all of these matters will be fulfilled.

         RISKS RELATING TO MERGER, EXCHANGE AND DEBENTURE INVESTMENTS

MERGER,  EXCHANGE AND DEBENTURE INVESTMENTS DEPENDENT ON ORION 1 CREDIT FACILITY
REFINANCING

   The Merger,  the Exchange and the Debenture  Investments  are  conditioned on
consummation  of the Orion 1 Credit  Facility  Refinancing.  Although  Orion has
engaged in discussions with prospective  underwriters  with respect to the Notes
Offering  Orion  is  pursuing  to  effectuate   the  Orion  1  Credit   Facility
Refinancing,  there can be no assurance that such financing will be consummated.
Orion has been advised by prospective  underwriters that the Notes Offering will
be conditioned  on, among other things,  concurrent  completion of the Exchange,
repayment of the Orion 1 Credit Facility with proceeds of the Notes Offering and
consummation of the OAP Acquisition and the Debenture Investments.  There can be
no  assurance  that the  conditions  to  closing  the  Orion 1  Credit  Facility
Refinancing,  and  accordingly  of the Merger,  the Exchange  and the  Debenture
Investments, will be met.

CERTAIN TERMS OF NOTES OFFERING NOT YET DETERMINED

   Completion  of  the  Exchange  is  conditioned,   among  other  things,  upon
completion of the Notes  Offering.  Certain pricing and other terms of the Notes
Offering are not known at the present time, including,  without limitation,  the
size of the Notes  Offering,  the interest rate for the Notes and the amount and
terms of the Orion  Newco  Common  Stock  warrants  to be  included in the Notes
Offering, and there can be no assurance that the terms of such transactions will
be  favorable  to Orion.  In  addition,  Orion  will be  subject  to a number of
restrictions  and  limitations  imposed by the indentures  pursuant to which the
Notes will be issued (the "Notes Indentures"). The Notes Indentures are expected
to contain,  among other limitations,  covenants which will restrict the ability
of the Company and its subsidiaries to: incur  additional  indebtedness;  create
liens;   engage  in   sale-leaseback   transactions;   pay   dividends  or  make
distributions  in respect  of their  capital  stock;  make  investments  or make
certain other  restricted  payments;  sell assets;  create  restrictions  on the
ability of restricted subsidiaries to make certain payments; issue or sell stock
of  restricted  subsidiaries;  enter  into  transactions  with  stockholders  or
affiliates;  and consolidate,  merge or sell all or  substantially  all of their
assets.  However,  these  limitations  will be subject to a number of  important
qualifications and exceptions.

RISKS IN IMPLEMENTATION OF MERGER, EXCHANGE AND DEBENTURE INVESTMENTS

   In order to implement the Merger, the Exchange and the Debenture Investments,
Orion will need to organize Orion Newco to be substantially  identical to Orion,
transfer all matters  relating to Orion's capital  structure to Orion Newco, and
merge with a subsidiary of Orion Newco.  These  transactions may require receipt
of a number of approvals or waivers,  including waivers of rights of the holders
of the Orion Senior  Preferred Stock to have their shares  repurchased by Orion,
consents or waivers under various  contracts  that may make a merger by Orion an
event of default  and  consents to  assignment  of various  contracts  regarding
registration rights applicable to Orion capital stock and other matters. There
                                       
                                       20
<PAGE>
can be no assurance that Orion will obtain all necessary approvals or waivers to
implement the Merger, the Exchange and the Debenture  Investments,  or regarding
the effect of failure to obtain such approvals or waivers.

   It is presently anticipated that each of the conditions to the Exchange would
have to be satisfied to consummate  the Exchange  (and  therefore the Merger and
the Debenture  Investments).  The Exchanging  Partners are not expected to waive
any of the conditions to their  obligations to consummate the Exchange,  and the
Orion parties do not intend to waive any of the conditions to their  obligations
to consummate the Exchange,  including, without limitation,  conditions relating
to financing, procurement agreements or otherwise.

SUBSTANTIAL CHANGE IN OWNERSHIP OF STOCK

   The beneficial ownership of Orion's Common Stock will change substantially as
a result of the  Exchange  and the  Debenture  Investments.  The  Exchange  will
involve the issuance of Orion Newco Series C Preferred  Stock  convertible as of
the  issuance  date into  approximately  6,970,740  shares of Orion Newco Common
Stock,  or  approximately  27%  of  the  shares  of  Orion  Newco  Common  Stock
outstanding  on a  fully  diluted  basis,  assuming  a  closing  of  the  Merger
Transactions as of January 30, 1997. The Debenture  Investments will involve the
issuance of $60 million of Debentures  convertible  as of the issuance date into
approximately  4,285,714  shares of Orion Newco Common Stock,  or  approximately
16.6% of the shares of Orion Newco Common Stock  outstanding  on a fully diluted
basis,  assuming a closing of the Debenture  Investments as of January 30, 1997.
See  "The  Merger,  the  Exchange  and the  Debenture  Investments  --  Security
Ownership of Certain Beneficial Owners Prior to and Following the Transactions."
Although  the  Company  is not aware of any intent by the  Exchanging  Partners,
British  Aerospace or Matra Marconi Space to seek to control the  management and
affairs of the Company,  there can be no assurance that they will not seek to do
so. In  addition,  the increase in  outstanding  capital  stock could  adversely
affect  prevailing  market prices,  as discussed  below under the caption "Risks
Relating to Capital  Stock -- Potential  Adverse  Effect of Shares  Eligible for
Future Sale."

RISKS RELATING TO HOLDING COMPANY STRUCTURE

   After the Merger  Transactions,  the Company will  conduct  almost all of its
operations  through its  subsidiaries.  Accordingly,  the primary  source of the
Company's cash will be dividends and other  distributions from its subsidiaries.
The subsidiaries'  ability to make  distributions to the Company will be subject
to their having  sufficient  funds from their operations  legally  available for
payment thereof which are not needed to fund their own  operations,  obligations
or business plans and which are not restricted by agreements  with the creditors
of these entities. If the Company's subsidiaries are unwilling or unable to make
distributions to the Company, the Company's growth may be inhibited. The Company
may not be able to obtain debt financing if it cannot compel the subsidiaries to
make distributions to service such debt financing or obtain upstream  guarantees
from its subsidiaries with respect to such financing.

RISKS RELATING TO ORION NEWCO SERIES C PREFERRED STOCK AND DEBENTURES

   The Company  expects to issue $122  million in Orion Newco Series C Preferred
Stock (assuming a closing of the Merger Transactions as of January 30, 1997) and
$60 million of  Debentures.  Certain rights granted by Orion Newco to holders of
the Orion Newco  Series C Preferred  Stock and the  Debentures  could  adversely
affect  Orion Newco or the rights of holders of Orion  Newco  Common  Stock.  In
particular,  the  holders  of Orion  Newco  Series C  Preferred  Stock will have
dividend rights, a liquidation  preference,  rights to vote with the Orion Newco
Common Stock as a single class,  rights to mandatory  redemption  after 25 years
and earlier  redemption at the option of Orion Newco,  the right to convert such
shares into Orion Newco Common Stock and registration  rights, as described more
fully under the caption "The Merger, the Exchange and the Debenture  Investments
- --  Description  of the Orion Newco  Series C Preferred  Stock."  Holders of the
Debentures will have the right to convert the Debentures into Orion Newco Common
Stock at $14.00 per share (subject to downward adjustment in certain events) and
the right to receive  dividends in Orion Newco  Common  Stock which,  in certain
circumstances,  could be valued at a price which is lower than the market  price
of such stock at the date of such dividends.  See "The Merger,  the Exchange and
the Debenture Investments -- The Debenture Investments."

                                       21
<PAGE>
                       RISKS RELATING TO ORION'S BUSINESS

LIMITED OPERATIONS; HISTORY OF LOSSES AND NEGATIVE EBITDA; EXPECTATION OF FUTURE
LOSSES

   From its inception in 1982 through  January 20, 1995,  when Orion 1 commenced
commercial operations, Orion was a development stage company. Accordingly, Orion
has limited experience operating its business.  Orion has experienced net losses
in each fiscal year since its inception,  including a net loss of  approximately
$26.9 million and negative  EBITDA of $15.4 million  during 1995, and a net loss
of $19.8 million during the nine months ended September 30, 1996. On a pro forma
basis, giving effect to the Transactions,  the Company would have had a net loss
of $103.2 million and $67.3 million for 1995 and the nine months ended September
30,  1996,  respectively.  The  increase  in net  loss on a pro  forma  basis is
associated  with the  depreciation  on the step up in the  basis of the  Orion 1
satellite and  amortization  of excess cost over fair value  resulting  from the
acquisition of the Limited  Partners'  partnership  interests in Orion Atlantic,
the net increase to interest  expense as a result of the  Transactions,  and the
elimination of minority  interest as a result of the Exchange.  See Notes to Pro
Forma  Condensed  Consolidated  Statements  of  Operations  for the  year  ended
December  31,  1995  and for the nine  months  ended  September  30,  1996.  The
implementation  of  Orion's  business  plan  regarding  Orion 2 and Orion 3 will
require substantial additional capital for the construction,  launch, insurance,
financing and start-up costs of those satellites. A substantial portion of these
costs may be financed  with  indebtedness,  which would  substantially  increase
interest  costs.  The Company's  negative cash flow (after  payments for capital
expenditures and interest) has been substantial and net losses and negative cash
flows (after  payments for capital  expenditures  and  interest) are expected to
increase over the next few years.

NEED FOR SUBSTANTIAL ADDITIONAL CAPITAL

   The Company  will need a  substantial  amount of capital  over the next three
years (and  possibly  thereafter)  to fund the costs of Orion 2 and Orion 3, the
purchase  of VSATs and other  capital  expenditures  and to make  various  other
payments,  such as  principal  and  interest  payments  with respect to the TT&C
Financing (as defined below), the Notes and any indebtedness incurred to finance
Orion 2 or Orion 3. The  Company's  cash flows will be  inadequate  to cover its
cash needs and the Company will seek financing from outside sources.  Sources of
additional capital may include public or private debt or equity financings.  The
Company is often involved in discussions  or  negotiations  with respect to such
potential  financings  and,  because  of  its  substantial  capital  needs,  may
consummate  any  such   financings  at  any  time.  The  Company  has  commenced
construction  of  Orion  3 and  intends  to  commence  construction  of  Orion 2
immediately after  consummation of the Notes Offering,  despite the fact that it
does not have any commitment  from any outside source to provide such financing.
If the Company is unable to obtain financing from outside sources in the amounts
and at the times needed,  it could forfeit  payments made on Orion 2 and Orion 3
and its rights to Orion 2 and Orion 3 under the Orion 2 Satellite  Contract  and
Orion 3 Satellite  Contract.  Such a  forfeiture  would have a material  adverse
effect on the Company's  ability to make payments on its indebtedness and on the
value of the Orion Newco Common Stock.

   
   Expected  payments  prior to launch under the Orion 2 Satellite  Contract and
Orion 3  Satellite  Contract  and for launch  insurance  for Orion 2 and Orion 3
aggregate approximately $500 million. Of this amount, $3 million was paid in the
fourth quarter of 1996, and Orion is required to make payments of  approximately
$98 million, $350 million and $50 million in 1997, 1998 and 1999,  respectively.
These  amounts  include  the  Company's  estimate  regarding  the cost of launch
insurance (but not in-orbit  insurance,  which the Company  presently  estimates
will cost approximately $5 million to $6 million per annum per satellite), which
estimate is based upon industry  figures but not upon discussions with potential
insurers or any commitment to provide  insurance.  The Company's actual payments
could be  substantially  higher  due to any change  orders  for the  satellites,
higher than expected insurance rates, delays and other factors. In addition, the
Company expects to expend approximately $22 million, $30 million and $34 million
on VSATs and other capital  expenditures in 1997,  1998 and 1999,  respectively.
However,  there can be no assurance that these amounts will not be substantially
higher.  The Company believes the costs of VSATs and other capital  expenditures
can be financed through capital leases or other secured financing  arrangements.
However, the Company has not engaged in material discussions with potential     
                                       
                                       22
<PAGE>
   
lenders and there can be no assurance that such  financing can be obtained.  The
Company  also  expects to incur an  aggregate  of  approximately  $40 million of
start-up losses and financing costs in connection with Orion 2 and Orion 3.
    

   Under the Orion 1 Satellite  Contract,  the contractor is entitled to receive
incentive  payments  based  upon  the  performance  of Orion 1 in  orbit.  These
incentive payments could reach an aggregate of approximately $44 million through
2007,  if the  transponders  on Orion 1 continue to operate in  accordance  with
specification   during  that  period.  As  of  September  30,  1996,  Orion  had
obligations with a present value of approximately  $21.7 million with respect to
incentive  payments.   Orion  will  pay  $13  million  in  satellite  incentives
concurrently  with the closing of the Notes Offering,  of which $10 million will
be  re-invested  in Orion in the  Matra  Marconi  Investment.  Under the Orion 2
Satellite Contract, Orion is obligated to pay $25,000 per day that the satellite
is delivered prior to the scheduled delivery date.

   The  foregoing  estimates  do not  include  any  amounts  for other  possible
financing  requirements.  The  Company  may from time to time  enter  into joint
ventures and make acquisitions of complementary  businesses and is often engaged
in discussions or negotiations  with regard to such potential joint ventures and
acquisitions.  Such joint  ventures or  acquisitions  would need to be financed,
which would  increase the Company's need for  additional  capital.  In addition,
Orion intends to replace  Orion 1 at the end of its useful life  (expected to be
in October 2005). Such replacement likely will require  additional  financing if
the cash flow from Orion's  operations  is not  sufficient to fund a replacement
satellite.

   
   Orion Newco's ability to raise public equity  financing may be limited by the
   -----------------------------------------------------------------------------
registration rights it has granted to certain investors.  See "Risks Relating to
- --------------------------------------------------------------------------------
Capital Stock -- Potential  Adverse  Effect of Shares  Eligible for Future Sale"
- --------------------------------------------------------------------------------
below.
- -----
    

SUBSTANTIAL LEVERAGE; SECURED INDEBTEDNESS

   As of September 30, 1996, after giving pro forma effect to the  Transactions,
Orion would have had approximately $426 million of long-term  indebtedness,  and
will be highly leveraged. The accretion of original issue discount on the Senior
Discount  Notes  (as  defined  below)  will   substantially   increase   Orion's
liabilities. The Company also expects to incur substantial additional amounts of
indebtedness.  The Company will deposit  approximately  $72 million in escrow to
pre-fund  the first six  scheduled  payments of interest on the Senior Notes (as
defined below).  However,  the Company  ultimately will need to service the cash
interest  expense  on a  very  substantial  amount  of  indebtedness  with  cash
generated  by its  operations.  For 1995 and the  three  and nine  months  ended
September 30, 1996, the Company had EBITDA of $(15.4) million,  $1.7 million and
$0.1  million  and, on a pro forma  basis,  giving  effect to the  Transactions,
interest  costs of $50.6  million and $39.5 million for 1995 and the nine months
ended   September  30,  1996,   respectively.   Interest   costs  will  increase
substantially if, as expected,  the Company incurs additional  indebtedness,  as
described above under the caption "Need for Substantial Additional Capital." The
Company  does not have a revolving  credit  facility or other  source of readily
available capital.

   The level of the Company's  indebtedness could have important consequences to
the Company and its  stockholders,  including the following:  (i) the ability of
the  Company  to obtain  any  necessary  financing  in the  future  for  capital
expenditures,  working capital,  debt service requirements or other purposes may
be  limited;  (ii)  a  substantial  portion  of the  Company's  cash  flow  from
operations,  if any,  must be  dedicated  to the  payment  of  principal  of and
interest on its indebtedness and other obligations and will not be available for
use in the Company's  business;  (iii) the Company's level of indebtedness could
limit its  flexibility in planning for, or reacting to changes in, its business;
(iv) the Company  will be more highly  leveraged  than some of its  competitors,
which may place it at a competitive  disadvantage;  and (v) the  Company's  high
degree  of  indebtedness  will  make it more  vulnerable  to a  default  and the
consequences  thereof (such as bankruptcy workout) in the event of a downturn in
its business.  See "Management's  Discussion and Analysis of Financial Condition
and Results of Operations of Orion -- Liquidity and Capital Resources -- Current
Funding Requirements."

                                       23
<PAGE>
RISKS OF SATELLITE LOSS OR REDUCED PERFORMANCE

   Satellite Loss or Reduced Performance.  Satellites are subject to significant
risks,  including launch failure,  damage that impairs  commercial  performance,
failure to achieve correct orbital  placement  during launch,  loss of fuel that
reduces satellite life, and satellite in-orbit risks.  Although Orion 1 has been
successfully  launched  and  is in  commercial  operation,  and  although  Orion
maintains  satellite in-orbit insurance on Orion 1, any loss in orbit or reduced
performance  of Orion 1 would  have a  material  adverse  effect  on  Orion.  In
addition,  no assurance  can be given that the launch of Orion 2 or Orion 3 will
be successful.  Although various sources of data permit  differing  conclusions,
Orion is aware of  sources  indicating  that the  historical  loss  rate for all
commercial geosynchronous satellite launches may be as high as 15%. Launch risks
vary based upon the launch  vehicle used.  The Delta III launcher to be used for
Orion 3 is new and has no significant launch history.  Even though the Delta III
is based upon earlier Delta launch  vehicles,  the new technology  used in Delta
III could affect its launch success rate.

   Orion may have to change launch vehicles if, for example, one of its selected
vehicles  experiences a launch failure with respect to another satellite.  Orion
intends to order  certain  long lead time parts in order to reduce the amount of
time needed to obtain one replacement satellite. However, an unsuccessful launch
of Orion 2 or Orion 3 would  involve a delay in revenues  for at least one year,
and perhaps  substantially  longer. Any loss or delay of revenue from any of the
Company's  satellites  would have a material  adverse  effect on its  ability to
service its indebtedness and the value of the Orion Newco Common Stock.

   In November 1995, one of Orion 1's components supporting nine transponders of
dedicated  capacity  serving  the  European  portion  of the  Orion 1  footprint
experienced  an anomaly  that  resulted  in a  temporary  service  interruption,
lasting  approximately  two hours.  Full service to all affected  customers  was
restored  using  redundant  equipment  on  the  satellite.   These  transponders
currently generate a majority of Orion's revenues.  Orion believes, based on the
data  received  to date by  Orion  from  its own  investigations  and  from  the
manufacturer,  and  based  upon  advice  from  Orion's  independent  engineering
consultant,  Telesat Canada, that because the redundant component is functioning
fully in accordance with  specifications  and the performance  record of similar
components is strong,  the anomalous behavior is unlikely to affect the expected
performance of the satellite over its useful life.  Furthermore,  there has been
no further effect on Orion's ability to provide services to customers.  However,
in the  event  that  the  currently  operating  component  fails,  Orion 1 would
experience a significant  loss of usable  capacity.  In such event,  while Orion
would be entitled to insurance  proceeds of approximately  $47 million and could
lease  replacement  capacity  and  function as a reseller  with  respect to such
capacity (at  substantially  reduced gross margins),  the loss of capacity would
have a material  adverse  effect on the  Company,  on its ability to service its
indebtedness  and the value of the Orion Newco Common  Stock.  See  "Information
About Orion's Business --  Implementation of the Orion Satellite System -- Orion
1."

   At the time of Orion's 1 delivery  from its  manufacturer,  one of the six 36
MHz  transponders  covering the United  States was not  performing in accordance
with contract  specifications  based on then-available  data. To date, Orion has
not used such transponder to provide services under any commercial contract, and
there can be no  assurance  that such  transponder  will ever be used.  Although
Orion  settled  the  matter  with the  manufacturer  for a  one-time  refund  of
approximately  $2.75  million  and monthly  payments of $7,000,  there can be no
assurance that such payments  adequately  compensated Orion for the loss of such
transponder.

   Limited Insurance for Satellite Launch and Operation.  The in-orbit insurance
of Orion 1 and the launch and  in-orbit  insurance  for Orion 2 and Orion 3 will
not protect the Company against business interruption, loss or delay of revenues
and similar losses and may not fully reimburse the Company for its expenditures.
In  addition,  such  insurance  includes or can be  expected to include  certain
contract terms, exclusions,  deductibles and material change conditions that are
customary in the industry.  Accordingly,  an  unsuccessful  launch of Orion 2 or
Orion  3 or any  significant  loss of  performance  with  respect  to any of its
satellites  would have a material  adverse effect on Orion,  its ability to make
payments  on its  indebtedness  and the value of the Orion Newco  Common  Stock.
Although  Orion intends to procure  insurance for the  construction,  launch and
insurance costs of Orion 2 and Orion 3, Orion has

                                       24
<PAGE>
not  obtained any  commitment  from  insurance  underwriters  to provide  launch
insurance for Orion 2 or Orion 3. There can be no assurance  that such insurance
will  be  available  or that  the  price  of such  insurance  or the  terms  and
exclusions in the actual  insurance  policy will be favorable to the Company.  A
failure of one of the launch  vehicles  selected by Orion prior to the launch of
Orion 2 or Orion 3 could substantially increase the cost of launch insurance for
Orion. See "Information About Orion's Business -- Insurance."

   Limited Life of Satellites. While Orion 1 is expected to have an orbital life
of approximately  10.7 years (through October 2005), and Orion 2 and Orion 3 are
expected  to  have  orbital  lives  of  approximately  13  years  and 15  years,
respectively,  there  can be no  assurance  as to the  actual  longevity  of the
satellites.  A number of factors will affect the useful life of each  satellite,
including the rate of fuel  consumption in achieving  correct orbital  placement
during  launch,  the  quality  of its  construction  and the  durability  of its
component  parts.   There  is  a  significant   possibility  that  one  or  more
transponders   on  a  satellite  may  cease  to  function  in  accordance   with
specifications  during its estimated  useful life and there is no assurance that
service could be restored through  redundant  transponders.  In addition,  while
Orion plans to replace each  satellite at the end of its useful life,  there can
be no assurance that the required  financing and  regulatory  approvals to do so
will be available.

LAUNCH OF ORION 2 AND ORION 3 SUBJECT TO SIGNIFICANT UNCERTAINTIES

   Cost Uncertainties.  Based on the current designs of and current construction
schedules  for  Orion 2 and  Orion 3, the  total  costs of Orion 2 and  Orion 3,
including construction,  launch, launch insurance,  financing costs and start-up
expenses,  are  presently  estimated to be  approximately  $265 million and $275
million, respectively.  These costs may increase as a result of changes that may
occur  during the  construction  of the  satellites  or if the cost of insurance
exceeds the Company's  expectations.  See "Information About Orion's Business --
Implementation  of the Orion  Satellite  System." There can be no assurance that
the actual costs of these  satellites will not be materially  greater than these
estimates.

   Substantial  Financing  Requirements.  Completion of Orion 2 and Orion 3 will
require substantial  additional financing beyond the funds expected to be raised
in the Notes  Offering and the British  Aerospace  Investment.  Failure to raise
such financing  would have a material  adverse  effect on Orion,  its ability to
make payments on its indebtedness and the value of the Orion Newco Common Stock,
as  discussed  in more  detail  above under the  caption  "Need for  Substantial
Additional Capital."

   Timing  Uncertainties.  Orion presently plans to launch Orion 2 in the second
quarter of 1999 and plans to launch Orion 3 in the fourth quarter of 1998, based
upon the construction and launch schedules set forth in the satellite contracts.
To meet these  schedules,  Orion must raise the financing needed for payments to
the satellite manufacturers,  receive certain regulatory approvals, finalize the
satellite  designs  and  take  other  necessary  steps.   Failure  to  meet  the
construction and launch schedules could increase the cost of Orion 2 or Orion 3,
requiring additional  financing,  as described above under the caption "Need for
Substantial Additional Capital." Although the Orion 2 Satellite Contract and the
Orion 3 Satellite  Contract are  fixed-price  contracts  with firm schedules for
construction,  delivery and launch,  there can be no assurance that increases in
costs due to change  orders or delay  will not  occur.  See  "Information  About
Orion's Business -- Implementation of the Orion Satellite  System." There can be
no assurance that the launch of Orion 2 or Orion 3 will take place as scheduled.
Delays in launching  satellites are quite common, and a significant delay in the
delivery  or launch of Orion 2 or Orion 3 also  would  have a  material  adverse
effect on Orion's  marketing plan for such  satellites,  its ability to generate
revenue  and service its  indebtedness  and the value of the Orion Newco  Common
Stock.

   
   Risks of  Proceeding  With  Construction  Prior to Obtaining  all  Regulatory
Approvals for Orion 2 and Orion 3. Orion has commenced  construction  of Orion 3
and will  commence  construction  of Orion 2 prior to completion of the required
consultation with INTELSAT and EUTELSAT, receipt of final authority from the FCC
(in the case of Orion 2) and completion of the  International  Telecommunication
Union  ("ITU")  coordination  process.  Failure  to  obtain  one more  necessary
approvals in a timely manner would likely have a material  adverse effect on the
Company. See "Approvals Needed; Regulation of Industry" below.     

                                       25
<PAGE>
RISKS  RELATING  TO  POTENTIAL  LACK OF MARKET  ACCEPTANCE  AND  DEMAND;  GROUND
OPERATIONS

   
   Orion's  success  will depend in part on the  continued  growth in demand for
international  private network  services,  which to date have not been a primary
focus of satellite  companies,  and on Orion's  ability to market such  services
effectively.  Marketing will be critical to Orion's success.  However, Orion has
limited  experience in marketing,  having  commenced full commercial  operations
only in 1995.  Orion's  marketing  program  until  recently  consisted of direct
sales,  using a U.S.-based sales force,  and indirect sales channels,  including
Limited Partner sales representatives, for sales in Europe. During 1996, certain
of Orion's  indirect  sales  channels in Europe did not meet  expectations,  and
Orion is seeking to supplement its sales in Europe by  significantly  increasing
its direct sales  capabilities in Europe,  particularly with respect to sales of
private network  services.  However,  there can be no assurance that this effort
will be successful.  Sales of Orion's  services  generally  involve a long-term,
complex  sales  process,  and new  contract  bookings  will vary from quarter to
quarter.  In addition,  as an early provider of  international  network services
using  VSATs,  Orion  is  subject  to  the  uncertainties  associated  with  the
development of new services, including uncertainties regarding customer interest
in and acceptance of higher data speed  communications,  the need to develop and
convince  customers  of the  attractiveness  of new  applications,  and customer
acceptance of the ability of Orion (as a new market entrant) to provide service.
In addition, Orion's operations will continue to depend significantly on Orion's
ability to provide ground  operations for private network  services using ground
operators throughout the footprint of Orion's satellites.  In the event that its
network of ground  operators is not  maintained and expanded or fails to perform
as expected, Orion's ability to offer private network services will be impaired.
See  "Information  About Orion's  Business -- Network  Operations;  Local Ground
Operators."     

RISKS CONCERNING ABILITY TO MANAGE GROWTH

   The Company's future  performance  will depend,  in part, upon its ability to
manage its growth  effectively,  which will  require it to continue to implement
and improve its marketing,  operating,  financial and accounting  systems and to
expand, train and manage its employee base and manage its relationships with its
local  ground  operators.  For  example,  Orion is in the  process of seeking to
integrate  a  significant  number of newly hired  direct  sales  personnel,  and
expects the process to continue as it seeks to increase  its sales force  during
1997.  Furthermore,  the Company may from time to time enter into joint ventures
and acquire  complementary  businesses  and is often engaged in  discussions  or
negotiations with regard to such potential joint ventures and acquisitions. Such
joint  ventures and acquired  businesses  would need to be  integrated  with the
Company,  which  would  place an  additional  burden on the  Company's  internal
systems and its ability to manage its employees and its  relationships  with its
local ground operators. In addition, the Company's ability to attract new orders
is subject to  substantial  variations  from quarter to quarter.  If the Company
fails  either to expand in  accordance  with its plans or to manage  its  growth
effectively,  there could be a material adverse effect on its business,  growth,
financial  condition  and  results of  operations,  its  ability to service  its
indebtedness and the value of the Orion Newco Common Stock.

POTENTIAL ADVERSE EFFECTS OF COMPETITION

   
   The  international  telecommunications  industry  is highly  competitive.  In
providing  international   telecommunications   services,  Orion  competes  with
established  satellite and other transmission  facilities  providers,  including
INTELSAT, EUTELSAT, PanAmSat and consortia of major telephone carriers operating
undersea  fiber  optic  cables.   In  addition,   Orion  competes  with  certain
established  telephone  carriers,  such as AT&T, MCI,  Sprint,  British Telecom,
Cable & Wireless, Deutsche Telekom, France Telecom and Kokusai Denshin Denwa, as
well as resellers of satellite capacity, such as companies similar to Impsat, in
providing  private network  communications  services.  Many of these competitors
have  significant  competitive  advantages,   including  long-standing  customer
relationships,  close ties with regulatory authorities, control over connections
to local telephone lines and the ability to subsidize  competitive services with
revenues from services they provide as a dominant or monopoly  carrier,  and are
substantially  larger  than  Orion  and have  financial  resources,  experience,
marketing  capabilities and name recognition that are substantially greater than
those of Orion.  The Company  believes  that  competition  in emerging  markets,
particularly  with respect to private network  services, will intensify as domi-
    

                                       26
<PAGE>
nant and monopoly long distance providers adapt to a competitive environment and
large  carriers  increase  their  presence in these  markets.  The Company  also
believes that  competition  in more  developed  markets will  intensify as large
carriers consolidate,  enhance their international  alliances and increase their
focus on private network services.  For example,  the recently  announced merger
involving MCI and British Telecom may substantially  increase the ability of the
resulting  businesses to provide  trans-Atlantic  private network services.  The
ability of Orion to  compete  with these  organizations  will  depend in part on
Orion's  ability to price its services at a significant  discount to terrestrial
service providers,  its level of customer support and service, and the technical
advantages of its systems.

   The services  provided by the Company have been subject to decreasing  prices
over recent  years and this  pricing  pressure is expected to continue  (and may
accelerate) for the foreseeable  future.  Orion will need to increase its volume
of sales in order to compensate for such price  reductions.  Orion believes that
customers  will  increase  the data speeds in their  communications  networks to
support new applications, and that such upgrading of customer networks will lead
to  increased  revenues  that will  mitigate  the  effect  of price  reductions.
However,  there can be no assurance that this will occur.  In addition,  a large
portion of satellite capacity globally is currently used for video distribution.
As an increasing  portion of satellite  capacity is used for  providing  private
network  services,  prices for these  services may decline.  Compressed  digital
video ("CDV"), which substantially  increases transmission capacity per channel,
is beginning to be used for video  distribution.  As CDV becomes more prevalent,
the supply of effective video capacity could increase significantly, which could
result in lower prices.

   The Company is aware of a substantial  number of new  satellites  that are in
construction  or in the planning  stages.  Most of these  satellites  will cover
areas within the footprint of Orion 1 and/or the proposed  footprints of Orion 2
and Orion 3. As these new  satellites  (other than  replacement  satellites  not
significantly larger than the ones they replace) commence operations,  they will
substantially increase the capacity available for the provision of services that
compete with the Company's  services.  After a satellite  has been  successfully
delivered in orbit,  the variable cost of  transmitting  additional data via the
satellite is limited.  Accordingly,  absent a corresponding  increase in demand,
this new  capacity  can be expected to result in  significant  additional  price
reductions.  Continued price  reductions could have a material adverse effect on
Orion's ability to service its  indebtedness and on the value of the Orion Newco
Common Stock. See "Information About Orion's Business -- Competition."

APPROVALS NEEDED; REGULATION OF INDUSTRY

   Telecommunications   Regulatory   Policy.   Orion  is  subject  to  the  U.S.
Communications  Act  of  1934,  as  amended  (the  "Communications   Act"),  and
regulation  by the FCC (and,  to a limited  extent,  by the U.S.  Department  of
Commerce) and by the national and local governments of other countries.  The FCC
regulates terms and conditions of communications services, including among other
things changes in control or assignment of licenses.  The business  prospects of
Orion  could be  adversely  affected by the  adoption  of new laws,  policies or
regulations,  or changes in the  interpretation or application of existing laws,
policies  or  regulations,  that modify the present  regulatory  environment  or
conditions of the licenses granted by the FCC to Orion.

   Additional  Regulatory  Approvals Needed. The launch and operation of Orion 2
and Orion 3 will require a number of additional regulatory approvals,  including
the  following:  (i)  approvals  of the FCC  (in the  case  of  Orion  2);  (ii)
completion of successful  consultations  with INTELSAT and, in the case of Orion
2, with EUTELSAT;  (iii)  satellite  "landing"  rights in countries that are not
INTELSAT  signatories or that require additional  approvals to provide satellite
or VSAT services;  and (iv) other regulatory approvals.  Obtaining the necessary
licenses and approvals  involves  significant  time and expense,  and receipt of
such   licenses  and  approvals   cannot  be  assured.   Although  the  FCC  has
conditionally  authorized  the  construction,  launch and  operation  of Orion 2
(subject to  completion  of an INTELSAT  consultation  and  required  showing of
ability to finance the  construction,  launch and  operation for one year of the
satellite,  which  requirements  generally  must  be  satisfied  for  final  FCC
authorization of all FCC satellite  licenses),  and Orion will apply for certain
other approvals for Orion 2 and Orion 3, the FCC  authorization  for Orion 2 has
not become final (since Orion has not yet satisfied the  conditions) and most of
the other requisite approvals have not yet been obtained. Failure to obtain such
approvals

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<PAGE>
would have a material  adverse effect on Orion and on its ability to service its
indebtedness  and the value of the Orion Newco Common Stock. In addition,  Orion
is required to obtain approvals from numerous  national and local authorities in
the ordinary course of its business in connection with most arrangements for the
provision of services. Within Orion 1's footprint, such approvals generally have
not been  difficult for Orion to obtain in a timely  manner,  but the failure to
obtain  particular  approvals  has  delayed,  and in the future  may delay,  the
provision  of  services  by Orion.  The Orion 1 license  from the FCC expires in
January 2005. Although Orion has no reason to believe that its licenses will not
be renewed (or new licenses  obtained) at the  expiration  of the license  term,
there can be no  assurance of renewal.  In  addition,  Orion will need to comply
with the national laws of each country in which it provides services.  Laws with
respect to satellite  services are currently  unclear in certain  jurisdictions,
particularly  within the Orion 3 footprint.  In certain of these  jurisdictions,
satellite  services may only be provided via  domestic  satellites.  The Company
believes that certain of these restrictions may change and that it can structure
its operations to comply with the remaining restrictions.  However, there can be
no  assurance  in this  regard.  See  "Information  About  Orion's  Business  --
Regulation."

   ITU Coordination  Process. An international  treaty to which the U.S. and the
Republic of the Marshall  Islands (through which the Company has applied for the
Orion 3 orbital slot) are parties requires ITU coordination of satellite orbital
slots.  Various  non-U.S.  governments or  telecommunications  authorities  have
commenced  coordination  procedures  pursuant to ITU  regulations  for  proposed
satellites  at  orbital  locations  and in  frequency  bands  that  are in close
proximity to those proposed for Orion 2 and Orion 3. Existing satellites and any
proposed  satellites  that  are  launched  prior  to  Orion  2 and  Orion 3 will
effectively  have priority  over Orion's  satellites.  Orion's  proposed use for
Orion 2 and Orion 3 conflicts  to some  extent  with the use or proposed  use of
certain  existing  or proposed  satellites.  While  Orion  believes  that it can
successfully  coordinate  the use of the orbital  locations and frequency  bands
proposed  for Orion 2 and Orion 3, there can be no assurance  that  coordination
will be achieved.  The Company has  commenced  construction  of Orion 3 and will
commence  construction  of Orion 2 promptly  following  completion  of the Notes
Offering, which will be prior to completion of ITU coordination. There can be no
assurance that ITU coordination will be completed.  In the event that successful
coordination  cannot be achieved,  Orion may have to modify the satellite design
for  Orion 2 or  Orion 3 in  order  to  minimize  the  extent  of any  potential
interference  with other proposed  satellites  using those orbital  locations or
frequency  bands.  Any such  modifications  could increase the cost or delay the
launch of the satellites (if significant  changes to the satellite are required)
and may result in limitations on the use of one or more  transponders on Orion 2
or Orion 3,  which  could  affect  the  amount  of  revenue  realized  from such
transponders. If interference occurs with satellites that are in close proximity
to Orion 2 or Orion 3, or with  satellites that are  subsequently  launched into
locations in close proximity before  completion of ITU coordination  procedures,
such  interference  would  have an  adverse  effect on the  proposed  use of the
satellites  and on Orion's  business  and  financial  performance.  Orion cannot
predict the extent of any adverse effect on Orion from any such occurrences. See
"Information About Orion's Business -- Orbital Slots."

UNCERTAINTIES RELATING TO BACKLOG

   The Company's  current backlog consists of a mix of large and small contracts
for private  communications  networks  and  transmission  capacity for video and
other satellite transmission services with a variety of customers. Although many
of the  Company's  customers,  especially  customers  under large and  long-term
contracts,  are large corporations with substantial  financial resources,  other
contracts are with companies that may be subject to business or financial  risks
affecting their credit worthiness.  If customers are unable or unwilling to make
required  payments,  the Company  may be required to reduce its backlog  figures
(which would result in a reduction in future revenues of the Company),  and such
reductions  could be  substantial.  In the second  quarter of 1996,  the Company
determined  that one large customer under a long-term  contract  (accounting for
backlog of approximately $19.9 million) was not likely to raise the financing to
commence its service in the near future,  and  accordingly the Company no longer
considers such contract part of its backlog. Also in the second quarter of 1996,
the Company removed from its backlog a contract with a customer  (accounting for
backlog of approximately $4.5 million) which had ceased paying for the Company's
services. In the fourth quarter of 1996, the

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<PAGE>
Company  removed $10.4 million from its backlog related to contracts under which
customers failed to use the contracted service or failed to make timely payment.
Orion presently  anticipates  that at least $86.4 million of its $123 million in
backlog (as of September 30, 1996, after pro forma adjustments for the Exchange)
will be realized after 1997. The Company's  contracts  commence and terminate on
fixed dates. If the Company is delayed in commencing service or does not provide
the required service under any particular contract,  as it has occasionally done
in the  past,  it may not be able to  recognize  all the  revenue  it  initially
includes in backlog  under that  contract.  In  addition,  the  current  backlog
contains  some  contracts  for the useful life of Orion 1; if the useful life of
Orion 1 is shorter  than  expected,  some portion of backlog may not be realized
unless  services  satisfactory  to the  customer  can be provided  over  another
satellite.

TECHNOLOGICAL CHANGES

   Although  Orion  believes  that Orion 1 does employ,  and Orion 2 and Orion 3
will employ, advanced technologies, the telecommunications industry continues to
experience  substantial  technological  changes. The Company believes that there
are numerous  telecommunications  companies that are seeking ways to improve the
data transmission capacity of the existing terrestrial infrastructure. There can
be no assurance  that such changes will not  adversely  affect the  prospects or
proposed operations or expenses of Orion.

RISKS OF CONDUCTING INTERNATIONAL BUSINESS

   The Company's  international  service contracts are generally  denominated in
U.S.  dollars,  but it is possible that the portion of contracts  denominated in
non-U.S.  currencies will increase over time. The vast majority of the Company's
costs (including interest and principal of the Notes, other indebtedness and the
costs  for  VSATs,  Orion  2 and  Orion  3) are  denominated  in  U.S.  dollars.
Accordingly,  an  increase  in the  value  of U.S.  dollars  relative  to  other
currencies could have an adverse effect on the Company. International operations
are also  subject to certain  risks such as  changes  in  domestic  and  foreign
government regulations and telecommunication standards,  licensing requirements,
tariffs  or  taxes  and  other  trade   barriers  and   political  and  economic
instability.

DEPENDENCE OF ORION ON KEY PERSONNEL

   Orion's  business is dependent on its executive and other  officers and other
key personnel.  Orion presently does not have employment  contracts with, or key
man life insurance covering,  such key officers or other personnel.  The loss of
key officers or personnel could have an adverse effect on Orion. See "Management
of Orion and Orion Newco."

                         RISKS RELATING TO CAPITAL STOCK

CONTROL OF ORION NEWCO BY PRINCIPAL STOCKHOLDERS

   
   Executive  officers,  directors  and their  affiliates  are  expected  to own
beneficially  approximately 8.1 million shares or approximately 40% of the Orion
Newco voting stock that will be outstanding after the Transactions (12.0 million
shares  or  approximately  46% of the  Orion  Newco  voting  stock  that will be
outstanding after the Transactions on a fully diluted basis), assuming a closing
of the Transactions as of January 30, 1997. As a result of their stock ownership
and, in the case of stockholders with  representation on the Board of Directors,
the incumbency of directors affiliated with them, such stockholders are and will
continue to be in a position to elect the Board of Directors and thereby control
the affairs and management of Orion Newco and Orion.     

RISKS RELATING TO ORION SENIOR PREFERRED STOCK

   The Company has outstanding  approximately  $15.8 million  (including accrued
dividends)  of Orion  Series A Preferred  Stock and  approximately  $4.7 million
(including  accrued  dividends) of Orion Series B Preferred  Stock.  Because the
rights of the holders of the Orion Newco Senior Preferred Stock, includ-

                                       29
<PAGE>
   
ing mandatory  redemption or repurchase rights, will be substantially  identical
to the rights of the holders of the Orion Senior  Preferred  Stock,  such rights
similarly  could  adversely  affect  Orion Newco or the rights of holders of the
Orion Newco Common Stock. Although Orion expects the holders of the Orion Senior
Preferred  Stock to agree  not to  exercise  any such  mandatory  redemption  or
repurchase  rights under the Orion Newco Senior  Preferred Stock while the Notes
or the Debentures are outstanding,  such holders have the right to require Orion
to  repurchase  the  shares  of Orion  Common  Stock  received  as a  result  of
conversion of the Orion Senior Preferred Stock upon, among other things, certain
mergers, changes of control or sales of substantially all the assets of Orion at
the pro rata interest of the holders of such stock in the consideration received
or,  in the  case of  certain  fundamental  changes,  fair  market  value;  and,
beginning  in June  1999,  such  holders  have  the  right to  require  Orion to
repurchase  Orion Senior  Preferred  Stock (and any Orion Common Stock  received
upon the  conversion  thereof)  at the fair  market  value (in the case of Orion
Common Stock) or liquidation  value,  including accrued and unpaid dividends (in
the case of Orion Senior Preferred Stock). In addition,  the documents  relating
to the Orion Senior  Preferred  Stock  impose  certain  covenants on Orion,  and
failure to comply with those  covenants  could have an adverse  effect on Orion.
See  "Description  of Orion Newco Capital Stock -- Orion Newco Senior  Preferred
Stock."     

LIMITATIONS ON DIVIDENDS ON ORION AND ORION NEWCO COMMON STOCK

   Orion has never paid any cash  dividends  on its Orion  Common Stock and does
not  anticipate  paying (or that Orion  Newco would pay) cash  dividends  in the
foreseeable  future.  Orion is not permitted to pay cash  dividends on the Orion
Common Stock as long as the Orion Senior Preferred Stock is outstanding, subject
to certain limited  exceptions.  The Notes Indentures will effectively  prohibit
the  payment  of  cash  dividends  on the  Orion  Newco  Common  Stock  for  the
foreseeable future. See "Price Range of Orion Common Stock and Dividend Policy."

POTENTIAL ADVERSE EFFECT OF SHARES ELIGIBLE FOR FUTURE SALE

   
   Upon completion of the Transactions, there will be approximately 25.9 million
shares  of Orion  Newco  Common  Stock  outstanding  on a fully  diluted  basis,
assuming a closing of the  Transactions as of January 30, 1997.  Orion's current
stockholders will initially hold approximately 14.5 million of these shares, all
of which will be freely transferable without restriction or further registration
under the Securities Act, other than the 5.5 million shares held by "affiliates"
of the Company,  as that term is defined  under the  Securities  Act. The shares
held by  affiliates  are expected to be eligible  for sale  pursuant to Rule 144
under the Securities Act. The Exchanging Partners,  as owners of the Orion Newco
Series C Preferred  Stock,  and British  Aerospace and Matra Marconi  Space,  as
owners of the Debentures,  will own the remaining 11.4 million of such shares of
Orion  Newco  Common  Stock,  which will be  issuable  upon  conversion  of such
securities.  All of such  remaining  shares  will be  deemed  to be  "restricted
securities"  as that  term is  defined  in Rule  144.  However,  the  Exchanging
Partners,  British  Aerospace and Matra  Marconi  Space will be granted  certain
shelf,  demand and  "piggyback"  registration  rights with  respect to the Orion
Newco Common Stock issuable to them upon  conversion,  pursuant to which (in the
case of the  Exchanging  Partners)  the Company  will be required to prepare and
cause to be filed, as soon as practicable after 180 days following  consummation
of the Merger Transactions,  a "shelf"  registration  statement which will cover
the  registration  of certain  Eligible  Registrable  Securities  (as defined to
include  approximately  25% of the Orion  Newco  Common  Stock  issuable  to the
Limited  Partners  upon  conversion).  The Company will also be required to file
certain additional shelf registration  statements for the Exchanging Partners so
that  they will be able to sell,  each  quarter,  up to 25% of the  Orion  Newco
Common Stock issuable to them upon conversion,  on a  non-cumulative  basis, and
certain additional shelf registration statements for British Aerospace and Matra
Marconi Space. No predictions  can be made as to the effect,  if any, that sales
of Orion Newco Common Stock or the  availability  of additional  shares of Orion
Newco Common Stock for sale by the  Exchanging  Partners,  British  Aerospace or
Matra Marconi Space would have on the market price of such securities prevailing
from time to time. Nevertheless, the foregoing could adversely affect the market
prices of the Orion Newco  Common  Stock and the ability of Orion Newco to raise
equity financing. See "Orion Newco Shares Eligible for Future Sale."     

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<PAGE>
ANTI-TAKEOVER AND OTHER PROVISIONS OF THE CERTIFICATE OF INCORPORATION

   
   Orion's Certificate of Incorporation  includes, and Orion Newco's Certificate
of Incorporation will include, provisions that may discourage or prevent certain
types of  transactions  involving  an actual or  potential  change in control of
Orion  or  Orion  Newco,  respectively,  including  transactions  in  which  the
stockholders  might  otherwise  receive a premium  for  their  shares  over then
current market prices. In addition,  the Board of Directors has the authority to
fix the rights and preferences of and issue shares of preferred stock, which may
have the effect of delaying or  preventing a change in control of Orion or Orion
Newco without action by the  stockholders.  The staggered terms of the Company's
Board of  Directors  could  also  discourage  any  potential  acquirer.  Orion's
Certificate  of  Incorporation   also  permits  the  redemption  of  stock  from
stockholders  where  necessary to protect  Orion's  regulatory  licenses.  Orion
Newco's Certificate of Incorporation will be substantially  identical to Orion's
Certificate of  Incorporation.  See "Description of Orion Newco Capital Stock --
Certain Anti-Takeover  Effects." In addition,  any change of control of Orion or
Orion Newco is subject to the prior approval of the FCC. See "Information  About
Orion's Business -- Regulation -- Unauthorized Transfer of Control."     

                                       31
<PAGE>
                               THE SPECIAL MEETING

INTRODUCTION

   This Proxy  Statement/Prospectus  is being  furnished to the  stockholders of
Orion Network Systems,  Inc. in connection with the solicitation by the Board of
Directors of Orion of proxies for use at a special meeting of stockholders to be
held on Thursday,  January 30, 1997 at 9:00 a.m.,  local time,  at 2440 Research
Boulevard, Suite 400, Rockville, Maryland.

   At the Special Meeting,  stockholders will be asked to consider and vote upon
proposals (i) to ratify the Merger Agreement and the  transactions  contemplated
thereby,  including the Merger, (ii) to approve and adopt the Exchange Agreement
and the transactions contemplated thereby,  including the Exchange, and (iii) to
approve  the  Debenture  Investments.  See "The  Merger,  the  Exchange  and the
Debenture Investments." Except for procedural matters incident to the conduct of
the  Special  Meeting,  Orion  does not know of any  matters  other  than  those
described  in the Notice of Special  Meeting that are to come before the Special
Meeting.

VOTING RIGHTS AND RELATED MATTERS

   The shares of Orion capital  stock which may be voted at the Special  Meeting
consist of shares of Orion  Common  Stock and shares of Orion Series A Preferred
Stock and Orion  Series B  Preferred  Stock.  Each share of Orion  Common  Stock
eligible to vote  entitles its holder to one vote on all matters,  each share of
Orion Series A Preferred Stock eligible to vote entitles its holder to 117 votes
on all  matters  (the  number of votes  per share  determined  by  dividing  the
liquidation preference of the Orion Series A Preferred Stock of $1,000 per share
by the conversion price of $8.50 per share of Orion Common Stock) and each share
of Orion  Series B Preferred  Stock  eligible to vote  entitles its holder to 98
votes on all matters (the number of votes per share  determined  by dividing the
liquidation preference of the Orion Series B Preferred Stock of $1,000 per share
by the conversion price of $10.20 per share of Orion Common Stock).

   The close of  business  on  December  23, 1996 has been fixed by the Board of
Directors  as the record  date for  determination  of  stockholders  entitled to
notice of, and to vote at, the Special Meeting.  On the record date,  10,974,121
shares of Orion Common Stock were  outstanding and eligible to be voted,  13,871
shares of Orion  Series A Preferred  Stock were  outstanding  and eligible to be
voted  (representing an aggregate of 1,622,907 votes), and 4,298 shares of Orion
Series B Preferred Stock were outstanding and eligible to be voted (representing
an aggregate of 421,204 votes) at the Special Meeting.  The foregoing share vote
calculations  reflect adjustments arising from the 1-1.36 reverse stock split of
the Orion Common Stock effected in July 1995.

   The holders of a majority of the votes of the shares of Orion  capital  stock
issued and outstanding and entitled to vote, present in person or represented by
proxy, treated as a single class, will be required to constitute a quorum at the
Special  Meeting.  Under  Delaware  law,  abstentions  and broker  non-votes are
counted for purposes of determining a quorum.

VOTES REQUIRED

   
   The  affirmative  vote of holders of a majority of the votes of the shares of
Orion  capital stock that are entitled to vote and that are present in person or
represented by proxy at the Special Meeting,  treated as a single class, will be
required to approve each proposal to be considered at the Special Meeting. Orion
anticipates   that  all  members  of  the  Board  of  Directors  who  are  Orion
stockholders   and  companies  they  represent  (who  held,  in  the  aggregate,
approximately  38% of Orion's  voting stock as of September 30, 1996) will enter
into written agreements to vote for each such proposal.
    

   Under Delaware law,  abstentions,  but not broker  non-votes,  are counted as
shares entitled to vote for purposes of determining  whether a proposal has been
approved by the necessary  number of votes.  Abstentions on a proposal will have
the effect of a vote against such proposal.

   The Merger will be effected in accordance with Section 251(g) of the Delaware
General Corpora-

                                       32
<PAGE>
   
tion Law, which under certain circumstances permits a Delaware corporation (such
as Orion) to reorganize  by merging with or into a wholly owned  subsidiary of a
holding company (such as Orion Newco) without the requirement that  stockholders
of  such  Delaware   corporation   adopt  and  approve  the  merger   agreement.
Accordingly,  although the Merger  Agreement and the  transactions  contemplated
thereby,  including the Merger,  are being submitted for ratification by Orion's
stockholders  at  the  Special   Meeting   pursuant  to  contractual  and  other
requirements, no vote of Orion's stockholders adopting, approving or authorizing
the Merger  Agreement  and such  transactions  is required  under  Delaware law.
However,  the  Company  does not  intend  to  proceed  with the  Merger  without
obtaining stockholder ratification.
    

NO DISSENTERS' RIGHTS

   Orion  stockholders  are not  entitled  under  Delaware  law to  appraisal or
dissenters'  rights  in  connection  with the  matters  submitted  by Orion  for
stockholder ratification or approval at the Special Meeting.

PROXIES

   A proxy may be revoked  by any Orion  stockholder  who  attends  the  Special
Meeting  and gives  notice  of such  stockholder's  intention  to vote in person
without compliance with any other formalities.  In addition, any stockholder may
revoke a proxy at any time  before it is voted by  executing  and  delivering  a
later dated proxy or by  delivering a written  notice to the  Secretary of Orion
stating that the proxy is revoked.  At the Special Meeting,  stockholders' votes
cast,  either in person or by proxy,  will be tabulated by persons  appointed by
the Board of Directors to act as inspectors of election.

   The cost of soliciting  proxies in the form  enclosed  herewith will be borne
entirely by Orion. In addition to the solicitation of proxies by mails,  proxies
may be  solicited  by officers  and  directors  and regular  employees of Orion,
without additional remuneration, by personal interviews, telephone, telegraph or
otherwise.  Orion may also  utilize the services of its  transfer  agent,  Fleet
National  Bank, to provide broker search and proxy  distribution  services at an
estimated cost of $2,000.  Copies of  solicitation  material may be furnished to
brokers, custodians, nominees and other fiduciaries for forwarding to beneficial
owners of shares of Orion Common Stock,  and normal handling charges may be paid
for such forwarding service.  All executed proxies received before the vote will
be voted in the manner  indicated.  Executed but unmarked  proxies will be voted
FOR  each of the  proposals  relating  to the  Merger  Agreement,  the  Exchange
Agreement and the Debenture  Investments  submitted to the  stockholders  at the
Special Meeting.

                                       33
<PAGE>
             THE MERGER, THE EXCHANGE AND THE DEBENTURE INVESTMENTS

   The  following  discussion  summarizes  the  material  aspects  of the Merger
Transactions,  as set forth in the Merger Agreement and the Exchange  Agreement,
and the Debenture  Investments,  as set forth in the Debenture  Agreement.  This
discussion  is  qualified  in its  entirety by reference to the full text of the
Merger Agreement, the Exchange Agreement and the Debenture Agreement,  including
each of the exhibits thereto,  the material provisions of which are described in
this Proxy Statement/Prospectus. Copies of the Merger Agreement and the Exchange
Agreement are attached hereto as Attachments A and B,  respectively,  and a copy
of the  Debenture  Agreement  has been filed as an  exhibit to the  Registration
Statement of which this Proxy  Statement/Prospectus  is a part.  See  "Available
Information."

BACKGROUND OF THE MERGER TRANSACTIONS AND THE DEBENTURE INVESTMENTS

   Orion's principal  business is the provision of satellite  communications for
private  communications  networks,  Internet access and video  distribution  and
other  satellite  transmission  services.  From its  inception  in 1982  through
January 20,  1995,  when Orion 1 commenced  commercial  operations,  Orion was a
development stage enterprise.  During this period,  Orion's efforts were devoted
primarily to monitoring the  construction,  launch and in-orbit testing of Orion
1, product  development,  marketing and sales of interim  private  communication
network services,  raising additional financing for such services,  marketing of
capacity and planning Orion 2 and Orion 3 and refinancing of Orion 1. Subsequent
to the acceptance of Orion Atlantic's first satellite, Orion 1, in January 1995,
Orion's efforts have been primarily focused on building customer  relationships,
marketing  and sales of  network  and  satellite  services,  as well as  ongoing
planning for the future  construction  of Orion 2 and Orion 3 and refinancing of
Orion 1.

   The Merger,  the Exchange and the Debenture  Investments arose out of Orion's
plans to refinance  Orion  Atlantic's  existing debt and finance two  additional
satellites,  Orion 2 (with coverage of Europe, Russia, the eastern United States
and Latin  America) and Orion 3 (with coverage of the Asia Pacific  region).  In
the fall of 1995,  Orion Atlantic  commenced but  ultimately  deferred a plan to
raise over $290  million of  financing  for Orion 2, plus $300 million of senior
secured  notes to repay the  existing  Orion 1 Credit  Facility  payments,  make
certain  repayments  to the Limited  Partners and provide  working  capital (the
"1995  Financing").  After the  decision  was made to defer the 1995  Financing,
Orion's  management  team  began  the  process  of  selecting  and  implementing
financing  plans that would allow Orion to refinance  Orion 1 and to  construct,
launch and operate Orion 2 and Orion 3. The objectives of the refinancing  would
be to  eliminate  the  credit  support  obligations  of  the  Limited  Partners,
including  Orion,  under the Orion 1 Credit Facility and to enable the financing
of Orion 2 to proceed. Orion believed that this would improve Orion's short-term
and long-term growth prospects and maximize Orion's  stockholders' equity value.
Based on the partnership structure of Orion Atlantic,  management worked closely
with the Limited Partners to develop an acceptable financing plan.

   On December 6, 1995, at a meeting of the Policy and Planning Review Committee
of Orion Atlantic, Salomon Brothers Inc ("Salomon Brothers") was asked to make a
presentation   analyzing   the  1995   Financing  and   recommending   financing
alternatives  available to Orion.  Salomon  Brothers  was selected  based on its
participation  in the 1995 Financing and role as lead manager of Orion's initial
public offering,  and its resulting  familiarity with the business and financial
condition of Orion.  Effective April 10, 1996,  Salomon  Brothers was engaged as
Orion's  financial  advisor in connection  with the Exchange.  Salomon  Brothers
ultimately  rendered an opinion to Orion  regarding the fairness to Orion from a
financial  point  of  view of the  consideration  to be  paid  by  Orion  in the
Exchange. See " Opinion of Orion's Financial Advisor" below.

   Throughout  the months of January  and  February  1996,  management  explored
alternative  financing  plans.  On February 13, 1996, a management team met with
representatives  of Salomon Brothers in New York City. At that meeting,  Salomon
Brothers  discussed,  among other things,  the possible mechanics of an exchange
for the Limited Partners'  partnership  interests,  and the  consideration  that
would need to be  provided  to the  Limited  Partners.  On  February  23,  1996,
management  drafted a memorandum  that outlined the structural  framework of the
financing  plan that  ultimately  evolved into the Merger  Transactions.  In the
February 23 memorandum,  management reiterated that the prospect of resurrecting
the 1995  Financing  appeared  doubtful.  Members of Orion's  Finance  Committee
discussed the February 23, 1996  management  memorandum by phone on February 27,
1996.

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<PAGE>
   During the month of March 1996,  exploration of alternative  financing  plans
continued. On March 15, 1996, certain members of the Finance Committee discussed
the valuation of the consideration that would need to be provided to the Limited
Partners in exchange for their limited partnership  interests in Orion Atlantic.
On March 19, 1996, at a meeting of Orion's Finance Committee,  members discussed
the financing  alternatives  that would be available to Orion if the exchange of
the Limited Partners'  partnership  interests was not concluded.  Based on these
discussions,   the  Finance  Committee  recommended  that  management  pursue  a
financing  plan that  involved  an exchange  of the  Limited  Partners'  limited
partnership  interests in Orion Atlantic for Orion stock. The Finance  Committee
also requested management to prepare a valuation of Orion Atlantic that would be
submitted to the Board for approval.

   Certain  members of the Finance  Committee  conducted a telephone  conference
call on March 25, 1996,  to review  progress  made,  and to analyze the relative
merits of the financing plans that had been explored. Participants agreed on the
importance of selecting a financing  plan that would  achieve an improved  Orion
Atlantic  corporate  governance  structure  that  allowed  for  quicker and more
flexible  decision  making.  Participants  further  agreed  that this  corporate
governance  structure could be achieved by fully  exchanging Orion stock for the
Limited Partners' partnership interests.

   In  meetings  held on April  9,  1996,  management  reported  to the  Finance
Committee that it was refining a financing plan that would eliminate the limited
partner  guarantees and exchange  securities of Orion for the Limited  Partners'
limited partnership interests in Orion Atlantic. Discussions of the terms of the
proposed financing plan continued the next day.  Discussions of the terms of the
proposed  financing plan  continued  further at an April 17, 1996 meeting of the
Finance Committee.

   In an April 18, 1996  memorandum,  management  provided the Limited  Partners
with a status report on the new financing plan.  Management,  in the memorandum,
expressed its belief that the new financing plan would satisfy Orion's  criteria
for a financing plan,  refinancing  Orion 1 and financing the  construction  and
launch of Orion 2.

   A meeting of the Finance  Committee  was held on May 2, 1996,  to discuss the
new financing plan.  Management presented a document summarizing the basic terms
and conditions of the security  proposed to be issued to the Limited Partners in
exchange for their limited partnership  interests in Orion Atlantic.  Based upon
the meeting, the Finance Committee unanimously approved making a proposal to the
Limited Partners to exchange their interests in Orion Atlantic for securities of
Orion pursuant to the term sheet.

   On May 3, 1996,  management sent the Limited Partners a memorandum containing
details  of the  proposed  financing  plan.  In  the  May  3,  1996  memorandum,
management  outlined the terms of the Exchange.  As detailed in the  memorandum,
management  informed the Limited Partners that they had been working to select a
financing  strategy that would allow for the  refinancing  of the Orion 1 Credit
Facility and finance the construction and launch of Orion 2. Management informed
the Limited Partners that they had (based on management's evaluation) selected a
financing  plan. The  management  plan had a number of elements.  Initially,  in
order to simplify the structure of Orion Atlantic, the Limited Partners' limited
partnership  interests  in Orion  Atlantic and certain  obligations  owed to the
Limited  Partners  by  Orion  Atlantic  would  be  exchanged  for a  convertible
preferred  security of Orion.  The security  would be  convertible  into Orion's
common stock.  In connection  with the exchange,  Orion would secure  additional
capital by conducting a convertible debt offering. The simplified Orion Atlantic
structure would enhance the marketability of Orion's  convertible debt offering.
Proceeds of the convertible  debt offering would be used to fund an initial down
payment for the  construction and launch of Orion 2 and a portion of the initial
down  payment  for the  construction  and  launch of Orion 3.  Based  upon prior
discussions with British Aerospace through its representative on the Orion Board
of  Directors  and Finance  Committee,  Orion  proposed  that $50 million of the
convertible  debt offering be purchased by British  Aerospace.  Vendor financing
would supplement the convertible debt offering proceeds,  and go towards meeting
the capital needed to construct and launch Orion 2 (and, if possible,  Orion 3).
Concurrently  with the  convertible  debt offering and the arrangement of vendor
financing,  Orion would conduct a bond offering designed to raise enough capital
to refinance the Orion 1 Credit Facility, and provide for working capital.

   In response to a request by certain  Limited  Partners,  the plan was further
refined.  In particular,  the Company asked Ernst & Young LLP to review the plan
from a tax perspective and determine whether

                                       35
<PAGE>
a transaction  could be structured that would provide the Limited  Partners with
non-recognition  treatment (in whole or in part) in connection  with an exchange
of their  interests in Orion Atlantic for stock.  After  reviewing  management's
plan, Ernst & Young LLP advised  management that the structure  described herein
would provide (i) the  Exchanging  Partners with the  opportunity to qualify for
nonrecognition  treatment  under  Section  351 of the Code  and  (ii) the  Orion
stockholders with similar  nonrecognition  treatment under either Section 351 or
Sections 354 and 368(a) of the Code,  subject to certain  exceptions  summarized
below,  and provided certain  requirements  are satisfied.  See "Certain Federal
Income Tax Consequences" below.

   Following  distribution  of the May 3, 1996  memorandum  detailing the Merger
Transactions to the Limited  Partners,  management and Orion's counsel proceeded
to negotiate the definitive  documentation  relating to the Merger Transactions.
On May 20, 1996, counsel to Orion and the Limited Partners met for a negotiation
session, and negotiations  continued through approximately the end of June 1996.
The  terms of the  Merger  Transactions,  including  the  exchange  ratio,  were
determined  as a result  of arm's-  length  negotiations  between  Orion and its
advisors and the Limited  Partners and their advisors.  One of the conditions to
the Merger  Transactions was the purchase of $50 million of the convertible debt
offering by British  Aerospace,  and British  Aerospace  expressed its intent to
make such  purchase,  on the same terms as the portion of the  convertible  debt
offering to be offered to the public.

   During late June and early July 1996,  each of the  Exchanging  Partners (but
not Orion)  executed  copies of the  Exchange  Agreement  and  various  exhibits
thereto.  The executed  counterparts  were placed into escrow to be delivered to
Orion, OrionSat or Orion Newco on the date of the Exchange.

   During  late June and July 1996,  Orion  worked with its  financial  advisor,
Salomon  Brothers,  regarding  possible bond and  convertible  note  financings.
Salomon Brothers informed Orion during July that the zero coupon high yield bond
market in the communications sector was experiencing a general downturn and that
it would not be advantageous to seek to raise the financing at that time.  Based
on this  advice,  the  Board  decided  to defer  the bond and  convertible  note
offerings  and the  Exchange  until  the  market  for  high  yield  bonds in the
communications  sector had  improved  sufficiently  to allow  Orion to raise the
capital it desired.

   Between July 1996 and  November  1996,  Orion  management  consulted  several
investment  banks to  explore a variety of  alternative  financing  methods  and
potential   transactions.   In  November  1996,   Orion   selected   prospective
underwriters for the proposed Notes Offering, and commenced preparations for the
Notes Offering.

   Salomon  Brothers  rendered to the Board of  Directors  of Orion,  at a Board
meeting, its opinion dated December 10, 1996 that, based upon and subject to the
various  considerations  set forth in the opinion,  as of December 10, 1996, the
consideration to be paid by Orion in connection with the Exchange is fair from a
financial point of view to Orion.  Management confirmed its view that the Merger
Transactions  are in the best interests of Orion and its  stockholders.  Orion's
Board of Directors,  on December 10, 1996, after careful  deliberation  (with W.
Anthony  Rice,  a  representative  of  British  Aerospace,   recusing  himself),
unanimously  approved the Exchange and the Exchange  Agreement  (which  includes
effecting the Merger).  Salomon  Brothers  delivered its fairness  opinion later
that day.

   In  December  1996  and  January  1997,  Orion  and the  Exchanging  Partners
conducted  negotiations  concerning  certain changes to the Exchange  Agreement,
which  were  ultimately  agreed  upon in the  First  Amendment  to the  Exchange
Agreement.  Such changes  included  agreement by the  Exchanging  Partners to an
extension of the termination date for the Exchange  Agreement to April 30, 1997,
agreement for the cash refund of payments made by the Exchanging  Partners after
January 29, 1997 under the Orion 1 Credit Facility  Support (to the extent Orion
Newco has  sufficient  funds to make such refund after payment of various agreed
items),  and  substitution  of the  Debenture  Investments  for  the  previously
proposed public offering of convertible debt securities.

   
   Also in December 1996,  Orion and British  Aerospace  commenced  negotiations
concerning the terms of the Debenture Investments. Matra Marconi Space agreed to
make the  Matra  Marconi  Investment  of $10  million  on the same  terms as the
British Aerospace Investment. Orion's Board of Directors, on January 3, 1997 and
on January 8, 1997 (with W. Anthony Rice, a representative of British Aero- 
    

                                       36
<PAGE>
space,  recusing  himself),  unanimously  approved  the  Debenture  Investments.
Effective as of January 13, 1997, Orion and British  Aerospace and Matra Marconi
Space executed the Debenture Agreement.

REASONS FOR THE MERGER TRANSACTIONS AND THE DEBENTURE INVESTMENTS

   Orion   believes  that  the  Merger   Transactions   will  simplify   Orion's
organizational  structure  and improve its access to the  capital  markets.  The
Transactions will consolidate  outside investor ownership at the holding company
level,  Orion  Newco,  and leave Orion Newco with 100%  ownership  of all of its
material subsidiaries, including Orion Atlantic. This will promote a streamlined
corporate governance  structure that will facilitate improved,  quicker decision
making. By eliminating  minority  interests in the Orion  subsidiaries that hold
satellite assets,  Orion Newco will be able to pursue independently its business
plans and financings for all of its satellites.  The  Transactions  will further
simplify  Orion's  structure by eliminating  (in exchange for Orion Newco stock)
the obligations Orion Atlantic owes to the Exchanging Partners.  As of September
30, 1996, such obligations aggregated approximately $37.5 million.  Finally, the
increase in  outstanding  securities as a result of the Merger  Transactions  is
expected to increase Orion's overall market capitalization, which Orion believes
will also improve its access to the capital markets.

   Orion's  principal  reason for the issuance of $50 million of  Debentures  to
British  Aerospace  is to raise  additional  capital for initial  payments  with
respect to Orion 2, of which  approximately  $49.4  million of payments  are due
under the Orion 2 Satellite  Contract  during  1997.  The sale of $10 million of
Debentures to Matra Marconi Space will involve a re-investment  by Matra Marconi
Space of $10 million of the $13 million of satellite  incentive  payments  Matra
Marconi Space will receive as the Orion 1 manufacturer  upon consummation of the
Notes Offering.  The consummation of the Debenture Investments is a condition to
the Exchange.

   Access to the capital  markets is necessary for Orion to achieve its business
plan to construct and launch two additional  satellites,  Orion 2 (with coverage
of Europe,  Russia,  the eastern  United  States and Latin  America) and Orion 3
(with coverage of the Asia Pacific  region).  With this plan in mind,  Orion and
Orion  Newco  have been  pursuing  and will  continue  to pursue  the  following
transactions:

   
   (i) Notes Offering:  the Notes Offering in the amount of  approximately  $347
million with expected gross proceeds of  approximately  $275 million,  excluding
approximately  $72 million of  overfunding  of interest  due on such notes.  The
principal  purpose  of the Notes  Offering  is to  refinance  the Orion 1 Credit
Facility and release the existing  commitments of the Limited Partners and their
affiliates  under  the  Orion 1  Credit  Facility  Support.  Such  release  is a
condition to the Exchange.     

   (ii) Orion 2 Construction Contract: the Orion 2 Satellite Contract with Matra
Marconi  Space,  under which the  manufacturer  is to proceed with  construction
based upon initial payments of $25 million and further payments through December
1997  limited to  approximately  $25  million.  Orion  expects to  commence  the
construction of Orion 2 immediately following completion of the Notes Offering.

   (iii) Orion 3  Construction  Contract:  the Orion 3 Satellite  Contract  with
Hughes Space, under which the manufacturer is to proceed with construction based
upon initial  payments  through January 31, 1997 of  approximately  $15 million,
with  further  payments  through  March 31, 1998 being  limited to $35  million,
payable in  approximately  equal  quarterly  installments.  The  majority of the
amounts due under the contract  are payable in the second and third  quarters of
1998.  Orion commenced  construction  of Orion 3 in  mid-December  1996 under an
authorization  to  proceed,  and  expects to enter into a  definitive  satellite
contract in January 1997.

   As discussed above under the caption  "Background of the Merger  Transactions
and the  Debenture  Investments,"  Orion  believes  that it would not be able to
complete  these  financings  in the absence of the Merger,  the Exchange and the
Debenture Investments.  Orion believes that the construction and launch of Orion
2 and Orion 3 will offer  stockholders an opportunity to realize long-term value
through the potential  appreciation  in the value of Orion's stock (as converted
into Orion Newco stock) due to the increased revenues anticipated to result from
the operation of Orion 2 and Orion 3.

   Even if  stockholders  ratify or  approve  the  Merger  Transactions  and the
Debenture  Investments,  and the other conditions to the Merger Transactions and
the Debenture Investments are satisfied, the

                                       37
<PAGE>
Orion Board of  Directors  reserves  the right,  based on its  consideration  of
market conditions and such other factors as it considers  appropriate,  to cause
Orion not to consummate the Merger Transactions and the Debenture Investments if
it  determines  the Merger  Transactions  and the Debenture  Investments  are no
longer in the best interests of Orion stockholders.

THE MERGER AGREEMENT

TERMS OF THE MERGER AGREEMENT

   Effective  as of  January  8,  1997,  Orion,  Orion  Newco and  Orion  Merger
Subsidiary  entered  into the Merger  Agreement,  pursuant to which Orion Merger
Subsidiary  will be merged with and into  Orion,  and Orion will become a wholly
owned subsidiary of Orion Newco. At the Effective Time of the Merger (as defined
below),  each  outstanding  share of Orion  Common Stock and each share of Orion
Series A Preferred  Stock and Orion Series B Preferred  Stock will be converted,
without any action on the part of the holder thereof,  into the right to receive
one share of Orion Newco Common Stock,  Orion Newco Series A Preferred Stock and
Orion  Newco  Series  B  Preferred  Stock,  respectively.  It is  expected  that
approximately  10,974,121  shares of Orion Newco Common Stock,  13,871 shares of
Orion Newco  Series A Preferred  Stock and 4,298  shares of Orion Newco Series B
Preferred  Stock  will be issued to the  stockholders  of Orion in the Merger in
exchange for their shares of Orion Common Stock,  Orion Series A Preferred Stock
and Orion  Series B Preferred  Stock,  respectively.  Such shares of Orion Newco
Series A  Preferred  Stock and Orion  Newco  Series B  Preferred  Stock  will be
convertible as of the issuance date into an aggregate of approximately 2,053,255
shares of Orion Newco Common Stock, or approximately 7.9% of the shares of Orion
Newco Common Stock  outstanding on a fully diluted basis,  assuming a closing of
the Merger as of January 30, 1997.

   The Merger  will  become  effective  upon the filing of the  Delaware  Merger
Certificate  (as such term is used in the Merger  Agreement)  with the  Delaware
Secretary  of  State,  which is  expected  to occur  following  ratification  or
approval  of the  Merger  Transactions  and  the  Debenture  Investments  by the
requisite  vote of the Orion  stockholders,  and  satisfaction  or waiver of the
other  conditions set forth in the Merger  Agreement and the Exchange  Agreement
(the "Effective Time of the Merger").

   The Merger  Agreement  provides that Orion Merger  Subsidiary  will be merged
with and into Orion,  and that Orion will be the surviving  corporation and will
become a wholly owned  subsidiary  of Orion  Newco.  Following  the Merger,  the
separate  existence  of Orion  Merger  Subsidiary  will  cease.  Effective  upon
consummation of the Merger,  Orion will change its name to Orion Oldco Services,
Inc. and, as soon as practicable thereafter, Orion Newco will change its name to
Orion  Network  Systems,  Inc.  The  Merger  Agreement  also  provides  that the
Certificate of Incorporation and Bylaws of Orion in effect  immediately prior to
the Effective Time of the Merger will be the Certificate of Incorporation  (with
certain  amendments) and Bylaws of the surviving  corporation.  The officers and
directors of the surviving  corporation will consist of the current officers and
directors of Orion. See "Management of Orion and Orion Newco."

   At the Effective Time of the Merger, all outstanding stock options, including
those under  Orion's  1987 Stock  Option Plan and  Non-Employee  Director  Stock
Option Plan (the "Orion Options"), will be assumed by Orion Newco to the fullest
extent  permitted by  applicable  law (such assumed  options  being  referred to
herein as "Orion Newco Assumed  Options").  Each Orion Newco Assumed Option will
be subject  to the same  terms and  conditions  that were  applicable  under the
related Orion Option immediately prior to the Effective Time of the Merger.

   Orion and Orion Newco have  agreed to take all  corporate  and other  actions
necessary to  effectuate  the  assumption  of the Orion  Options,  and Orion has
agreed to use its best efforts  prior to the closing of the Merger to obtain any
consents  from the holders of Orion  Options that may be necessary to effectuate
such assumption, if required by the terms of the Orion Options. Orion Newco also
has agreed to take all corporate and other actions necessary to reserve and make
available  sufficient  shares of Orion  Newco  Common  Stock for  issuance  upon
exercise of the Orion Newco Assumed Options.

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<PAGE>
   At the Effective Time of the Merger,  Orion Newco will, to the fullest extent
permitted by applicable law, assume all of Orion's  obligations  with respect to
each outstanding warrant or other right to purchase shares of Orion Common Stock
upon the same terms and  conditions  that were  applicable  under  such  warrant
immediately prior to the Effective Time of the Merger.

   For  more  information  on  the  specific  terms  of  the  Merger  Agreement,
stockholders are referred to the full text of the Merger  Agreement  attached to
this Proxy Statement/Prospectus as Attachment A.

NO EXCHANGE OF CERTIFICATES

   
   At the Effective Time of the Merger,  by virtue of the Merger and without any
action  on the part of  Orion,  Orion  Merger  Subsidiary,  Orion  Newco,  Orion
stockholders or any other person, the shares of Orion Newco capital stock, which
the shares of Orion capital stock respectively will have been converted into the
right  to  receive,  will  be  represented  and  evidenced  by  the  same  stock
certificates that previously  represented and evidenced the Orion capital stock.
    

CONDITIONS TO OBLIGATIONS TO EFFECT THE MERGER

   The respective  obligations  of each party to the Merger  Agreement to effect
the Merger are subject to the  satisfaction  of the  following  conditions at or
prior to the closing of the Merger:

   (i)  the   ratification  of  the  Merger   Agreement  and  the   transactions
contemplated  thereby by the  requisite  affirmative  vote of the holders of the
Orion  capital  stock  and  the  approval  of  the  Merger   Agreement  and  the
transactions  contemplated  thereby  by the  requisite  affirmative  vote of the
holder  of the  outstanding  Orion  Newco  Common  Stock  and the  holder of the
outstanding Orion Merger Subsidiary common stock;

   (ii) the receipt of all authorizations,  consents, orders or approvals of, or
making of all filings with, any Governmental Entity (as such term is used in the
Merger Agreement) necessary for consummation of the Merger;

   (iii) the  effectiveness of the  Registration  Statement under the Securities
Act and the absence of any stop order with respect to the Registration Statement
and of any proceedings commenced or threatened by the Commission with respect to
this Proxy Statement/Prospectus;

   (iv) the absence of any temporary restraining order, preliminary or permanent
injunction or other order issued by any court of competent jurisdiction or other
legal restraint or prohibition preventing consummation of the Merger;

   (v)  the  absence  of  any  statute,   rule  or  regulation  enacted  by  any
Governmental Entity that would make consummation of the Merger illegal;

   (vi) the receipt of an opinion  from Ernst & Young LLP, tax advisor to Orion,
and a determination  by the Board of Directors of Orion to the effect that Orion
stockholders  do not recognize gain or loss for United States federal income tax
purposes;

   (vii) the continued  accuracy of the  representations  and warranties made by
each party in the Merger Agreement; and

   (viii) the consummation of the Exchange concurrently with the Merger.

AMENDMENT AND TERMINATION

   The Merger  Agreement  may be amended by Orion,  Orion Newco and Orion Merger
Subsidiary at any time before or after ratification or approval of the Merger by
the stockholders of such companies,  but after any such stockholder ratification
or approval, no amendment may be made which under Section 251(d) of the Delaware
General  Corporation  Law would  require the approval  (or further  approval) of
stockholders without obtaining such stockholder approval.

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<PAGE>
   The Merger  Agreement  may be  terminated  at any time prior to the Effective
Time of the Merger,  whether before or after  ratification  or approval,  as the
case may be, of the Merger  Agreement and related matters by the stockholders of
Orion,  Orion Newco and Orion Merger  Subsidiary (i) by mutual consent of all of
the parties or (ii) by any party, if any required  approval of the  stockholders
of Orion,  Orion Newco or Orion Merger Subsidiary has not been obtained by April
30, 1997.

ACCOUNTING TREATMENT

   The Merger will be accounted for as a reorganization of entities under common
control.  As a result,  the assets and liabilities  transferred  pursuant to the
Merger  will be  accounted  for at a  historical  cost in a manner  similar to a
pooling of interests.

THE EXCHANGE AGREEMENT

PARTIES

   The Exchange  Agreement was entered into by Orion,  OrionSat,  Orion Atlantic
and the Exchanging Partners effective as of June 1996.

   Orion. Orion is a Delaware corporation, the 100% owner of OrionSat, a limited
partner of Orion Atlantic with a 16.66% equity interest, and the holding company
of other subsidiaries,  including OrionNet,  Inc. Orion owns and operates one of
the first privately owned  international  satellite  communications  networks as
well as video distribution and other satellite transmission services.  Since its
founding in 1982, Orion's efforts have been focused on the design,  construction
and  implementation of a global satellite  communications  system that meets the
expanding telecommunications needs of a multinational business. The consolidated
financial  statements of Orion include the financial  results of Orion  Atlantic
because of OrionSat's control of Orion Atlantic as its sole general partner. See
"Selected Consolidated Financial and Operational Data of Orion."

   OrionSat.  OrionSat  is a wholly  owned  subsidiary  of Orion and is the sole
general partner of Orion Atlantic with a 25% equity interest.

   Orion Atlantic.  Orion Atlantic,  a Delaware  limited  partnership,  owns and
operates the Orion 1 communications  satellite.  In 1991, Orion and seven of the
world's leading  telecommunications and aerospace systems companies formed Orion
Atlantic to finance the construction,  launch and operation of two communication
satellites, and to operate a multinational sales and services organization.

   Exchanging   Partners.   The  Exchanging   Partners  are  British   Aerospace
Communications,  Inc. ("BAe"),  COM DEV Satellite  Communications  Limited ("COM
DEV"), Kingston  Communications  International  Limited  ("Kingston"),  Lockheed
Martin  Commercial  Launch Services,  Inc.  ("Lockheed Martin CLS"), MCN Sat US,
Inc. ("Matra"), and Trans-Atlantic Satellite, Inc ("Nissho").

   The following sets forth certain information regarding each of the Exchanging
Partners:

   BAe is a subsidiary of British Aerospace Public Limited Company (collectively
with its affiliates, "British Aerospace"), which is Europe's leading defense and
aerospace  company and one of the  leading  companies  in the world  defense and
aerospace market.

   COM DEV is a  subsidiary  of COM DEV,  Limited.  COM DEV,  Limited  is also a
supplier of value-added satellite communications services, products for wireless
personal communications and satellite remote sensing data.

   Kingston is a  subsidiary  of Kingston  Communications  (Hull) plc,  the only
municipally-owned  telephone company in the United Kingdom.  Kingston  Satellite
Services,  a joint  venture  to  which  Kingston  is a  party,  serves  as sales
representative and ground operator for Orion Atlantic in the United Kingdom.

   Lockheed  Martin CLS was formerly  named Martin  Marietta  Commercial  Launch
Services,   Inc.  Lockheed  Martin  CLS  is  a  subsidiary  of  Martin  Marietta
Technologies,  Inc., a Lockheed Martin company. Lockheed Martin CLS acquired the
assets of General Dynamics Commercial Launch Services

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<PAGE>
through a transfer  of assets from Martin  Marietta  Corporation,  which in turn
acquired these and other assets  (including the Atlas family of launch vehicles)
from General Dynamics  Corporation in 1994.  Lockheed Martin CLS is a commercial
launch  services  provider and provided launch services to Orion Atlantic as the
launch  subcontractor.  Lockheed  Martin  CLS  became an  Exchanging  Partner by
acquiring the limited  partnership  interest of General Dynamics CLS in the 1994
transaction described above.

   Matra is a subsidiary of Matra  Hachette  ("Matra  Hachette"),  an aerospace,
defense, industrial and media company and part of the Lagardere Group of France.
Matra Hachette is a sales  representative and ground operator for Orion Atlantic
in France. Matra Hachette is one of the parent companies of Matra Marconi Space,
which is the present parent company of MMS Space Systems,  the prime  contractor
for Orion 1, and is the manufacturer under the Orion 2 Satellite Contract.

   Nissho is a subsidiary of Nissho Iwai Corporation, a trading company based in
Japan.

STRUCTURE OF THE EXCHANGE

   Orion  Newco  Formation.  Under the  Exchange  Agreement,  the parties to the
Exchange Agreement agreed that Orion would form a new Delaware corporation to be
named  Orion  Newco  Services,  Inc.  which is  substantially  identical  in all
material respects to Orion. In particular,  Orion Newco would have a certificate
of incorporation,  bylaws and capital structure  substantially  identical in all
material  respects to those of Orion.  Orion became the initial  stockholder  of
Orion Newco and owns all shares of Orion  Newco  Common  Stock.  Pursuant to the
terms of the  Exchange  Agreement,  Orion will take steps  necessary to make the
management of Orion Newco  identical to the management of Orion.  Subject to and
effective  upon  the  consummation  of the  Merger,  the  Orion  Newco  board of
directors  will consist of the ten current Orion  directors and Orion Newco will
change its name to Orion Network  Systems,  Inc. The Orion Newco management team
will  consist of the current  Orion  management  team.  Pursuant to the Exchange
Agreement, Orion will take the steps necessary to adopt, authorize,  execute and
file (i) a Certificate of  Designations,  Rights and  Preferences of Series A 8%
Cumulative  Redeemable  Convertible Preferred Stock of Orion Newco substantially
identical  in all material  respects to the Orion  Series A Preferred  Stock and
(ii) a  Certificate  of  Designations,  Rights  and  Preferences  of Series B 8%
Cumulative  Redeemable  Convertible Preferred Stock of Orion Newco substantially
identical in all material respects to the Orion Series B Preferred Stock.

   Orion Newco  Series C Preferred  Stock.  Under the  Exchange  Agreement,  the
parties  agreed  that Orion  Newco would  adopt,  authorize,  execute and file a
Certificate of  Designations,  Rights and  Preferences of Series C 6% Cumulative
Redeemable  Convertible  Preferred  Stock  establishing  the terms and  relative
rights of preferences of the Orion Newco Series C Preferred Stock. Assuming that
the Exchange  closes as of January 30, 1997,  121,988  shares of the Orion Newco
Series C Preferred  Stock  would be issued to the  Exchanging  Partners.  If the
Exchange  closes after  January 30, 1997,  Orion Newco will be obligated to make
certain cash refunds of payments made by the Exchanging Partners after that date
under various  agreements;  if Orion Newco does not have sufficient cash to make
such  refunds,  the  refunds  will be made in  shares  of Orion  Newco  Series C
Preferred  Stock, and the number of shares issued in the Exchange will increase.
See "Closing After January 30, 1997" below.  The number of shares of Orion Newco
Series C Preferred  Stock to be issued to the  respective  Exchanging  Partners,
pursuant to the Exchange Agreement,  will be adjusted proportionately to reflect
any subdivision, stock split, stock dividend,  recapitalization,  combination or
reverse  stock  split of Orion  capital  stock or similar  transaction  by Orion
between the date of the Exchange Agreement and the consummation of the Exchange.
The  Exchanging  Partners  have agreed to  transfer  their  limited  partnership
interests in Orion Atlantic,  other rights relating  thereto and amounts owed to
them by Orion Atlantic aggregating  approximately $37.5 million at September 30,
1996 to Orion in exchange  for such shares of the Orion Newco Series C Preferred
Stock.

   Agreement to the Merger. In the Exchange  Agreement,  the parties agreed that
Orion  Newco would form a new  Delaware  corporation  to be named  Orion  Merger
Subsidiary,  Inc.,  and that Orion Newco would be the sole  stockholder of Orion
Merger  Subsidiary.  Further,  the  parties  agreed  pursuant  to  the  Exchange
Agreement that Orion Merger  Subsidiary would be merged with and into Orion in a
merger in which Orion would be the surviving company and all the assets, rights,
property, liabilities and obligations of Orion

                                       41
<PAGE>
Merger  Subsidiary and Orion would be vested in Orion as the surviving  company.
Pursuant to Exchange Agreement, Orion agreed to cause all necessary documents to
effect the Merger to be prepared.

   Results of the Exchange. As a result of the Exchange,  the consolidated Orion
group will become the owner of all the  partnership  interests in Orion Atlantic
(through Orion Newco and Orion as the sole limited  partners and OrionSat as the
sole general partner of Orion Atlantic).  In addition,  Orion Newco will receive
the following rights  currently held by the Exchanging  Partners with respect to
Orion Atlantic: (i) all of the Exchanging Partners' rights and obligations under
the Second Amended and Restated Partnership  Agreement of International  Private
Satellite  Partners,  L.P.,  as amended  and  restated  simultaneously  with the
Exchange (the  "Partnership  Agreement"),  including  particularly  all of their
rights to receive distributions and allocations  thereunder,  but also all other
rights they may have as limited partners of Orion Atlantic under applicable law;
(ii)  all of the  rights  and  obligations  held by  certain  of the  Exchanging
Partners  under the Refund  Agreement,  dated  December  31,  1994,  among Orion
Atlantic,  OrionSat,  Orion and the  certain  of the  Exchanging  Partners  (the
"Refund Agreement"),  consisting primarily of rights by such Exchanging Partners
to receive an aggregate of $26.7 million of refunds thereunder; (iii) all of the
rights of COM DEV,  Kingston,  Lockheed Martin CLS and Matra under the Preferred
Participating  Unit  Agreements,  dated  as of  October  7,  1993,  among  Orion
Atlantic,  OrionSat,  and each of Orion, COM DEV, Kingston,  Lockheed Martin CLS
and Matra  (the "PPU  Agreement"),  consisting  primarily  of rights to  receive
repayment  of $6.6  million  advanced  thereunder  and $4.3  million of interest
accrued on such advances;  (iv) all of the Exchanging Partners' rights under the
Preferred  Bidders  Agreement,  effective as of December,  20, 1991, among Orion
Atlantic,  OrionSat,  Orion and the Exchanging  Partners (the "Preferred Bidders
Agreement"),  consisting of preferred  bidder status with respect to procurement
contracts  entered  into by Orion  Atlantic;  and (v) certain of the  Exchanging
Partners' rights under other agreements  between or among Orion Atlantic and its
Limited  Partners,  which  Orion  believes  are not  material  to Orion  but the
acquisition of which will result in termination of contractual  obligations that
may impose procedural or other burdens on Orion Atlantic.

   As a result of the  Exchange,  Orion Newco will  transfer  to the  Exchanging
Partners  the  following  numbers of shares of Orion  Newco  Series C  Preferred
Stock, assuming a closing as of January 30, 1997 (in each case, which numbers of
shares  will be  increased  pursuant  to a formula  based upon  payments  by the
Exchanging Partners under various agreements if the closing occurs after January
30, 1997, except to the extent that such payments are refunded in cash):

                                                   
                           EXCHANGING PARTNERS      NUMBER OF SHARES
                           -------------------      ----------------

                       BAe ...........................   50,129
                       COM DEV .......................    9,462
                       Kingston ......................   11,198
                       Lockheed Martin CLS ...........   19,534
                       Matra .........................   17,727
                       Nissho ........................   13,938


   The terms of the Orion Newco  Series C Preferred  Stock are  described  below
under "Description of the Orion Newco Series C Preferred Stock."

CONDITIONS TO THE EXCHANGE

   Orion and the  Exchanging  Partners.  Occurrence  of the Exchange is subject,
among  other  things,  to  satisfaction  or waiver  by Orion and the  Exchanging
Partners of the following conditions:

   (i) Orion Newco, Orion Atlantic, Orion and OrionSat shall have completed
the Orion 1 Credit Facility Refinancing. See "The Related Transactions -- The
Notes Offering/Orion 1 Credit Facility Refinancing."

   (ii) Orion Newco, Orion Atlantic, Orion, OrionSat and the Exchanging Partners
shall have caused the termination (the "Bank Agreement  Termination"),  which is
expected  to  occur  concurrently  with  the  completion  of the  Orion 1 Credit
Facility Refinancing, of all agreements between or among the Banks and Chase, on
the one hand, and one or more of Orion Newco,  Orion Atlantic,  OrionSat,  Orion
and the

                                       42
<PAGE>
Exchanging  Partners and/or their affiliates on the other hand,  relating to the
Orion 1 Credit  Facility or the  security or credit  support  thereof.  See "The
Related Transactions -- The Notes Offering/Orion 1 Credit Facility Refinancing."

   (iii)  Orion  Newco,  Orion  Atlantic,  Orion,  OrionSat  and the  Exchanging
Partners   shall  have  caused  the   termination   (the   "Capacity   Agreement
Termination"),  which is expected to occur  concurrently  with the completion of
the Orion 1 Credit Facility Refinancing and the Bank Agreement  Termination,  of
all support  obligations with respect to the Orion 1 Credit  Facility.  See "The
Related Transactions -- The Notes Offering/Orion 1 Credit Facility Refinancing."

   (iv) The Option  Agreement,  dated December 10, 1996,  between Orion Atlantic
and Matra Marconi Space shall be in full force and effect,  Orion Atlantic shall
not be in default  thereunder  and Orion  Atlantic  shall have made all payments
required to be made  thereunder  through the earlier of the closing  date of the
Exchange and March 31, 1997, and the Restated  Amendment #10, dated December 10,
1996,  to the Orion 1 Satellite  Contract  shall be in full force and effect and
Orion  Atlantic  shall not be in  default  thereunder.  See  "Information  About
Orion's Business -- Implementation of the Orion Satellite System -- Orion 2."

   (v)  Consents  needed  for  the  Exchange  shall  have  been  obtained.   See
"Approvals" below.

   (vi) Orion Newco shall be incorporated  with a certificate of  incorporation,
bylaws, capital structure and management substantially identical in all material
respects to those of Orion.

   (vii) The Merger shall have occurred, or be occurring  concurrently with, the
Exchange.

   (viii) The  Exchanging  Partners  shall have received an opinion from Ernst &
Young LLP, tax advisor to Orion, in form and substance  reasonably  satisfactory
to the  Exchanging  Partners,  to the effect  that the Merger and the  Exchange,
taken together, will be a tax-free exchange described in Code Section 351(a).

   Lockheed  Martin CLS. In  addition  to the  conditions  noted above under the
caption "Orion and the Exchanging  Partners,"  Lockheed Martin CLS's obligations
under the Exchange  Agreement are conditioned upon the satisfaction or waiver by
Lockheed  Martin CLS of the condition that Lockheed Martin CLS and Matra Marconi
Space enter into a subcontract to the Orion 2 Satellite Contract relating to the
launch of Orion 2. See "Information  About Orion's Business -- Implementation of
the Orion Satellite System -- Orion 2."

   Orion Parties. In addition to the conditions noted above under "Orion and the
Exchanging   Partners,"  the  Orion  parties'  obligations  under  the  Exchange
Agreement are conditioned upon the following:

   (i) The approval of the stockholders of Orion of the Merger Agreement and the
Exchange Agreement shall have been obtained.

   (ii) The Partnership Agreement shall have been amended and restated as of the
date of the Exchange.

   (iii)  Orion  Newco shall have  raised  approximately  $60  million  from the
Debenture Investments.

   The Orion 1 Credit  Facility  Refinancing,  Bank  Agreement  Termination  and
Capacity  Agreement  Termination  are dependent on successful  completion of the
Notes Offering,  which in turn depends upon market conditions and other factors,
and there can be no assurance that the Notes Offering will occur. Orion believes
that the  conditions  relating  to the  Orion 2  Satellite  Contract  and  other
arrangements  with Matra Marconi Space have been satisfied,  that the conditions
relating to the Lockheed Martin CLS  subcontract  have been satisfied or waived,
that the  Partnership  Agreement  amendment  has  been  obtained,  that  binding
commitments  to make the  Debenture  Investments  have been entered  into,  that
consents  needed for the Exchange have been or will be obtained,  that the Orion
Newco  formation  conditions  have been  satisfied,  that the Merger  will occur
concurrently with the Exchange if ratified by Orion  stockholders at the Special
Meeting and that all  required  opinions  from Ernst & Young LLP, tax advisor to
Orion, have been or will be obtained.
                                       43
<PAGE>
CERTAIN PROVISIONS OF THE EXCHANGE AGREEMENT

   The Exchange Agreement contains a number of  representations,  warranties and
indemnities by Orion and the Exchanging Partners.

    o Representations and Warranties. Among other things, each of the Exchanging
      Partners has severally  represented  and warranted to Orion that: (i) such
      Exchanging Partner is, and on the date of the Exchange will be, the lawful
      owner  of the  limited  partnership  interest  in Orion  Atlantic  of such
      Exchanging Partner, (ii) such Exchanging Partner has full right and lawful
      authority to transfer the limited  partnership  interest in Orion Atlantic
      of such Exchanging Partner pursuant to the Exchange  Agreement,  (iii) the
      Exchange  Agreement  constitutes  a valid and binding  obligation  of such
      Exchanging Partner,  enforceable in accordance with its terms, (iv) on the
      date of the Exchange,  Orion will acquire good, valid and marketable title
      to such  Exchanging  Partner's  limited  partnership  interests  in  Orion
      Atlantic,  (v) such Exchanging Partner is an "accredited  investor" within
      the  meaning of Rule 501 under the  Securities  Act,  (vi) the Orion Newco
      Series  C  Preferred  Stock  being  acquired  by such  Exchanging  Partner
      pursuant to the Exchange Agreement is for its own account,  for investment
      and  not  with  a view  toward  distribution  within  the  meaning  of the
      Securities  Act  (subject  to the  ability of  certain  of the  Exchanging
      Partners to  transfer a portion of their  Orion  Newco  Series C Preferred
      Stock to other Exchanging  Partners) and (vii) such Exchanging Partner has
      at the time of execution of the Exchange Agreement, and at the time of the
      Exchange  will have,  no present  plan or  intention  to sell or otherwise
      dispose of the Orion Newco Series C Preferred  Stock being  acquired under
      the Exchange  Agreement or any Orion Newco Common Stock  issuable upon the
      conversion of such Orion Newco Series C Preferred Stock.

      Among other things,  Orion has represented and warranted to the Exchanging
      Partners that: (i) Orion is a corporation duly organized, validly existing
      and in good  standing  under the laws of the State of  Delaware,  has full
      corporate  power  and  authority  to carry on its  business  as  currently
      conducted,  and has the full legal right,  capacity,  power and  authority
      (corporate or otherwise) to execute and deliver the Exchange Agreement and
      consummate  the  transactions  contemplated  thereby,  (ii)  the  Exchange
      Agreement  constitutes,  and the Registration Rights Agreement (as defined
      below) when executed,  will  constitute a valid and binding  obligation of
      Orion and Orion Newco,  enforceable in accordance with its terms, and that
      each  document  to be  executed  by Orion or Orion  Newco  pursuant to the
      Exchange  Agreement,  when executed and  delivered in accordance  with the
      provisions  thereof,  will be a valid and binding  obligation  of Orion or
      Orion  Newco,  enforceable  in  accordance  with  its  terms,  (iii)  upon
      consummation of the transactions contemplated by the Exchange Agreement at
      the closing of the Exchange Agreement,  the Orion Newco Series C Preferred
      Stock will be duly and validly issued, fully paid and nonassessable and no
      personal  liability  will  attach  to  the  ownership  thereof,   and  the
      Exchanging  Partners will acquire the legal, valid and marketable title to
      the Orion Newco Series C Preferred Stock,  (iv) except as set forth in the
      consolidated  audited  financial  statements  of Orion as of December  31,
      1995,  and for the  period  ended on such  date,  or  included  in certain
      disclosure  materials,   there  exist  no  material  liabilities  (whether
      contingent or absolute,  matured or unmatured,  known or unknown) of Orion
      or any  subsidiary of Orion and (v)  immediately  prior to the date of the
      Exchange,  Orion  Newco will have no  liabilities  (other  than de minimis
      liabilities  relating  to Orion  Newco's  formation,  any  liabilities  or
      obligations  relating to the Exchange  Agreement and any  liabilities  for
      expenses  relating  to  the  transactions  contemplated  by  the  Exchange
      Agreement).  Orion also has made  several  representations  regarding  tax
      filings and payments,  maintenance of account books,  litigation,  filings
      with the Commission, transactions with Exchanging Partners and the absence
      of  certain   violations.   The  representations  and  warranties  of  the
      Exchanging  Partners and Orion contained in the Exchange Agreement survive
      the date of the Exchange and any investigation, audit or inspection at any
      time made by or on behalf of any party thereto.

    o Covenants.  The Exchange  Agreement contains a number of covenants whereby
      Orion  and  OrionSat,  jointly  and  severally  on the one  hand,  and the
      Exchanging Partners, severally and not jointly on the other hand, covenant
      and  agree  with each  other,  among  other  things,  that:  (i) Orion and
      OrionSat  shall take all  measures  reasonably  necessary  or advisable to
      secure such consents,
                                       44
<PAGE>
      authorizations  and approvals of  governmental  authorities and of private
      persons or entities with respect to the  transactions  contemplated by the
      Exchange  Agreement,  and the performance of all other  obligations of the
      parties  thereunder,  as may be  required  by any  applicable  statute  or
      regulation  of  the  United   States  or  any  country,   state  or  other
      jurisdiction  or by any  agreement of any kind  whatsoever to which any of
      them is a party or by which  any of them is bound  and which are set forth
      in  a  schedule  to  the  Exchange  Agreement,  (ii)  subject  to  certain
      provisions of the Exchange Agreement, OrionSat and the Exchanging Partners
      shall take all measures  reasonably  necessary or advisable to secure such
      consents,  authorizations and approvals of governmental authorities and of
      private persons or entities with respect to the transactions  contemplated
      by the Exchange Agreement, and to the performance of all other obligations
      of such parties  thereunder,  as may be required by any applicable statute
      or  regulation  of the  United  States  or any  country,  state  or  other
      jurisdiction  or by any  agreement of any kind  whatsoever to which any of
      them is a party or by which any of them is bound (Orion,  OrionSat and the
      Exchanging  Partners agreeing to (a) cooperate in the filing of all forms,
      notifications,  reports and  information,  if any,  required or reasonably
      deemed advisable pursuant to applicable  statutes,  rules,  regulations or
      orders of any  governmental or  supragovernmental  authority in connection
      with the transactions  contemplated by the Exchange  Agreement and (b) use
      their  respective  good  faith  efforts  to cause any  applicable  waiting
      periods  thereunder  to  expire  and any  objections  to the  transactions
      contemplated  by  the  Exchange  Agreement  to  be  withdrawn  before  the
      Exchange) and (iii) Orion shall take all measures reasonably  necessary or
      advisable to secure all  required  consents of the  stockholders  of Orion
      (including the consent of holders of Orion Senior  Preferred Stock) to the
      Merger, the Exchange and any related  transactions  requiring  stockholder
      consent.

    o Indemnification. In the Exchange Agreement, Orion and OrionSat have agreed
      jointly and severally  (and Orion agrees to bind Orion Newco pursuant to a
      separate indemnity agreement) to indemnify,  defend and hold harmless each
      of the Exchanging  Partners and their  respective  affiliates,  employees,
      representatives,  agents,  officers and directors  (collectively,  the "EP
      Indemnified  Persons") from and after the date of the Exchange against and
      in respect of all Claims (as defined in the Exchange  Agreement)  asserted
      against,  resulting  to,  imposed  upon  or  incurred  by  any  of  the EP
      Indemnified  Persons  (whether  such  Claims are by,  against or relate to
      Orion  Newco,  Orion or OrionSat  or any other  party,  including  without
      limitation, a governmental entity),  directly or indirectly,  by reason of
      or  resulting  from  any of the  following:  (i) any of the  matters  with
      respect to which Orion  Newco,  Orion and  OrionSat  would be obligated to
      indemnify  the EP  Indemnified  Persons  under  certain  provisions of the
      Partnership  Agreement  or (ii) any Claims  asserted by one or more of the
      Banks or Chase, or their successors or assigns, arising from and after the
      date  of  the  Exchange  under  (x)  any  of the  Capacity  Agreements  or
      guarantees  relating  thereto which are terminated on or prior to the date
      of the Exchange, (y) any agreements or other documents terminated or to be
      terminated in connection  with the Bank  Agreement  Termination or (z) the
      Exchange  Agreement,  in each case  excluding  any Claims  arising from or
      relating to any breach of any  representation of warranty or noncompliance
      with any condition or other  agreement given or made by any EP Indemnified
      Persons under any of the agreements or documents referred to above in this
      paragraph or any document  furnished by or on behalf of any EP Indemnified
      Person  pursuant  thereto.  The obligation and liabilities of Orion Newco,
      Orion and OrionSat with respect to their respective  indemnities  pursuant
      to the Exchange  Agreement are subject to certain  conditions as set forth
      in the Exchange Agreement.

CLOSING OF THE EXCHANGE; AMENDMENT AND TERMINATION OF THE EXCHANGE AGREEMENT

   If the Merger  Agreement  is ratified by Orion's  stockholders  and the other
conditions to completion of the Exchange are satisfied, the Exchange is to occur
at a time and  date  proposed  by  Orion  not  more  than  ten  days  after  the
satisfaction  or waiver of all  conditions to  completion  of the  Exchange.  No
amendment or  modification  of the Exchange  Agreement  will be valid or binding
unless set forth in writing and duly executed and delivered by the party against
whom  enforcement  of the  amendment  or  modification  is sought.  The Exchange
Agreement may be  terminated  at any time before the Exchange  takes place under
various circumstances,  principally the failure to meet all of the conditions to
completion of the Exchange by a
                                       45
<PAGE>
specified date (which is currently April 30, 1997), if either Orion and OrionSat
or the Exchanging Partners  collectively (as to all Exchanging  Partners) or one
or more Exchanging  Partners (as to such Exchanging  Partners only) give written
notice of termination to the other parties to the Exchange Agreement;  provided,
however,  that the  terminating  party is not in  breach of any  obligations  or
agreements  under the Exchange  Agreement that are causing any of the conditions
precedent  to the  Exchange  not to be  satisfied.  In the  event  the  Exchange
Agreement  is  terminated  (other  than  as to  less  than  all  the  Exchanging
Partners), the Exchange Agreement shall become wholly void and of no effect, and
the parties shall be released from all future obligations thereunder, subject to
certain provisions relating to confidentiality and the payment of expenses which
will remain in effect.

CLOSING AFTER JANUARY 30, 1997

   If the Exchange closes after January 30, 1997,  Orion Newco will be obligated
to make cash refunds,  on or shortly after the closing date, of payments made by
the  Exchanging  Partners  after  that date  under  the Orion 1 Credit  Facility
Support; if Orion Newco does not have sufficient cash to make such refunds,  the
refunds will be made in shares of Orion Newco Series C Preferred  Stock, and the
number of shares issued in the Exchange will increase. The determination whether
Orion  Newco has  sufficient  cash will be made  assuming  proceeds of the Notes
Offering and the Debenture  Investments  are applied to the following  uses: (i)
repayment of the Orion 1 Credit Facility and various other obligations  relating
thereto,  (ii) $49.4  million of initial  payments  under the Orion 2  Satellite
Contract in 1997, (iii) $13 million of incentive payments to Matra Marconi Space
with respect to Orion 1, (iv) $3.5 million of payments to STET upon repayment of
the Orion 1 Credit Facility, (v) an amount for working capital not to exceed $10
million and (vi) certain  other costs and expenses not to exceed $14.3  million.
If the amount of gross proceeds of the Notes Offering is as large or larger than
that presently  anticipated by the Company,  all payments made by the Exchanging
Partners after January 30, 1997 under the Orion 1 Credit  Facility  Support will
be refunded  in cash and the number of shares  issued in the  Exchange  will not
increase.

ACCOUNTING TREATMENT

   The Exchange will be accounted  for as an  acquisition  of minority  interest
using the purchase method of accounting. As a result, the assets and liabilities
of Orion  Atlantic  will be  revalued to fair value to the extent of the Limited
Partners' interests acquired as a result of the Exchange.

DESCRIPTION OF THE ORION NEWCO SERIES C PREFERRED STOCK

   Pursuant to the Exchange  Agreement,  Orion has agreed that prior to the date
of the  Exchange,  Orion Newco will have filed a  Certificate  of  Designations,
Rights  and  Preferences  of  Series  C  6%  Cumulative  Redeemable  Convertible
Preferred Stock with the State of Delaware (the  "Certificate of  Designations")
establishing  the terms and relative  rights and  preferences of the Orion Newco
Series C Preferred  Stock.  According to the  Certificate of  Designations,  the
terms of the Orion Newco Series C Preferred Stock are as follows:

   Dividends.  Subject  to the  preferential  rights of Orion  Newco's  Series A
Preferred Stock and Orion Newco's Series B Preferred Stock ranking senior to the
Orion Newco Series C Preferred Stock, the record holders of Orion Newco Series C
Preferred  Stock will be  entitled  to receive  dividends  at the rate of 6% per
annum,  payable  exclusively  (except in the event of a Liquidation,  as defined
below) in Orion  Newco  Common  Stock.  Dividends  will  accrue on a daily basis
commencing  on the  date of  issuance  of each  share of  Orion  Newco  Series C
Preferred  Stock at the simple  interest  rate of 6% per annum of the $1,000 per
share  value  thereof.  The  number  of  shares  of  Orion  Newco  Common  Stock
distributable  in a dividend  on each share of Orion  Newco  Series C  Preferred
Stock is  calculated  based on the market  price of such  stock  under a formula
provided in the Certificate of Designations.

   Liquidation  rights.  Subject  to the  liquidation  rights  contained  in the
Certificate of Designations, Rights and Preferences for the Orion Newco Series A
Preferred Stock and the Certificate of Designations,  Rights and Preferences for
the Orion Newco Series B Preferred Stock, in the event of any liqui-
                                       46
<PAGE>
dation, dissolution or winding up of Orion Newco (a "Liquidation"),  each holder
of Orion Newco Series C Preferred Stock will be entitled to be paid,  before any
distribution  or payment is made upon the Orion Newco  Common Stock or any other
series or class of stock of Orion Newco ranking junior to the Orion Newco Series
C  Preferred  Stock,  an amount in cash  equal to the  greater of (a) $1,000 per
share (plus an amount equal to all accrued and unpaid  dividends)  of all shares
of Orion Newco  Series C  Preferred  Stock held by such holder or (b) the amount
which would be  distributed  with  respect to the shares of Orion  Newco  Common
Stock (including  fractional shares for purposes of this calculation) into which
such shares of Orion Newco Series C Preferred  Stock are  convertible  (assuming
conversion of all outstanding Orion Newco Series C Preferred Stock)  immediately
prior to the record date for such  distribution  (or, if there is no such record
date, then the date as of which the holders of Orion Newco Common Stock entitled
to such  distribution are  determined),  and the holders of Orion Newco Series C
Preferred Stock shall not be entitled to any further  payment.  If upon any such
Liquidation  Orion  Newco's  assets to be  distributed  among the holders of the
Orion Newco Series C Preferred Stock are  insufficient to permit payment to such
holders of the  aggregate  amount which they are  entitled to be paid,  then the
entire assets to be distributed shall be distributed  ratably among such holders
based upon a value of $1,000 per share (plus all  accrued and unpaid  dividends)
of the Orion Newco Series C Preferred Stock held by each such holder.

   Voting rights.  The holders of the Orion Newco Series C Preferred  Stock will
be entitled to notice of all  stockholders'  meetings in  accordance  with Orion
Newco's  bylaws,  and except as  otherwise  required by law,  the holders of the
Orion  Newco  Series C  Preferred  Stock will be entitled to vote on all matters
submitted  to the  stockholders  for a vote  together  with the holders of Orion
Newco Common Stock and the holders of Orion Newco Senior Preferred Stock, voting
together  as a single  class.  Each share of Orion  Newco  Common  Stock will be
entitled  to one vote  per  share  and each  share  of the  Orion  Newco  Senior
Preferred Stock and Orion Newco Series C Preferred Stock  (including  fractional
shares)  will be entitled to one vote for each whole share of Orion Newco Common
Stock that would be issuable upon conversion of such share of Orion Newco Senior
Preferred Stock and Orion Newco Series C Preferred Stock,  respectively,  at the
time the vote is taken.

   Redemption.  Orion  Newco will be  required  to redeem all of the Orion Newco
Series  C  Preferred  Stock  on  the  25th   anniversary  of  issuance   (2022).
Additionally,  at any  time  after  the  second  anniversary  of the date of the
issuance  of the  Orion  Newco  Series C  Preferred  Stock  under  the  Exchange
Agreement,  or, if prior to such date,  immediately prior to the consummation of
any  consolidation,  merger or sale in which the successor  entity or purchasing
entity is other than Orion Newco,  Orion Newco,  at its option and to the extent
it has funds legally sufficient  therefor,  may redeem the shares of Orion Newco
Series C Preferred Stock then outstanding, in whole or in part, for an aggregate
redemption  price of $1,000 per share  (plus all  accrued  and unpaid  dividends
thereon); provided that, in the event of a partial redemption,  Orion Newco must
redeem the shares of Orion Newco Series C Preferred Stock on a pro rata basis.

   Optional  Conversion  to  Common  Stock.  Holders  of  Orion  Newco  Series C
Preferred Stock will have the right, at any time, to convert all or a portion of
such shares into a number of shares of Orion Newco Common Stock equal to the sum
of: (a) the number of shares of Orion Newco Common Stock computed by multiplying
the number of shares of Orion Newco Series C Preferred  Stock to be converted by
$1,000, and dividing the result by the applicable Conversion Price (as such term
is used in the  Certificate  of  Designations),  initially  $17.50,  subject  to
adjustment, plus (b) the number of shares of Orion Newco Common Stock that would
be payable if all accrued but unpaid  dividends  were  declared  and paid on the
shares of Orion Newco Series C Preferred Stock to be converted.

   Mandatory Conversion to Common Stock. If the closing price of the Orion Newco
Common  Stock over 20 of the 30 prior  trading  days is greater than or equal to
the Conversion Price of $17.50 (subject to adjustment), Orion Newco may require,
by written  notice to all holders of Orion Newco Series C Preferred  Stock,  the
conversion of all of the outstanding Orion Newco Series C Preferred Stock into a
number of shares of Orion Newco Common Stock equal to the sum of: (a) the number
of shares of Orion Newco  Common  Stock  computed by  multiplying  the number of
shares of Orion Newco Series C Preferred  Stock to be  converted by $1,000,  and
dividing the result by the applicable  Conversion Price then in effect, plus (b)
the number of shares of Orion Newco Common Stock that would be payable if all
                                       47
<PAGE>
accrued but unpaid dividends were declared and paid on the shares of Orion Newco
Series C  Preferred  Stock to be  converted.  If Orion  Newco will  require  the
mandatory  conversion  of the Orion Newco  Series C Preferred  Stock  within two
years from the initial  date of  issuance of the Orion Newco  Series C Preferred
Stock,  then the  number of shares of Orion  Newco  Common  Stock into which the
shares of Orion Newco Series C Preferred  Stock are converted  will be increased
by the  number of shares of Orion  Newco  Common  Stock that would be payable if
Orion  Newco were  immediately  to  declare  and pay all  dividends  that in the
absence of conversion  would have accrued on such shares of Orion Newco Series C
Preferred Stock over the six-month period immediately following the date of such
mandatory conversion; provided, however, that the total dividends, including any
additional  amounts  in  respect of  dividends  paid as a result of a  mandatory
conversion,  will not be less  than the  amount of  dividends  that  would  have
accrued on all  outstanding  shares of the Orion Newco Series C Preferred  Stock
during one full year following the date of issuance.

   For  more  information  regarding  the  terms  of the  Orion  Newco  Series C
Preferred  Stock,  stockholders  are referred to the text of the  Certificate of
Designations,  the form of which is attached to this Proxy  Statement/Prospectus
as Attachment C.

REGISTRATION RIGHTS

   The shares of Orion Newco Series C Preferred  Stock are not registered  under
the  Securities  Act and are  being  issued  by Orion  Newco in  reliance  on an
exemption from registration.  Such shares will be deemed "restricted securities"
within the meaning of Rule 144 under the  Securities  Act and may not be sold in
the absence of  registration  under the  Securities  Act unless an  exemption is
available. Concurrently with the Exchange, Orion, Orion Newco and the Exchanging
Partners will enter into a  registration  rights  agreement  (the  "Registration
Rights  Agreement"),  which is made in connection with, and conditioned upon the
consummation  of,  among other  things,  the Merger and the  Exchange.  Further,
pursuant to the Registration  Rights Agreement,  Orion has agreed to cause Orion
Newco to  execute  and  deliver  the  Registration  Rights  Agreement  or a copy
thereof,  at which time  Orion  Newco  will  become a party to the  Registration
Rights  Agreement  and be bound (and have all rights and  obligations  of Orion)
thereunder. In the Registration Rights Agreement, Orion Newco will grant certain
registration rights to the Exchanging Partners, as summarized below.

   Shelf  Registration  Rights.  Pursuant to the Registration  Rights Agreement,
Orion Newco will prepare and as soon as  practicable  (but no later than 15 days
after)  after 180 days have  passed from the date of issuance of the Orion Newco
Series C Preferred Stock (the "Lockup Period"), a "shelf" registration statement
of Orion Newco (the "Initial  Shelf  Registration  Statement")  which covers the
registration  of any and all the  Eligible  Registrable  Securities  (as defined
below)  each  holder  elects  to  include  in  the  Initial  Shelf  Registration
Statement.  Orion Newco will include in the Initial Shelf Registration Statement
all Eligible Registrable Securities,  other than Eligible Registrable Securities
as to which a holder  advises Orion Newco in writing,  at least 15 days prior to
the  expiration  of the Lockup  Period,  that such  holder does not wish to have
included in the Initial Shelf Registration.  Orion Newco will use all reasonable
efforts to have the Initial Shelf  Registration  Statement declared effective by
the  Commission  as soon as  practicable  after  filing.  "Eligible  Registrable
Securities"  includes  the  shares  of the  Orion  Newco  Common  Stock or other
securities  issued or  issuable  upon  conversion  of the Orion  Newco  Series C
Preferred  Stock purchased by the Exchanging  Partners  pursuant to the Exchange
Agreement or issued as dividends or distributions pursuant to the Certificate of
Designations that a holder is eligible to sell under the terms of the applicable
Transfer   Restriction   Agreement   described  below  under  "Certain  Transfer
Restrictions"  (which  constitute 25% of the aggregate number of shares of Orion
Newco  Common  Stock  issuable  upon  conversion  of the  Orion  Newco  Series C
Preferred  Stock received by such  Exchanging  Partner  pursuant to the Exchange
Agreement or as dividends  on such Orion Newco Series C Preferred  Stock).  Such
securities shall cease to be Eligible Registrable Securities when a registration
statement with respect to the  registration of such  securities  shall have been
declared  effective under the Securities Act and such securities shall have been
disposed of pursuant to such registration statement.

   Under the Registration Rights Agreement,  Orion Newco will use all reasonable
efforts to cause to be filed,  during each successive period of not less than 60
and not  more  than  90 days  (as  determined  by  Orion  Newco,  having  regard
principally to coordination of such registration with ongoing business mat-
                                       48
<PAGE>
ters and disclosure  requirements)  following the  effectiveness  of the Initial
Registration  Statement  which  terminates on or before the end of the date five
years  following  the  date  of the  Exchange  (each,  a  "Top-up  Period"),  an
additional  shelf  registration   statement  or,  at  Orion  Newco's  option,  a
post-effective  amendment to any then-effective shelf registration  statement (a
"Top-up Shelf  Registration  Statement")  providing for the  registration of the
shares of the Eligible  Registrable  Securities  that each holder of Orion Newco
Series C Preferred  Stock  elects to include in such Top-up  Shelf  Registration
Statement which have not been registered previously.  Orion Newco is required to
use all reasonable  efforts to have the Top-up  Registration  Statement declared
effective by the Commission as soon as practicable after filing.

   Demand  Registration  of  Underwritten  Offerings.  At any time following the
expiration of the Lockup  Period,  one or more of the holders of the Orion Newco
Series C Preferred  Stock may request  that Orion  Newco  effect a  registration
under the Securities Act of all of their  Eligible  Registrable  Securities in a
sale  of  securities  to  an  underwriter  or  underwriters  of  securities  for
reoffering  to the public (an  "Underwritten  Offering").  Each such request for
registration  must involve  shares worth at least $17.5 million in market value.
Each request for an Underwritten Offering will specify the approximate number of
shares of Eligible  Registrable  Securities  requested to be registered  and the
anticipated  per share  price  range for such  offering.  Within  ten days after
receipt  of any such  request,  Orion  Newco  will give  written  notice of such
requested  demand  registration to all other holders of the Orion Newco Series C
Preferred  Stock  and,   subject  to  certain   restrictions   detailed  in  the
Registration  Rights Agreement,  will include in any such Underwritten  Offering
all  Eligible  Registrable  Securities  with  respect to which  Orion  Newco has
received  written  request  for  inclusion  therein  within 15 days after  Orion
Newco's notice is given.

   Piggyback Registration Rights. If at any time following the expiration of the
Lockup Period,  Orion Newco proposes to effect a registration of the Orion Newco
Common Stock  (whether  for its own account or for the account of others)  under
the Securities Act, other than a shelf or demand registration as described above
or a  registration  of securities in connection  with a business  acquisition or
combination  or an employee  benefit plan (a  "Piggyback  Registration"),  Orion
Newco will give written  notice to all holders of its intention to effect such a
registration  and, subject to certain  provisions  described in the Registration
Rights  Agreement,  will include in such  registration all Eligible  Registrable
Securities with respect to which Orion Newco has received  written  requests for
inclusion  therein  within 15 days after the date Orion Newco's notice is given.
Orion Newco will pay any and all Registration  Expenses (as such term is used in
the  Registration  Rights  Agreement)  incident  to  the  filing  of  each  such
registration statement or otherwise incident to the performance of or compliance
by Orion Newco with the provisions of the Registration Rights Agreement relating
to a such registration.

CERTAIN TRANSFER RESTRICTIONS

   Each  Exchanging  Partner  will enter into a Transfer  Restriction  Agreement
(each, a "Transfer Restriction  Agreement") regarding the transfer of the shares
of Orion Newco Common Stock issuable upon conversion of, or as dividends on, the
Orion  Newco  Series C Preferred  Stock.  Pursuant  to the  applicable  Transfer
Restriction  Agreement,  each Exchanging  Partner may not directly or indirectly
sell, offer,  contract to sell, make any short sale, pledge or otherwise dispose
of ("transfer") any shares of Orion Newco Common Stock issued upon conversion of
shares of Orion Newco  Series C Preferred  Stock or as  dividends  on such Orion
Newco Series C Preferred Stock (the "Affected Shares") without the prior written
consent of Orion Newco during the Lockup Period, unless such sale or transfer is
to an "affiliate" (as such term is defined in Rule 144 under the Securities Act)
of the Exchanging  Partner and does not involve a public  distribution or public
offering or unless any transfer is effected (i) pursuant to a tender or exchange
offer made by or on behalf of Orion Newco or a third party,  (ii) in  connection
with a merger, consolidation, sale of all or substantially of all of the assets,
recapitalization or similar transaction  involving Orion Newco or (iii) pursuant
to a transaction  not  involving a public  distribution  or offering  registered
under the Securities Act and not made through a broker,  dealer or  market-maker
pursuant  to Rule  144  (including  a  pledge  that  meets  such  requirements);
provided,  however,  that prior to any transfer of Affected  Shares under clause
(iii) above and prior to any  transfer of Orion Newco  Series C Preferred  Stock
(other than under the  circumstances  set forth in clause (i) or (ii) above, the
transferee  shall  execute  and  deliver to Orion  Newco a transfer  restriction
agreement substantially simi-
                                       49
<PAGE>
lar to the Transfer Restriction Agreement the transferor originally entered into
and otherwise  reasonably  satisfactory in form and substance to Orion Newco, in
which such transferee  agrees to abide by all of the  restrictions  set forth in
the original Transfer Restriction Agreement.

   Also,  pursuant  to  the  applicable  Transfer  Restriction  Agreement,  each
Exchanging  Partner  agrees that it will not transfer  during any 90-day  period
Affected  Shares  that  collectively  represent  more than 25% of the  aggregate
number of shares of Orion Newco Common Stock  issuable  upon  conversion  of the
Orion  Newco  Series C  Preferred  Stock  received  by such  Exchanging  Partner
pursuant to the Exchange  Agreement or as dividends on such Orion Newco Series C
Preferred Stock (the "25% Limit") unless any such transfer is (i) pursuant to an
underwritten,  public  offering  pursuant to a registration  statement under the
Securities Act, (ii) pursuant to a tender or exchange offer made by or on behalf
of  Orion  Newco  or  a  third  party,   (iii)  in  connection  with  a  merger,
consolidation,  sale of all or substantially all of the assets, recapitalization
or similar  transaction  involving Orion Newco or (iv) pursuant to a transaction
not involving a public  distribution or offering registered under the Securities
Act and is not made through a broker,  dealer or  market-maker  pursuant to Rule
144 (including a pledge that meets such requirements);  provided,  however, that
prior to any  transfer of Affected  Shares  under clause (iv) above and prior to
any  transfer  of Orion  Newco  Series C  Preferred  Stock  other than under the
circumstances set forth in clause (i), (ii) or (iii) above, the transferee shall
execute   and  deliver  to  Orion   Newco  a  transfer   restriction   agreement
substantially  similar to the  Transfer  Restriction  Agreement  the  transferor
originally  entered into (omitting the Lockup Period provision noted above). The
25% Limit  described  above will  terminate on the date that is five years after
the date of  issuance  of the Orion  Newco  Series C  Preferred  Stock under the
Exchange Agreement.

THE DEBENTURE INVESTMENTS

   
   The Debenture Investments will involve the sale of $50 million of convertible
junior  subordinated  debentures (the  "Debentures")  to British  Aerospace (the
"British  Aerospace  Investment")  and the sale of $10 million of  Debentures to
Matra  Marconi  Space (the  "Matra  Marconi  Investment").  Consummation  of the
Debenture Investments is a condition to the closing of the Notes Offering.     

   Terms of Debentures. Under the Debenture Agreement among Orion Newco, British
Aerospace and Matra Marconi Space, the Debentures will mature 15 years following
the date of issuance  and will bear  interest at a rate of 8.75% per annum to be
paid semi-annually in arrears,  commencing August 1, 1997, solely in Orion Newco
Common  Stock at prices  between  $10.21 and $14.00 per share,  depending on the
average  trading  prices of the Orion Newco Common  Stock during the  applicable
measurement  periods.  The Debentures  (and accrued but unpaid  interest) may be
converted  in whole or in part into Orion Newco  Common  Stock at any time at an
initial  conversion  rate of $14.00 per share,  as adjusted  for stock splits or
other  recapitalizations,  certain  dividends  or  issuances  of  stock  to  all
stockholders,  issuances  of stock (or rights to  acquire  stock) at a price per
share below  $14.00,  and other events.  See "Risk Factors -- Risks  Relating to
Merger,  Exchange and  Debenture  Investments  -- Risks  Relating to Orion Newco
Series C Preferred Stock and Debentures."

   
   Orion Newco may at any time (except during 90 days after a change in control)
redeem all or part (but not less than 25% on any one occasion) of the Debentures
for cash  consideration  determined by multiplying the number of shares of Orion
Newco Common Stock issuable upon  conversion of the Debentures (and upon payment
of accrued  but  unpaid  interest  thereon)  by the  greater of (i) the  average
closing price of the Orion Newco Common Stock over the 20 trading days preceding
the  redemption  or (ii)  $17.50 per share.  Alternatively,  Orion Newco has the
right to arrange for the  disposition  of the Orion Newco Common Stock  issuable
upon the conversion of, or as payment of interest on, the Debentures in a public
or private  offering.  In such event, the Debenture  holders will be entitled to
receive  a price  per  share  equal to the  greater  of (a) at least  95% of the
average  closing  price of the Orion Newco Common Stock over the 20 trading days
preceding the disposition or (b) $17.50 per share.  From and after the time when
less than $50 million of Notes remain  outstanding,  in the event of a change of
control of Orion  Newco  (defined as the  acquisition  by any  stockholder  of a
majority of the voting  securities  of Orion  Newco),  either Orion Newco or any
holder of the  Debentures  may,  within 90 days  after such  change of  control,
require the sale of the Debentures, as converted into Orion Newco Com-     
                                       50
<PAGE>
   
mon Stock,  to Orion Newco for a purchase  price equal to the greater of (a) the
price payable in an optional  redemption (as described  above) and (b) the price
paid  to  holders  of  Orion  Newco  Common  Stock  in  the  change  of  control
transaction.  The Notes  Indentures  are expect to contain a covenant which will
effectively prohibit Orion Newco from honoring such right.

   The Debentures will be subordinated to all other indebtedness of the Company,
including the Notes. The Debentures will contain minimal covenants and events of
default so long as $50 million or more of the Notes remain outstanding, but more
extensive covenants and events of default will apply after less than $50 million
of  Notes  are  outstanding.   See  "The  Related   Transactions  --  The  Notes
Offering/Orion 1 Credit Facility Refinancing -- Notes Offering."

   In  connection  with the  Debenture  Investments,  Orion  Newco has agreed to
certain provisions relating to any mandatory redemption by it of the Debentures,
the Orion  Newco  Series C  Preferred  Stock  held by British  Aerospace,  Matra
Marconi or their respective affiliates or the Orion Newco Common Stock issued to
British  Aerospace,  Matra Marconi  Space or their  respective  affiliates  upon
conversion of the  Debentures or the Orion Newco Series C Preferred  Stock or as
payment of interest on the  Debentures  or dividends on the Orion Newco Series C
Preferred  Stock.  Under its Certificate of  Incorporation,  Orion Newco has the
right  mandatorily to redeem the capital stock of any  stockholder to the extent
necessary  to prevent  the loss or secure the  reinstatement  of any  license or
franchise from any governmental  agency.  See "Description of Orion Newco Common
Stock -- Certain Anti-Takeover Effects." Orion Newco has agreed in the Debenture
Agreement  that  in  connection  with  any  such  redemption  of  the  foregoing
securities held by British  Aerospace,  Matra Marconi Space or their  respective
affiliates,  Orion  Newco  will pay an amount for such  securities  equal to the
amount it would have paid if it had effected such redemption  under the terms of
the Debentures or the Orion Newco Series C Preferred  Stock, as the case may be,
which  would  be more  favorable  than the  price  set  forth  in Orion  Newco's
Certificate  of  Incorporation.  Approval of the Debenture  Investments by Orion
stockholders  also will constitute  approval of such provisions in the Debenture
Agreement.     

   The  consummation  of the  Debenture  Investments  is  conditioned  upon  the
following:  (i) completion of the Exchange;  (ii) termination of all obligations
of British Aerospace,  Matra Marconi Space and their respective affiliates under
the  Orion 1 Credit  Facility  Support;  (iii)  receipt  by  Orion  Newco of net
proceeds from the Notes  Offering of at least $225  million;  (iv) Orion Newco's
payment to each of British  Aerospace  and Matra  Marconi Space of its costs and
expenses;  and (v)  acquisition  by Orion  Newco of all of  British  Aerospace's
interest in Orion Asia Pacific in exchange for  approximately  86,000  shares of
Orion Newco Common Stock.

   Matra Marconi will apply certain  satellite  incentive  payments  owing to it
toward  the  purchase  price of the  Debentures.  Under  the  Orion 1  Satellite
Contract,  Matra Marconi,  as the Orion 1  manufacturer,  is entitled to receive
incentive  payments  based  upon  the  performance  of Orion 1 in  orbit.  As of
September 30, 1996, Orion Atlantic had obligations with a present value of $21.7
million with respect to incentive payments.  Orion Newco will pay $13 million in
satellite incentives  following  completion of the Notes Offering,  of which $10
million will be re-invested in Orion Newco by Matra Marconi Space in Debentures.

   
    Registration  Rights.  The shares of Orion Newco Common Stock  issuable upon
conversion  of, or as  dividends  on,  the  Debentures  will have the  following
registration rights.
    

   Orion  Newco  will  be  obligated  to  include  in the  "shelf"  registration
statement  filed with respect to the Orion Newco Series C Preferred Stock (to be
filed approximately six months after such stock is issued) approximately 360,000
shares  of Orion  Newco  Common  Stock  issued as  payment  of  interest  on the
Debentures or previously  issued to British  Aerospace  pursuant to a warrant or
the OAP  Acquisition.  Orion Newco also will prepare and,  within one year after
the date of issuance of the Debentures,  cause to be filed a shelf  registration
statement of Orion Newco which covers the  registration of any and all shares of
Orion Newco Common Stock issuable upon  conversion of the Debentures each holder
elects to  include in such shelf  registration  statement.  If not all shares of
Orion  Newco  Common  Stock  issuable  upon  conversion  of the  Debentures  are
registered  in the initial  shelf  registration  statement,  Orion Newco will be
obligated to file  additional  shelf  registration  statements  to register such
unregistered shares.
                                       51
<PAGE>
   
   Any one or more holders of the Debentures may request that Orion Newco effect
a registration under the Securities Act of all or not less $20 million of shares
of Orion Newco Common Stock  issuable upon  conversion  of the  Debentures in an
underwritten   offering.   Matra   Marconi  Space  may  request  a  single  such
registration of at least $10 million of such shares of Orion Newco Common Stock.
The number of requests is not limited,  but the Company will not be obligated to
effect more than one underwritten  offering in any 12-month period,  or two such
registrations  during  the  12-month  period  in which  the  Company  effects  a
registration  requested by Matra Marconi Space. Orion Newco will pay any and all
Registration  Expenses  (as  such  term  is  used  in  the  registration  rights
agreement)  incident  to  the  filing  of  each  registration  statement  for an
underwritten offering.     

   If Orion Newco  proposes to effect a  registration  of the Orion Newco Common
Stock  (whether  for its own  account or for the  account  of others)  under the
Securities Act, other than a shelf or demand  registration as described above or
a  registration  of  securities  in connection  with a business  acquisition  or
combination or an employee  benefit plan,  Orion Newco will,  subject to certain
provisions  described  in the  registration  rights  agreement,  include in such
registration  all shares of Orion Newco Common Stock issuable upon conversion of
the Debentures with respect to which Orion Newco has received  written  requests
for inclusion  therein.  Orion Newco will pay any and all Registration  Expenses
(as such term is used in the  registration  rights  agreement)  incident  to the
filing  of  each  such  registration  statement  or  otherwise  incident  to the
performance  of or  compliance  by  Orion  Newco  with  the  provisions  of  the
registration rights agreement relating to a such registration.
                                       52
<PAGE>
CORPORATE STRUCTURE AFTER THE TRANSACTIONS

   The following diagram illustrates the effects of the Merger, the Exchange
and the other Transactions on the corporate structure of Orion Newco. The
ownership figures are on a fully diluted basis.
<TABLE>
<CAPTION>
             Exchanging Partners                        Existing Orion                           British Aerospace
         (Excluding British Aerospace)                   Stockholders

<S>                                         <C>                                         <C>                             
              19.8% Ownership                           52.7% Ownership                            27.5% Ownership
(Series C Preferred Stock, Common Stock     (Common Stock, Series A and Series B       (Common Stock, Common Stock Warrants,
 and $10 million Convertible Debentures     Preferred Stock, Common Stock Options           Series C Preferred Stock and
     held by Matra Marconi Space)                 and Common Stock Warrants)             $50 million Convertible Debentures)


                                                             ORION
                                                             NEWCO


                                                             100%
                                                          Ownership


                                                             Orion

 
      100%                          100%                     100%                        100%                    100%
   Ownership                     Ownership                Ownership                   Ownership               Ownership
  Collectively

                                                                                                             Asia Pacific         
                                                                                      Orion Asia              Space and
     Orion                       OrionSat                  OrionNet                    Pacific               Communications
    Atlantic

(Owner and operator                                                                (To be owner and          (Holder of
of Orion 1 and holder                                                            operator of Orion 3)     arrangements with
 of Orion 1 license;                                                                                     Republic of Marshall
  to be owner and                                                                                              Islands)
operator of Orion 2)
</TABLE>
                                       53
<PAGE>
EFFECT OF THE EXCHANGE ON THE CAPITAL STRUCTURE OF ORION NEWCO

   
   As a result  of the  issuance  of  121,988  shares  of Orion  Newco  Series C
Preferred  Stock in the Exchange,  which is  convertible as of the issuance date
into  approximately  6,970,740 shares of Orion Newco Common Stock, the number of
shares of Orion Newco Common Stock  outstanding  on a fully  diluted  basis will
increase by approximately  78% to approximately  25,860,320  shares,  assuming a
closing of the  Exchange on January 30, 1997.  In  addition,  as a result of the
issuance,  certain of the Exchanging Partners will be principal  stockholders of
Orion Newco. See "Security  Ownership of Certain  Beneficial Owners Prior to and
Following the Transactions" below.
    

RECOMMENDATION OF THE BOARD OF DIRECTORS OF ORION

   The Board of Directors unanimously approved (with the British Aerospace Board
representative recusing himself) the terms of the Merger Agreement, the Exchange
Agreement  and the  Debenture  Agreement  and  determined  that the Merger,  the
Exchange and the Debenture  Investments  are in the best  interests of Orion and
its stockholders.  The Board unanimously  recommends (with the British Aerospace
Board  representative   recusing  himself)  that  Orion  stockholders  vote  FOR
ratification of the Merger Agreement and the transactions  contemplated thereby,
FOR  approval  and  adoption  of the  Exchange  Agreement  and the  transactions
contemplated thereby, and FOR approval of the Debenture  Investments.  The Board
believes that the Merger  Transactions and the Debenture  Investments are in the
best  interests  of  Orion  stockholders  because  they  will  simplify  Orion's
organizational  structure and improve Orion's access to the capital markets. The
reasons  for the  Board's  recommendation  are  discussed  more fully  under the
captions  "Background of the Merger Transactions and the Debenture  Investments"
and "Reasons for the Merger Transactions and the Debenture Investments" above.

OPINION OF ORION'S FINANCIAL ADVISOR

   Salomon  Brothers has rendered to the Board of Directors of Orion its written
opinion dated December 10, 1996 (the "Salomon  Brothers  Opinion")  that,  based
upon and subject to the various  considerations set forth in the opinion,  as of
December 10, 1996, the  consideration to be paid by Orion in connection with the
Exchange was fair from a financial point of view to Orion.  No limitations  were
imposed by the Board of  Directors  upon  Salomon  Brothers  with respect to the
investigations  made or the procedures  followed by it in rendering its opinion.
Salomon  Brothers  was not  requested  by the  Board  of  Directors  to make any
recommendation  as to the form or  amount of  consideration  to be paid by Orion
pursuant to the Exchange  Agreement,  which issues were resolved in arm's-length
negotiations between Orion and the Exchanging Partners. Salomon Brothers was not
asked to express an opinion, and did not express any opinion, with regard to the
Notes Offering, the Orion 1 Credit Refinancing,  the Debenture Investments,  the
Orion 2 Satellite Contract, the Orion 3 Satellite Contract or the Merger.

   The full text of the Salomon Brothers  Opinion,  which sets forth assumptions
made, matters  considered and limitations on the review undertaken,  is attached
hereto as  Attachment  D.  Stockholders  of Orion are urged to read the  opinion
carefully   and   in   its   entirety   in    conjunction    with   this   Proxy
Statement/Prospectus.  The Salomon Brothers Opinion  addresses only the fairness
of the  consideration  to be paid in the Exchange from a financial point of view
and does not constitute a  recommendation  to any stockholder of Orion as to how
such  stockholder  should vote on the  Merger,  the  Exchange  or the  Debenture
Investments. The summary of the Salomon Brothers Opinion set forth in this Proxy
Statement/Prospectus  is qualified in its entirety by reference to the full text
of such opinion.

   In rendering the Salomon Brothers Opinion,  Salomon Brothers reviewed certain
publicly  available  information  relating  to Orion,  as well as certain  other
information,  including financial  projections,  provided to Salomon Brothers by
Orion,  discussed the past and current  operations  and financial  condition and
prospects  of Orion and Orion  Atlantic  with members of the  respective  senior
managements of such entities and considered  such other  information,  financial
studies,  analyses,  investigations and financial,  economic, market and trading
criteria which Salomon Brothers deemed relevant.

   In  rendering  its  opinion,  Salomon  Brothers  assumed  and relied upon the
accuracy and completeness of the information it reviewed for the purpose of such
opinion and did not assume any  responsibility  for independent  verification of
any of such information or for any independent evaluation or appraisal of
                                       54
<PAGE>
the  assets  of Orion or Orion  Atlantic.  With  respect  to  Orion's  and Orion
Atlantic's  financial  projections,  Salomon Brothers assumed that they had been
reasonably  prepared on bases reflecting the best currently  available estimates
and judgments of Orion's or Orion Atlantic's management,  as the case may be, as
to the future financial  performance of their respective  businesses,  and while
Salomon  Brothers  expressed no opinion  with  respect to such  forecasts or the
assumptions on which they were based,  Salomon  Brothers  relied on management's
assumption  that  the  Notes  Offering,  the  Orion 1  Credit  Refinancing,  the
Debenture Investments,  the Orion 2 Satellite Contract and the Orion 3 Satellite
Contract would occur or be executed,  each as the case may be, concurrently with
the  Exchange.  Salomon  Brothers  assumed  that the Exchange  would  qualify as
tax-free under Section 351 of the Code.

   The Salomon  Brothers Opinion was necessarily  based on economic,  market and
other  conditions as in effect on, and the information made available to Salomon
Brothers as of, the date of such opinion and did not address Orion's  underlying
business  decision to effect the Exchange or constitute a recommendation  to any
holder  of Orion  Common  Stock  concerning  the  Merger,  the  Exchange  or the
Debenture  Investments.   The  Salomon  Brothers  Opinion  does  not  imply  any
conclusion as to the likely trading range of Orion Newco Common Stock  following
the  consummation  of the  Exchange,  which may vary  depending  on, among other
factors,  changes in interest rates, dividend rates, market conditions,  general
economic  conditions  and other  factors that  generally  influence the price of
securities.

   The  following  is a summary of the report (the  "Salomon  Brothers  Report")
presented by Salomon Brothers to the Board of Directors of Orion on December 10,
1996, in connection with the rendering of the Salomon Brothers Opinion:

   Discounted  Cash  Flow  Analysis.  Using an  unlevered  discounted  cash flow
("DCF") methodology,  Salomon Brothers examined management's 10-year projections
for each of Orion 1, Orion 2 and Orion 3. Salomon  Brothers' DCF analysis relied
on management's  assumption that its business plan would be executed,  including
that the financings  contemplated in such business plan would occur as required.
Salomon Brothers  calculated  terminal values for each such satellite at the end
of the  projection  period,  assuming its  replacement  at the end of its usable
life, by reference to the average tax-effected earnings before interest,  taxes,
depreciation  and  amortization  ("EBITDA")  for  the  last  five-years  of  the
projection  period  less the  average  capital  expenditures  over the life of a
current  specification  satellite.  Salomon  Brothers  then  used  a  cash  flow
perpetuity  approach  and  assumed a steady  nominal  growth  rate of 3-5% and a
discount rate (equal to Salomon  Brothers'  estimate of Orion's weighted average
cost of capital  ("WACC") once Orion's  business  reaches  maturity) of 11.5% to
calculate terminal values. For reference,  Salomon Brothers then converted these
terminal  values to implied ranges of EBITDA  terminal  multiples for Orion 1 of
6.2x to 8.1x, for Orion 2 of 5.7x to 7.5x and for Orion 3 of 5.4x to 7.1x (which
were  at the  low  end of the  range  of  terminal  multiple  estimates  used by
independent  equity  research  analysts  for  satellite  companies  with similar
capital spending characteristics). With respect to projected cash flows over the
projection period, Salomon Brothers used discount rates of 15% to 20% through to
the end of the  projection  period  for Orion 1 and  discount  rates of 17.5% to
22.5% through to the end of the projection period for Orion 2 and Orion 3. These
discount  rates were  selected  primarily  based upon ranges cited for satellite
companies'  WACC in  independent  equity analyst  research  reports for publicly
traded satellite companies.  A higher discount rate was selected for Orion 2 and
Orion 3 because these  satellites  are in an earlier stage of  development  than
Orion 1.  Salomon  Brothers  also  analyzed  the  implied  WACCs  for a group of
publicly traded satellite companies based on their respective capital structures
and equity security trading histories.  However,  due to the limited time period
over which  these  securities  were  traded,  Salomon  Brothers  concluded  that
reliance on this analysis was inappropriate.

   Using its DCF methodology, Salomon Brothers calculated (i) a range of implied
values of $127.2 million to $337.2 million for the Exchanging  Partners'  equity
interest in Orion  Atlantic  and (ii) a range of equity  values for each current
share of Orion Common Stock of $12.79 to $32.37.

   Salomon Brothers also analyzed this DCF valuation in the context of the Orion
Common Stock price as of December 9, 1996, to determine the relationship between
Orion's market  capitalization and the theoretical equity value of Orion derived
from the DCF analysis  described above.  This ratio of market  capitalization to
theoretical equity value ranged from 98.7% (assuming low side DCF value) to
                                       55
<PAGE>
39% (assuming high side DCF value).  Applying these ratios to Salomon  Brothers'
DCF value range for Orion  Atlantic  yielded a value range of $125.5  million to
$131.5 million for the Exchanging  Partners' 58.3% limited partnership  interest
in Orion Atlantic.

   Precedent  Transaction  Analysis.  As part of its analysis,  Salomon Brothers
reviewed two recent acquisition  transactions involving satellite companies: (i)
Orion Atlantic's  redemption of STET's interest and Orion's subsequent  purchase
of a new  interest  from  Orion  Atlantic  and (ii) the  acquisition  by  Hughes
Corporation  ("Hughes")  of PanAmSat.  To estimate the value of Orion  Atlantic,
Salomon  Brothers  analyzed  the  redemption  of  STET's  interest  and  Orion's
subsequent  purchase of a new interest from Orion  Atlantic to derive a range of
implied  values (i) of Orion  Atlantic of $138.1 million to $180.1 million based
upon  consideration  paid by Orion valued at $11.5  million to $15.0 million for
STET's 8.33% limited partnership  interest and (ii) of the Exchanging  Partners'
limited  partnership  interests in Orion Atlantic of $80 million to $104 million
at the time of the transaction. If the additional capital, totaling $47 million,
invested by the  Exchanging  Partners  since the STET  redemption is included in
this valuation analysis, the range of implied values of the Exchanging Partners'
limited  partnership  interests in Orion  Atlantic  increases to $127 million to
$151 million.

   Salomon  Brothers  also  reviewed  the Hughes  acquisition  of  PanAmSat  and
examined  the ratio of firm  value  (i) to  latest  twelve  months  ("LTM")  and
projected  3-year  forward  revenues,  (ii) to LTM and projected  3-year forward
EBITDA and (iii) to LTM and projected  3-year forward  earnings  before interest
and taxes  ("EBIT").  Based on these ratios and the limited  public  information
available  with  respect to  PanAmSat,  Salomon  Brothers  estimated  a range of
implied  values of the Exchanging  Partners'  limited  partnership  interests in
Orion  Atlantic of $91 million to $420 million.  However,  in Salomon  Brothers'
judgment,  the PanAmSat  transaction was not entirely comparable to the Exchange
in most respects,  primarily because PanAmSat is a less highly leveraged company
than  Orion  and is not in a  similarly  early  stage  of  development.  Salomon
Brothers also reviewed  several other recently  completed merger and acquisition
transactions in the satellite sector, none of which were useful in its analysis.

   Public Market Trading  Analysis.  Salomon Brothers also performed an analysis
in which  it  compared  certain  publicly  available  historical  financial  and
operating data and market statistics of selected satellite companies (calculated
based on closing  stock prices as of December 9, 1996,  for the publicly  traded
companies,  and assuming  the midpoint of the filing range for the  then-pending
initial public offering for APT Satellite  Holdings Limited ("APT  Satellite")).
The  stock  market  performance  of  satellite  companies  varies  significantly
depending on, among other things, stages of development, geographic location and
segments of operation. Accordingly, no company used in the Public Market Trading
Analysis  was  fully  comparable  to Orion in most  material  respects.  Salomon
Brothers  selected  Echostar  Communications   Corporation   ("Echostar"),   APT
Satellite  and  American  Mobile  Satellite  Corporation  ("AMSC")  as the  most
comparable  to Orion.  Although  Echostar and AMSC operate in segments  that are
different from those of Orion, they are each in stages of development similar to
that of Orion. Salomon Brothers examined firm value to LTM revenue multiples for
Echostar (8.7x), APT Satellite (12.0x) and AMSC (21.0x) and noted that, based on
these  multiples,  (i) the total  implied  equity  value of Orion  Atlantic  was
estimated  to range from $120  million to $636  million and (ii) the  Exchanging
Partners'  limited  partnership  interests in Orion  Atlantic were  estimated to
range in value from $70 million to $371 million.

   Historical  Trading  Analysis.  As part  of its  analysis,  Salomon  Brothers
examined  the  historical  stock  market  performance  of Orion in relation to a
composite index of common stock of selected satellite  companies  (consisting of
PanAmSat,   United  States  Satellite  Broadcasting  Company,  Inc.,  Globalstar
Telecommunications  Limited, AMSC, Echostar,  Asia Satellite  Telecommunications
Holdings Limited and P.T.  Pasifik Satellit  Nusantara) and the Nasdaq Composite
Index and the relationship  between price movements thereof over the period from
August 1, 1995 to  December  6, 1996.  Salomon  Brothers  observed  that for the
entire  period  the Orion  Common  Stock  underperformed  the index of  selected
satellite   companies  and  the  Nasdaq   Composite  Index  in  terms  of  price
appreciation.

   Salomon Brothers also noted that Orion's  historical  Common Stock price (and
corresponding firm value) could be deconstructed to estimate the amount of value
historically attributed by the public equity market to Orion Atlantic, using the
simplifying assumption that nominal value was attributed to
                                       56
<PAGE>
Orion 3. On this basis,  Salomon  Brothers  concluded  that  Orion's  historical
Common  Stock price range of $6.75 to $14.75 per share could be  interpreted  as
implying a market  valuation for the Exchanging  Partners'  limited  partnership
interests in Orion Atlantic of $47.3 million to $219.0 million.

   Convertible  Security  Valuation.   Using  options  pricing  theory  and  the
discounted  present  value  of  probabilistically  adjusted  dividends,  Salomon
Brothers  arrived at a range of values for the Orion  Newco  Series C  Preferred
Stock of $83 million to $106 million. This value was based on a range of assumed
prices for Orion Common Stock of $10 to $14 per share at the time of issuance of
the Orion Newco  Series C Preferred  Stock,  the Orion Newco  Series C Preferred
Stock's  dividend yield,  its conversion  price and liquidation  value,  Orion's
share price  volatility and the mean expected return on Orion Common Stock,  and
reflects the unique  characteristics of the Orion Newco Series C Preferred Stock
which distinguish it from conventional  convertible preferred stocks. Several of
these parameters required Salomon Brothers to make certain subjective judgments.

   The preparation of a fairness  opinion is not susceptible to partial analysis
or summary  description.  Salomon  Brothers  believes  that its analyses and the
summary  set  forth  above  must be  considered  as a whole  and that  selecting
portions of its analyses and the factors  considered by it, without  considering
all such analyses and factors, or of the above summary,  without considering all
factors  and  analyses,  could  create  an  incomplete  view  of  the  processes
underlying  the  analyses  set forth in the  Salomon  Brothers  Opinion  and the
Salomon  Brothers  Report.  Salomon  Brothers has not indicated  that any of the
analyses  which it  performed  had a greater  significance  than any other.  The
ranges of valuations  resulting from any  particular  analysis  described  above
should not be taken to be the view of Salomon  Brothers  of the actual  value of
Orion and Orion  Atlantic.  In performing  its analyses,  Salomon  Brothers made
numerous  assumptions with respect to industry  performance,  general  business,
financial,  market and economic conditions and other matters,  many of which are
beyond the control of Orion or Orion Atlantic. The analyses performed by Salomon
Brothers  are not  necessarily  indicative  of actual  values  or actual  future
results,  which may be  significantly  more or less  favorable than suggested by
such analyses.  Such analyses were prepared solely as part of Salomon  Brothers'
analysis  of the  fairness  to Orion,  from a  financial  point of view,  of the
consideration  to be paid in the  Exchange.  In addition,  analyses  relating to
value of  businesses do not purport to be appraisals or to reflect the prices at
which a business  actually might be sold, or the prices at which a company might
actually be sold, or the prices at which  securities  might trade at the present
time or at any time in the future.

   Salomon Brothers is an  internationally  recognized  investment  banking firm
that provides  financial  services in  connection  with a wide range of business
transactions. As part of its business, Salomon Brothers regularly engages in the
valuation of  companies  and their  securities  in  connection  with mergers and
acquisitions,   negotiated   underwritings,   competitive  biddings,   secondary
distributions of listed and unlisted  securities and private  placements and for
other  purposes.  The Board of  Directors  retained  Salomon  Brothers  based on
Salomon  Brothers'  expertise  in the  valuation  of  companies,  as well as its
familiarity with Orion and other satellite companies.  Salomon Brothers,  in the
ordinary course of its business,  may actively trade the securities of Orion for
its own account and for the accounts of customers, and, accordingly,  may at any
time hold a long or short  position in such  securities.  Salomon  Brothers  may
continue to provide  investment  banking  services to Orion Newco in the future.
Salomon  Brothers has, in the past, and in return for customary  fees,  rendered
certain investment  banking and financial advisory services to Orion,  including
acting  as lead  underwriter  to Orion in  connection  with its  initial  public
offering of Orion  Common  Stock in August  1995.  Orion paid  Salomon  Brothers
$688,490  in  connection  with  Salomon  Brothers'  participation  in  the  1995
Financing.  This amount consisted principally of reimbursement of costs incurred
by Salomon Brothers.

   Pursuant to a letter  agreement,  dated  April 10,  1996,  between  Orion and
Salomon  Brothers,  Orion agreed to pay Salomon Brothers the following fees: (i)
$250,000, which was paid upon execution by Orion of such letter agreement;  (ii)
$500,000,  which was paid upon delivery of the Salomon  Brothers  Opinion to the
Board  of  Directors;  and  (iii) an  additional  $1,000,000,  payable  upon the
successful   completion  of  the   financing   transactions   which   facilitate
consummation  of the  Exchange and the  construction  of Orion 2 and Orion 3. In
addition,  Orion agreed to indemnify and hold harmless  Salomon Brothers and its
affiliates, their respective directors,  officers, agents and employees and each
person, if
                                       57
<PAGE>
any,  controlling  Salomon  Brothers or any of its  affiliates  against  certain
liabilities and expenses,  including  liabilities  under the federal  securities
laws, incurred in connection with its services.

APPROVALS

   Orion is aware of no governmental  approvals required for consummation of the
Merger, the Exchange and the Debenture  Investments,  other than compliance with
federal  securities  laws and state  securities or "Blue Sky" laws. The Board of
Directors is seeking  stockholder  ratification of the Merger  Agreement and the
transactions contemplated thereby, including the Merger, stockholder approval of
the Exchange Agreement and the transactions contemplated thereby,  including the
Exchange,  and  stockholder  approval  of the  Debenture  Investments.  See "The
Special Meeting -- Voting Rights and Related Matters" and "-- Votes Required."

FEES AND EXPENSES

   In general,  whether or not the Merger  Transactions  are  consummated,  each
party to the Merger Agreement and the Exchange Agreement will bear its own costs
and expenses  incurred in  connection  with the Merger  Agreement,  the Exchange
Agreement and the  transactions  contemplated  thereby,  except certain expenses
incurred in connection with the Salomon Brothers  Opinion.  Orion or Orion Newco
will bear all expenses associated with the Debenture Investments.

CERTAIN FEDERAL INCOME TAX CONSEQUENCES

   Set forth below is a summary of certain federal income tax consequences under
the  Internal  Revenue  Code  of  1986,  as  amended  (the  "Code"),   to  Orion
stockholders  (the  "Transferors")  whose  common and  preferred  stock of Orion
("Orion  Stock") is  converted  into common and  preferred  stock of Orion Newco
("Orion Newco  Stock")  pursuant to the Merger.  The following  summary does not
deal with all aspects of federal  taxation  that might be relevant to particular
Transferors,  nor does the summary address any foreign, state, local, estate, or
gift tax aspects. In addition,  the summary addresses only those Transferors who
hold their Orion Stock as a capital asset.  In view of the individual  nature of
tax  consequences,  Transferors are urged to consult with their own tax advisors
regarding  the specific tax  consequences  to them of the Merger,  including the
applicability of federal, state, local and foreign tax laws.

   On January 6, 1997,  Ernst & Young LLP,  tax  advisor to Orion,  rendered  an
opinion ("Tax Opinion") that the Merger Transferors will have the opportunity to
qualify for  nonrecognition  treatment because the Merger will qualify either as
(i) a reorganization  pursuant to Section 368(a) of the Code or (ii) an exchange
satisfying  the  requirements  of Section 351(a) of the Code,  provided  certain
requirements  (discussed  below) are met. In rendering its Tax Opinion,  Ernst &
Young  LLP  relied   upon   certain   representations   made  by  Orion,   which
representations  Ernst & Young LLP has not independently  verified,  and the Tax
Opinion is further based upon certain  limitations  summarized below.  Moreover,
the Tax Opinion is not binding on the Internal  Revenue Service ("IRS") nor does
it preclude the IRS from adopting a contrary position.  The Tax Opinion is based
on provisions of the Code, income tax regulations,  and  administrative  rulings
and  court  decisions  existing  as of the  date of the Tax  Opinion.  All  such
provisions are subject to change which changes may be retroactive. Ernst & Young
LLP is not responsible for notifying Orion or the Merger Transferors of any such
change which may occur subsequent to the date of the Tax Opinion.

   Except as otherwise  noted,  the summary  below  assumes that the Merger will
qualify either as a reorganization  pursuant to Section 368(a) of the Code or as
an exchange  satisfying the  requirements  of Section 351(a) of the Code,  based
upon such Tax Opinion. Subject to the limitations and qualifications referred to
herein, the Tax Opinion addresses and is limited to the following federal income
tax consequences for the Merger Transferors:

    (a) Transferors  will  recognize  no gain or loss  in  connection  with  the
        receipt of shares of Orion Newco  Stock in exchange  for shares of Orion
        Stock in the Merger.
                                       58
<PAGE>
    (b) Each  Transferor's  tax  basis in the  shares  of Orion  Newco  Stock it
        receives  will  be  equal  to its  tax  basis  in  the  Orion  Stock  it
        transferred to Orion Newco.

    (c) The  holding  period for the Merger  Transferor's  shares of Orion Newco
        Stock will include the Merger  Transferor's  holding period in its Orion
        Stock.

Although  the summary  below  addresses  certain tax issues in addition to those
noted in (a) through (c) above, Ernst & Young LLP's Tax Opinion does not address
such additional tax issues.

   If the  Merger  does not  qualify  for  tax-free  treatment,  (a) the  Merger
Transferors will recognize gain or loss equal to the difference between the fair
market value on the date of the Merger of the Orion Newco Stock they receive and
their tax basis in the Orion Stock they transfer; (b) the tax basis of the Orion
Newco Stock received by each Transferor will equal the fair market value of that
stock on the date of the Merger;  and (c) the  holding  period for each share of
Orion Newco Stock will begin on the day following the date of the Merger.

   Even assuming the Merger qualifies as a tax-free  reorganization or exchange,
holders of Orion  preferred  stock with  dividends  in arrears  might be treated
under Section  305(c) of the Code as  recognizing  ordinary  income (for which a
dividend received  deduction may be available to certain corporate holders) as a
consequence  of the  exchange  of their  Orion  preferred  stock for Orion Newco
preferred  stock in the Merger,  to the extent of the least of (i) the  earnings
and profits of Orion Newco (which likely will include the  accumulated  earnings
and profits of Orion,  if any, as of the close of the taxable  year in which the
Merger is completed),  (ii) the amount of the dividend arrearage with respect to
the Orion preferred  stock, or (iii) the amount by which the greater of the fair
market  value or  liquidation  preference  of the Orion  Newco  preferred  stock
exceeds the issue price of the Orion preferred stock.  However,  the recognition
of  ordinary  income  generally   applies  only  to  exchanges   pursuant  to  a
"recapitalization."    Because   the   Merger    should   not    constitute    a
"recapitalization"  within the meaning of Section  368(a)(1)(E) of the Code, and
because  Orion does not expect Orion or Orion Newco to have any  accumulated  or
current  earnings and profits for the taxable  year in which the Merger  occurs,
Orion does not believe the risk of recognizing ordinary income on an exchange of
Orion  preferred  stock for Orion  Newco  preferred  stock will be  significant.
However,  there  can be no  assurance  that the IRS or a court  considering  the
question will not disagree with Orion's determinations.

   Holders of Orion  preferred  stock should also note that,  if the  redemption
price (including any dividend  arrearage on the date of the Merger) of shares of
Orion Newco  preferred  stock  exceeds the issue  price of those  shares  (which
generally  will be the fair  market  value of the Orion Newco  preferred  stock,
appropriately adjusted to reflect any income recognized by holders under Section
305(c) of the Code in  connection  with the Merger,  as  discussed  above),  the
excess  redemption  price  generally will be taxable to the holders of the Orion
Newco  preferred  stock  as  ordinary  income  (for  which a  dividend  received
deduction may be available to certain corporate holders), to the extent of Orion
Newco's earnings and profits (which, as noted above, likely will include Orion's
accumulated earnings and profits), over the period from the date the Orion Newco
preferred  stock is  issued  to the  date the  Orion  Newco  preferred  stock is
required  (or  deemed  required)  to be  redeemed.  This  could  result  in  the
recognition of ordinary income by Orion Newco preferred  stockholders in advance
of their receipt of cash dividends or redemption proceeds.

   Holders of Orion  preferred stock are urged to consult their own tax advisors
regarding  the  application  of the  foregoing  rules to their  shares  of Orion
preferred stock.

   Ernst & Young  LLP's Tax Opinion  that the Merger will  qualify as a tax-free
reorganization  under Section 368(a) of the Code is based on  representations of
Orion that certain  requirements are met,  including:  (i) following the Merger,
Orion will continue to own  substantially  all its assets and  substantially all
the  assets  of Orion  Merger  Subsidiary  (other  than the  Orion  Newco  Stock
distributed in the Merger);  (ii) historic  stockholders  of Orion (i.e.,  Orion
stockholders  who have not acquired  their Orion Stock in  contemplation  of the
Merger) will receive pursuant to the Merger and continue to own (not taking into
account any shares of Orion Newco Stock that are sold or  otherwise  disposed of
following the Merger pursuant to a plan or intention in existence at the time of
the Merger, such as shares sold in
                                       59
<PAGE>
market  transactions  and shares with respect to which holders have entered into
risk-limiting   transactions,   such  as  short  sales  and  hedges,  that  have
substantially   eliminated   their  potential  for   appreciation  and  risk  of
depreciation) shares of Orion Newco Stock having a fair market value on the date
of the Merger equal to at least 50% of the total  consideration  issued to Orion
stockholders in the Merger; and (iii) following the Merger, Orion Newco will own
stock of Orion  representing  80% of the  voting  power of all  classes of Orion
voting stock. If one or more of the foregoing requirements is not satisfied, the
Merger may  nonetheless  qualify for tax-free  treatment under Section 351(a) of
the Code,  provided shares of Orion Newco Stock issued to the Merger Transferors
and/or Exchanging Partners representing more than 20% of the voting power of all
classes of Orion Newco voting stock (or more than 20% of the total shares of any
class of Orion Newco nonvoting stock issued in the Merger Transactions) are not,
pursuant to a plan or commitment in existence at the time of the Merger, sold or
otherwise  disposed  of to a person who has not made a  significant  transfer of
property to Orion Newco pursuant to either the Merger or the Exchange.

   Even assuming the Merger qualifies as a tax-free  reorganization  or exchange
under Section 351(a) of the Code, holders of existing warrants to purchase Orion
Stock may recognize  gain or loss in connection  with the exchange or conversion
of those  warrants for, or into,  warrants to purchase  Orion Newco Stock.  Such
recognition  of gain or loss generally can be avoided by exercising the warrants
to purchase Orion Stock prior to the Merger.

   Whether or not the Merger qualifies for tax-free treatment, no income or loss
generally  will be  recognized  by holder of a  nonqualified  option to purchase
Orion Stock granted to the holder in connection with the performance of services
(an "Orion  NSO") as a  consequence  of the  conversion  of the Orion NSO into a
nonqualified  option to  purchase  Orion  Newco  Stock (an "Orion  Newco  NSO").
Rather, a holder of an Orion Newco NSO generally will recognize  ordinary income
only when the holder  exercises the Orion Newco NSO, which income generally will
equal the spread  between the fair market value of the Orion Newco Stock on date
of exercise  (determined without regard to any restrictions that will lapse over
time) and the exercise price.

   The  conversion of qualified  incentive  stock  options  ("ISOs") to purchase
Orion Stock into options to purchase  Orion Newco Stock will not  disqualify the
new options to purchase  Orion Newco Stock from ISO status,  provided the Merger
qualifies as a tax-free  reorganization under Section 368(a) of the Code and the
Orion ISO is not modified  other than to permit the holder to exercise the Orion
ISO for Orion Newco Stock. Similarly, shares of Orion stock acquired on exercise
of an Orion ISO will not be the subject of a "disqualifying  disposition" merely
because  the shares  are  exchanged  pursuant  to the Merger for shares of Orion
Newco Stock,  provided the Merger qualifies as a tax-free  reorganization  under
Section  368(a) of the Code.  If,  however,  the Merger  does not  constitute  a
reorganization  described in Section  368(a) of the Code,  then,  regardless  of
whether the Merger qualifies as a tax-free  exchange under Section 351(a) of the
Code,  (i) each  Orion ISO will  become  disqualified  and will be treated as an
Orion  Newco NSO,  and (ii) an  exchange  of shares of Orion  stock  acquired on
exercise of an Orion ISO within one year of the date of exercise,  or within two
years of the date on which the Orion ISO was granted to the  holder,  for shares
of Orion Newco Stock will constitute a "disqualifying  disposition" in which the
holder will recognize  ordinary  income equal to the excess fair market value on
the date of the Merger of the Orion Newco Stock  received over the price paid by
the holder for his or her Orion Stock on exercise of the Orion ISO.

   Pursuant to Section 1032 of the Code, Orion Newco will not recognize any gain
or loss as a result  of  issuing  shares  of  Orion  Newco  Stock to the  Merger
Transferors or to the Exchanging Partners.

   Finally,  it should be noted that Orion and its subsidiaries have substantial
net operating loss carryovers ("NOLs") that currently may be used against future
taxable income of the group.  Due to prior changes in the ownership of the stock
of Orion,  the use of those losses  against future taxable income may be subject
to limitations imposed under Section 382 of the Code.  Further,  the issuance of
the Orion Newco Series C Preferred Stock to Exchanging  Partners will contribute
towards (and may likely cause) an ownership  change under Section  382(g) of the
Code to occur  and  thus  impose  additional  limitations  on the use of  losses
incurred prior to the issuance to offset future taxable income. In general,
                                       60
<PAGE>
under  Section  382 of the Code,  the  annual  amount of taxable  income  earned
following  a change of more than 50 percent in the  ownership  of a  corporation
that can be offset by NOLs incurred  prior to such a change in ownership  equals
the  product of a rate  (published  monthly by the IRS) in effect on the date of
the change of ownership times the fair market value of the  corporation's  stock
outstanding immediately prior to such change in ownership. Depending on the fair
market value of Orion Common Stock, if such an ownership  change does occur as a
result of the issuance of the Series C Preferred  Stock, the change could extend
the period  over  which  Orion may  utilize  its NOLs to offset  future  taxable
income.  The future tax benefit of some portion of the NOLs would likely be lost
to the extent an ownership  change extends the period over which the NOLs can be
utilized beyond the applicable 15-year carryforward period.

   THE SUMMARY SET FORTH ABOVE IS FOR GENERAL  INFORMATION  PURPOSES  ONLY.  THE
SUMMARY IS BASED ON  CURRENTLY  EXISTING  PROVISIONS  OF THE CODE,  EXISTING AND
PROPOSED TREASURY REGULATIONS  THEREUNDER AND CURRENT ADMINISTRATIVE RULINGS AND
COURT DECISIONS AS OF THE DATE OF THIS PROXY STATEMENT/PROSPECTUS,  ALL OF WHICH
ARE SUBJECT TO CHANGE.  TRANSFERORS  ARE URGED TO CONSULT THEIR OWN TAX ADVISORS
AS TO  SPECIFIC  TAX  CONSEQUENCES  TO  THEM  OF  THE  EXCHANGE,  INCLUDING  THE
APPLICABILITY AND EFFECT OF FOREIGN, STATE, LOCAL, AND OTHER APPLICABLE TAX LAWS
AND THE POSSIBLE EFFECT OF ANY PROPOSED CHANGES IN THE TAX LAWS.

SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS PRIOR TO AND FOLLOWING THE
TRANSACTIONS

   The  following  table sets forth  certain  information  regarding  beneficial
ownership of the Orion Common Stock,  as of September 30, 1996,  and as adjusted
to reflect  the  beneficial  ownership  of Orion  Newco  Common  Stock after the
Merger,  the Exchange,  the Debenture  Investments  and the other  Transactions,
assuming for this purpose that the Transactions close as of January 30, 1997, by
(i) each stockholder known by Orion to be the beneficial owner of more than five
percent of the  outstanding  Orion Common  Stock,  (ii) each  director of Orion,
(iii) each current executive officer named in the Summary Compensation Table and
(iv) all directors and executive officers as a group

<TABLE>
<CAPTION>
                                                                                                          AFTER THE TRANSACTIONS
                                         BEFORE THE TRANSACTIONS          AFTER THE TRANSACTIONS       ON A FULLY DILUTED BASIS(23)
                                     ------------------------------- ------------------------------- ------------------------------
                                                       PERCENT OF                      PERCENT OF                      PERCENT OF
                                        AMOUNT OF    TOTAL SHARES OF    AMOUNT OF    TOTAL SHARES OF    AMOUNT OF    TOTAL SHARES OF
                                         SHARES       COMMON STOCK       SHARES       COMMON STOCK       SHARES       COMMON STOCK
                                      BENEFICIALLY     OUTSTANDING    BENEFICIALLY     OUTSTANDING    BENEFICIALLY     OUTSTANDING
                                         OWNED             (2)            OWNED            (2)            OWNED            (2)
                                     -------------- ---------------- -------------- ---------------- -------------- ----------------
<S>                                  <C>            <C>              <C>            <C>              <C>            <C>
   
Name and Address of
Beneficial Owner (1)

Exchanging Partners
   and Affiliates 

British Aerospace Space
   Systems, Inc. (3)
   British Aerospace
   Communications, Inc.
   British Aerospace
   Holdings, Inc.
   13873 Park Center Road
   Herndon, VA 22071                 598,183        5.4%             7,119,840      40.5%            7,119,840      27.5%
    
Lockheed Martin Commercial
  Launch Services, Inc.
  P.O. Box 179 
  MSM DC-1400
  Denver, CO 80201-0179              239,769        2.2              1,355,997      11.2             1,355,977       5.2
</TABLE>
                                       61
<PAGE>
<TABLE>
                                                                                                          AFTER THE TRANSACTIONS
                                         BEFORE THE TRANSACTIONS          AFTER THE TRANSACTIONS       ON A FULLY DILUTED BASIS(23)
                                     ------------------------------- ------------------------------- ------------------------------
                                                       PERCENT OF                      PERCENT OF                      PERCENT OF
                                        AMOUNT OF    TOTAL SHARES OF    AMOUNT OF    TOTAL SHARES OF    AMOUNT OF    TOTAL SHARES OF
                                         SHARES       COMMON STOCK       SHARES       COMMON STOCK       SHARES       COMMON STOCK
                                      BENEFICIALLY     OUTSTANDING    BENEFICIALLY     OUTSTANDING    BENEFICIALLY    OUTSTANDING
                                          OWNED            (2)            OWNED            (2)            OWNED            (2)
                                     -------------- ---------------- -------------- ---------------- -------------- ----------------
<S>                                  <C>            <C>               <C>                    <C>          <C>                <C>  
   
MCN Sat US, Inc
   Matra Marconi Space
   UK Limited
    
   37, Avenue Louis Breuget B.P.1.
   78146 Velizy Villacoublay Cedez
   France                                    *         *              1,727,257              13.6         1,727,257          6.7
                                                                                                                                
Trans-Atlantic Satellite, Inc.                                                                                                  
   1211 Avenue of the Americas                                                                                                  
   41st Floor                                                                                                                   
   New York, NY 10036                        *         *                796,457               6.8           796,457          3.1
                                                                                                                                
Kingston Communications                                                                                                         
   International Limited                                                                                                        
   Telephone House                                                                                                              
   Carr Lane                                                                                                                    
   Kingston-upon-Hull                                                                                                           
   HU1 3RE                                                                                                                      
   England                              43,252         *                683,137               5.9           683,137          2.6
                                                                                                                                
COM DEV Satellite                                                                                                               
   Communications Limited                                                                                                       
   150 Sheldon Drive                                                                                                            
   Cambridge, Ontario                                                                                                           
   Canada N1R 7H6                       18,382         *                559,067               4.9           559,067          2.2
   Exchanging Partners                                                                                                          
   and Affiliates as a group           899,586       8.1             12,241,755              54.5        12,241,755         47.3
                                                                                                                                
John V. Saeman                                                                                                                  
   J.V. Saeman & Co.(4)(5)                                                                                                      
   Medellion Enterprises, LLC                                                                                                   
   Suite 570                                                                                                                    
   3200 Cherry Creek South Drive                                                                                                
   Denver, CO 80209                  1,486,440      13.4              1,486,440              13.4         1,486,440          5.7
                                                                                                                                
CIBC Wood Gundy Ventures, Inc. (4)(6)                                                                                           
   425 Lexington Avenue                                                                                                         
   New York, NY 10017                  977,123       8.2                977,123               8.2           977,123          3.8
   Cumberland Associates                                                                                                        
   1114 Avenue of the Americas                                                                                                  
   New York, NY 10036                  815,000       7.4                815,000               7.4           815,000          3.2
                                                                                                                                
Fleet Venture Resources, Inc.(4)(7)                                                                                             
   Fleet Equity Partners VI, L.P.                                                                                               
   Chisholm Partners II, L.P.                                                                                                   
   50 Kennedy Plaza                                                                                                             
   Providence, RI 02903                743,428       6.3                743,428               6.3           743,428          2.9
                                                                                                                                
Dawson-Samberg Capital                                                                                                          
   Management, Inc.                                                                                                             
   Pequot General Partners                                                                                                      
   DS International Partners                                                                                                    
   Pequot Endowment Partners, L.P.                                                                                              
   Dawson-Samberg(8)                                                                                                            
   354 Pequot Ave.                                                                                                              
   Southport, CT 06490                 637,500       5.8                637,500               4.4           637,500          2.5
                                                                                                                                
Space Systems/Loral, Inc.                                                                                                       
   3925 Fabian Way                                                                                                              
   Palo Alto, CA 94303                 588,235       5.4                588,235               5.4           588,235          2.3
</TABLE>
                                       62
<PAGE>
<TABLE>
                                                                                                          AFTER THE TRANSACTIONS
                                         BEFORE THE TRANSACTIONS          AFTER THE TRANSACTIONS       ON A FULLY DILUTED BASIS(23)
                                     ------------------------------- ------------------------------- -------------------------------
                                                       PERCENT OF                      PERCENT OF                       PERCENT OF
                                        AMOUNT OF    TOTAL SHARES OF    AMOUNT OF    TOTAL SHARES OF    AMOUNT OF    TOTAL SHARES OF
                                         SHARES       COMMON STOCK       SHARES       COMMON STOCK       SHARES       COMMON STOCK
                                      BENEFICIALLY     OUTSTANDING    BENEFICIALLY     OUTSTANDING    BENEFICIALLY    OUTSTANDING
                                          OWNED            (2)            OWNED            (2)            OWNED            (2)
                                     -------------- ---------------- -------------- ---------------- -------------- ----------------
<S>                                     <C>            <C>              <C>            <C>              <C>            <C>   
Gustave M. Hauser(4)(9)
712 Fifth Avenue
New York, New York 01910                  437,517       4.0               437,517       4.0               437,517       1.7  
                                                                                                                             
John G. Puente (4)(10)                                                                                                       
2440 Research Blvd., Suite 400                                                                                               
Rockville, MD 20850                       432,181       3.9               432,181       3.9               432,181       1.7  
                                                                                                                             
Sidney S. Kahn(4)(11)                                                                                                        
14 East 60th Street, Suite 500                                                                                               
New York, New York 10022                  254,840       2.3               254,840       2.3               254,840       1.0  
                                                                                                                             
W. Neil Bauer (4)(12)                                                                                                        
2440 Research Blvd., Suite 400                                                                                               
Rockville, MD 20850                       133,821       1.2               133,821       1.2               133,821         *  
                                                                                                                             
David J. Frear (4)(13)                                                                                                       
2440 Research Blvd., Suite 400                                                                                               
Rockville, MD 20850                        60,181         *                60,181         *                60,181         *  
                                                                                                                             
Richard H. Shay (14)                                                                                                         
2440 Research Blvd., Suite 400                                                                                               
Rockville, MD 20850                        35,805         *                35,805         *                35,805         *  
                                                                                                                             
Warren B. French, Jr. (15)                                                                                                   
124 S. Main Street                                                                                                           
Edinburg, VA 22824                         15,623         *                15,623         *                15,623         *  
                                                                                                                             
Richard J. Brekka (16)                                                                                                       
CIBC Wood Gundy Ventures, Inc.                                                                                               
425 Lexington Avenue                                                                                                         
New York, NY 10017                         10,000         *                10,000         *                10,000         *  
                                                                                                                             
Barry Horowitz (17)                                                                                                          
Mitretek Systems, Inc.                                                                                                       
7525 Colshire Drive                                                                                                          
McLean, VA 22102                           10,000         *                10,000         *                10,000         *  
                                                                                                                             
Douglas H. Newman (18)                                                                                                       
2440 Research Blvd., Suite 400                                                                                               
Rockville, MD 20850                        20,000         *                20,000         *                20,000         *  
                                                                                                                             
W. Anthony Rice (19)                                                                                                         
British Aerospace                                                                                                            
13873 Park Center Road                                                                                                       
Herndon, VA 22071                          10,000         *                10,000         *                10,000         *  

Robert M. Van Degna (20)                                                                                                     
Fleet Equity Partners                                                                                                        
50 Kennedy Plaza                                                                                                             
Providence, RI 02903                       10,000         *                10,000         *                10,000         *  
                                                                                                                             
Hans Giner (21)                                                                                                              
2440 Research Blvd., Suite 400                                                                                               
Rockville, MD 20850                         5,000         *                 5,000         *                 5,000         *  
Dennis J. Curtin (22)                                                                                                        
2440 Research Blvd., Suite 400                                                                                               
Rockville, MD 20850                        26,039         *                26,039         *                26,039         *  
                                                                                                                             
All directors and executive officers                                                                                         
as a group (15 persons)                 2,947,447      25.6             2,947,447      25.6             2,947,447      11.4  
</TABLE>                                
- ----------
    *  Less than 1%.
                                       63
<PAGE>
   
(1)  In accordance with Rule 13d-3 under the Exchange Act, a person is deemed to
     be a "beneficial  owner" of a security if he or she has or shares the power
     to vote or direct  the voting of such  security  or the power to dispose or
     direct the  disposition of such  security.  A person is also deemed to be a
     beneficial  owner of any  securities  of which that person has the right to
     acquire  beneficial  ownership within 60 days from September 30, 1996. More
     than  one  person  may be  deemed  to be a  beneficial  owner  of the  same
     securities.  All  persons  shown in the table  above  have sole  voting and
     investment power, except as otherwise indicated. This table includes shares
     of Orion Common Stock subject to outstanding  options  granted  pursuant to
     Orion's Stock Option Plan and the Non-Employee  Director Stock Option Plan.
     The shares held by the Limited  Partners and their affiliates may be deemed
     to be  beneficially  owned by their  parent  companies,  including  British
     Aerospace Public Limited Company, COM DEV, Limited, Kingston Communications
     (Hull)  plc,  Martin  Marietta  Technologies,   Inc.  and  Lockheed  Martin
     Corporation, Matra Hachette and Nissho Iwai Corporation.

(2)  For the purpose of computing the  percentage  ownership of each  beneficial
     owner,  any securities which were not outstanding but which were subject to
     options,  warrants, rights or conversion privileges held by such beneficial
     owner  exercisable  within  60  days  were  deemed  to  be  outstanding  in
     determining  the  percentage  owned by such  person,  but  were not  deemed
     outstanding in determining the percentage owned by any other person.
    

(3)  Includes  511,678 shares held of record and 86,505 shares issuable upon the
     exercise of warrants held by British  Aerospace  Space  Systems,  Inc. Such
     warrants were exercised subsequent to September 30, 1996.

(4)  Does not include  shares  issuable  upon  exercise  of  warrants  which are
     exercisable  only in the event  that the Orion  Senior  Preferred  Stock is
     redeemed by Orion prior to its conversion into Orion Newco Common Stock.

(5)  The 1,486,440  shares of Orion Common Stock  beneficially  owned by John V.
     Saeman  include  58,823 shares  issuable  upon  conversion of 500 shares of
     Orion Series A Preferred  Stock, and 16,339 shares issuable upon conversion
     of 166.667  shares of Orion  Series B  Preferred  Stock.  Of the  remaining
     1,411,278 shares of stock beneficially owned by John V. Saeman, 814,005 are
     held by J. V. Saeman & Co., a general partnership,  of which Mr. Saeman and
     his wife are the sole  partners,  40,196 are held by JCC,  Ltd.,  a limited
     partnership,  of  which J. V.  Saeman & Co.  is the  general  partner,  and
     535,523  are  held by  Medallion  Enterprises,  LLC,  a  limited  liability
     company,  of which Mr. Saeman and his wife are the sole  members.  Includes
     10,000 shares issuable upon exercise of stock options exercisable within 60
     days.

   
(6)  Includes  764,705 shares  issuable upon conversion of 6,500 shares of Orion
     Series A Preferred  Stock and 212,418  shares  issuable upon  conversion of
     2,166.667  shares of Orion  Series B  Preferred  Stock held by CIBC,  which
     conversion would increase the number of outstanding  shares of Orion Common
     Stock by 977,123 (8.9%).
    
(7)  Includes  588,234 shares  issuable upon conversion of 4,000 shares of Orion
     Series A Preferred Stock held by the two Fleet entities (which include, for
     purposes of this footnote,  Fleet Venture Resources,  Inc. and Fleet Equity
     Partners, VI, L.P.) and 1,000 shares of Orion Series A Preferred Stock held
     by Chisholm, and 130,685 shares issuable upon conversion of 1,333 shares of
     Orion Series B Preferred Stock held by Fleet and preferred  options held by
     Chisholm  which are  convertible  into 24,509 shares of Orion Common Stock.
     Such  conversion  would increase the number of outstanding  shares of Orion
     Common Stock by 743,428 (6.8%).

(8)  Includes 54,100 shares held by  Dawson-Samberg  Capital  Management,  Inc.,
     235,400 shares held by Pequot General  Partners,  204,100 shares held by DS
     International   Partners  and  143,900  shares  held  by  Pequot  Endowment
     Partners, L.P.

(9)  Includes  58,823 shares issuable upon the conversion of 500 shares of Orion
     Series A Preferred  Stock and 16,339  shares  issuable  upon  conversion of
     166.667 shares of Orion Series B Preferred Stock held by Mr. Hauser and his
     wife.  Includes  10,000  shares  issuable  upon  exercise of stock  options
     exercisable within 60 days.

(10) Includes  58,439  shares held of record and 7,351 shares  issuable upon the
     exercise of options by Mr. Puente's wife.  Includes  321,501 shares held of
     record,  43,087 shares  issuable upon the exercise of stock options,  1,411
     shares  issuable  upon  the  conversion  of 12  shares  of  Orion  Series A
     Preferred  Stock and 392 shares  issuable  upon  conversion  of 4 shares of
     Orion Series B Preferred  Stock held by Mr. Puente.  Includes 10,000 shares
     issuable upon exercise of stock options exercisable within 60 days.

(11) Includes  29,411  shares  issuable upon the exercise of 250 shares of Orion
     Series A Preferred  Stock and 8,169  shares  issuable  upon  conversion  of
     83.333  shares of Orion Series B Preferred  Stock.  Includes  10,000 shares
     issuable upon exercise of stock options exercisable within 60 days.

(12) Includes 133,821 shares issuable upon the exercise of stock options held by
     Mr. Bauer  exercisable  within 60 days. Does not include 10,220 shares held
     of record,  1,882 shares issuable upon the conversion of 16 shares of Orion
     Series A Preferred  Stock and 522 shares  issuable upon conversion of 5.333
     shares of Orion Series B Preferred Stock purchased in June 1995 held by Mr.
     Bauer's wife. Mr. Bauer disclaims beneficial ownership of these shares.

(13) Includes  46,321  shares  issuable  upon  the  exercise  of  stock  options
     exercisable  within 60 days and 1,176 shares issuable upon conversion of 10
     shares of Orion  Series A  Preferred  Stock and 326  shares  issuable  upon
     conversion of 3.333 shares of Orion Series B Preferred Stock.

(14) Includes 18,895 shares issuable upon exercise of stock options  exercisable
     within 60 days.
                                       64
<PAGE>
(15) Does not include 172,520 shares held of record, 29,412 shares issuable upon
     the  conversion  of 250 shares of Orion  Series A Preferred  Stock or 8,170
     shares  issuable  upon  conversion  of  83.334  shares  of  Orion  Series B
     Preferred Stock held by Shenandoah Telecommunications Company, of which Mr.
     French is the former  Chairman  and  presently  a  consultant.  Mr.  French
     disclaims  beneficial  ownership of these  shares.  Includes  10,000 shares
     issuable upon exercise of stock options exercisable within 60 days.

(16) Mr. Brekka disclaims  beneficial ownership of all shares of Orion's capital
     stock which are owned by CIBC Wood Gundy.  Includes  10,000 shares issuable
     upon exercise of stock options exercisable within 60 days.

(17) Includes  10,000  shares  issuable  upon  the  exercise  of  stock  options
     exercisable within 60 days.

(18) Includes  10,000  shares  issuable  upon  the  exercise  of  stock  options
     exercisable within 60 days.

   
(19) Does not include  598,183 shares  beneficially  owned by British  Aerospace
     Space Systems, Inc. Mr. Rice, a director of Orion and a director of British
     Aerospace  Space Systems,  Inc.,  disclaims  beneficial  ownership of these
     shares.  Includes  10,000  shares  issuable  upon exercise of stock options
     exercisable within 60 days.

(20) Excludes  588,234 shares  issuable upon conversion of 4,000 shares of Orion
     Series A Preferred  Stock held by Fleet and 1,000  shares of Orion Series A
     Preferred  Stock  held  by  Chisholm,  and  130,685  shares  issuable  upon
     conversion of 1,333 shares of Orion Series B Preferred  Stock held by Fleet
     and preferred  options held by Chisholm which are  convertible  into 24,509
     shares of Orion Common Stock.  Such conversion would increase the number of
     outstanding  shares of Orion Common Stock by 743,428 (6.8%). Mr. Van Degna,
     a director of Orion, is the chairman and chief executive officer of each of
     the  managing  general  partners of Fleet Equity  Partners  VI,  L.P.,  the
     chairman and chief executive officer of Fleet Venture  Resources,  Inc. and
     the chairman and chief  executive  officer of the  corporation  that is the
     general partner of the partnership  that is the general partner of Chisholm
     Partners II, L.P.  Mr. Van Degna  disclaims  beneficial  ownership of these
     shares.  Includes  10,000  shares  issuable  upon exercise of stock options
     exercisable within 60 days.
    

(21) Includes  5,000  shares   issuable  upon  the  exercise  of  stock  options
     exercisable within 60 days.

(22) Includes  14,446  shares  issuable  upon  the  exercise  of  stock  options
     exercisable  within 60 days, and 705 shares issuable upon the conversion of
     6 shares of Orion  Series A Preferred  Stock and 196 shares  issuable  upon
     conversion of 2 shares of Orion Series B Preferred Stock.

   
(23) The percentage  ownership of each  beneficial  owner  calculated on a fully
     diluted basis assumes conversion or exercise of all derivative  securities,
     including options, warrants, rights or conversion privileges.
    
                                       65
<PAGE>
                            THE RELATED TRANSACTIONS

   The following describes certain  Transactions whose completion is a condition
to the Merger, the Exchange or the Debenture Investments.

THE NOTES OFFERING/ORION 1 CREDIT FACILITY REFINANCING

   Orion 1 Credit Facility Refinancing.  The Orion 1 Credit Facility Refinancing
and the release of the Limited Partners' (and their  affiliates') Orion 1 Credit
Facility  Support  Agreements (as defined below) is a condition to the Exchange,
and such release and the Exchange are conditions to the Debenture Investments. A
substantial portion of the funding for the Orion 1 satellite,  which constitutes
the principal asset of Orion Atlantic (and, indirectly,  of Orion), was provided
under the Orion 1 Credit  Facility.  Principal and interest  payments  under the
Orion 1 Credit Facility commenced in July 1995, six months after commencement of
commercial operations of Orion 1. As of September 30, 1996, approximately $210.4
million remained outstanding under the Orion 1 Credit Facility. That facility is
secured by substantially all of the assets of Orion Atlantic. The Orion 1 Credit
Facility also is supported by certain  guarantees  and other  commitments by the
Exchanging   Partners   and  Orion  (the  "Orion  1  Credit   Facility   Support
Agreements"),  under  which the  Exchanging  Partners  and Orion  agreed to make
payments to Orion Atlantic, either on a monthly basis or to the extent needed to
meet  obligations  under the Orion 1 Credit Facility or otherwise,  of over $420
million over the seven-year period commencing with commercial operation of Orion
1. Through  September  30,  1996,  the  Exchanging  Partners and Orion have paid
approximately  $26.7 million to Orion Atlantic under the Orion 1 Credit Facility
Support Agreements.

   In  connection  with the Orion 1 Credit  Facility  Refinancing,  Orion Newco,
Orion  Atlantic,  Orion,  OrionSat and the Exchanging  Partners are obligated to
take all measures reasonable  necessary or advisable to cause the Bank Agreement
Termination  and the  Capacity  Agreement  Termination.  However,  the  Capacity
Agreements of Kingston and Matra (but not the  associated  Capacity  Guarantees)
will remain in full force and effect and the Kingston Capacity Agreement and the
Matra Capacity Agreement will be deemed amended, effective as of the date of the
Exchange, to reduce the amount of capacity subject to such Capacity Agreements.

   Notes Offering. The Orion 1 Credit Facility Refinancing will be effected with
the  proceeds of the Notes  Offering.  It is presently  expected  that the Notes
Offering will be in the amount of approximately $347 million with expected gross
proceeds of approximately $275 million  (excluding  approximately $72 million of
overfunding  of interest due on such notes).  The possible  effects of incurring
substantial  additional  indebtedness  are  discussed  elsewhere  in this  Proxy
Statement/Prospectus  under the  captions  "Risk  Factors -- Risks  Relating  to
Orion's   Business  --   Substantial   Leverage;   Secured   Indebtedness"   and
"Management's  Discussion  and  Analysis of Financial  Condition  and Results of
Operations  of Orion --  Liquidity  and  Capital  Resources  -- Current  Funding
Requirements."  Orion Newco is expected to incur substantial  additional amounts
of  indebtedness  over the next few years,  as described above under the caption
"Risk  Factors -- Risks  Relating  to Orion's  Business  -- Need for  Additional
Capital."

   The Notes  Offering is expected to include (i) Senior Notes due 2007 of Orion
Newco  ("Senior  Notes") sold as a unit with Warrants  ("Warrants")  to purchase
shares of Orion Newco  Common Stock and (ii) Senior  Discount  Notes due 2007 of
Orion Newco  ("Senior  Discount  Notes" and together with the Senior Notes,  the
"Notes") sold as a unit with  Warrants to purchase  shares of Orion Newco Common
Stock.  It is  expected  that the Notes will be  guaranteed  by each  Restricted
Subsidiary (as defined in the Notes Indentures) of the Company. The Senior Notes
are presently expected to be issued at their principal amount with cash interest
payable on a semi-annual  basis. The first six semi-annual  interest payments on
the  Senior  Notes  are to be paid  from an  escrow  account  funded  out of the
proceeds of the Notes Offering. The Senior Discount Notes are presently expected
to be issued at a discount from their principal amount,  and no cash interest is
expected  to be payable on the Senior  Discount  Notes for the first five years.
The Notes are  presently  expected  to rank  senior in right of  payment  to all
subordinated indebtedness of the Company and pari passu in right of payment with
all  unsecured  senior  indebtedness  of the  Company.  The Notes are  presently
expected  to be  unsecured  (except to the extent of the  proceeds in the escrow
account for  application to the first six semi-annual  interest  payments on the
Senior
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<PAGE>
Notes).  The Notes are presently expected to mature ten years after issuance and
to provide for optional and mandatory redemption.

   The Notes are to be issued  under Notes  Indentures  among Orion  Newco,  its
Restricted Subsidiaries and a trustee which are expected to contain, among other
limitations,  covenants  which will  restrict the ability of the Company and its
subsidiaries  to:  incur  additional  indebtedness;   create  liens;  engage  in
sale-leaseback  transactions;  pay dividends or make distributions in respect of
their capital stock; make investments or make certain other restricted payments;
sell assets;  create  restrictions on the ability of restricted  subsidiaries to
make certain  payments;  issue or sell stock of restricted  subsidiaries;  enter
into  transactions with  stockholders or affiliates;  and consolidate,  merge or
sell all or substantially all of their assets.  However,  these limitations will
be subject to a number of important qualifications and exceptions.

   Each Warrant will entitle the holder thereof to purchase the number of shares
of Orion Newco Common Stock at the exercise  prices that will be  established at
the time the Warrants are issued.  The Warrants are presently expected not to be
exercisable  for at least six months,  and  possibly  longer,  after the date of
issuance. The Warrants are presently expected to expire on the tenth anniversary
of the date of issuance.

    The terms of the Notes and the  Warrants  as issued  may  differ in  certain
respects from the terms described  above. See "Risk Factors -- Risks Relating to
Merger,  Exchange and Debenture  Investments  -- Certain Terms of Notes Offering
Not Yet Determined."

   Each of the  Exchanging  Partners  has agreed that Orion Newco may pursue the
Notes  Offering  to effect the Orion 1 Credit  Facility  Refinancing.  Under the
Exchange Agreement,  however,  Orion Newco and Orion have reserved the right not
to proceed with the Notes Offering if they determine that it would not be in the
best  interests  of the  stockholders  of Orion  Newco or Orion  (including  the
entities who would become stockholders of Orion Newco after the Merger).

OAP ACQUISITION

   Orion has  acquired or is in the process of  acquiring  the only  outstanding
minority  interest in Orion Asia Pacific from an affiliate of British  Aerospace
for approximately  86,000 shares of Orion Newco Common Stock. Orion acquired the
remainder  of Orion Asia  Pacific in December  1992.  Orion Asia  Pacific  holds
rights under an agreement with the Republic of the Marshall  Islands pursuant to
which Orion is pursuing an orbital slot for the Orion 3 satellite.  Consummation
of the OAP Acquisition is a condition to the British Aerospace Investment.
                                       67
<PAGE>
                        INFORMATION ABOUT ORION NEWCO

   Orion  Newco is a newly  formed  Delaware  corporation.  Orion is the initial
stockholder of Orion Newco and owns one share of Orion Newco Common Stock. Orion
Newco  is  substantially  identical  in  all  material  respects  to  Orion.  In
particular,   Orion  Newco  has  a  certificate  of  incorporation   and  bylaws
substantially identical in all material respects to those of Orion and a capital
structure  substantially  identical  to that of  Orion.  For  more  information,
stockholders  are referred to Orion Newco's  certificate  of  incorporation  and
bylaws  filed as  exhibits  to the  Registration  Statement  of which this Proxy
Statement/Prospectus is a part.

                   DESCRIPTION OF ORION NEWCO CAPITAL STOCK

   The authorized  capital stock of Orion Newco consists of 40,000,000 shares of
Orion Newco Common  Stock,  par value $.01 per share,  and  1,000,000  shares of
preferred stock, par value $.01 per share.

   The following  summary  description  of the capital stock of Orion Newco upon
consummation  of the  Merger  Transactions  and  the  Debenture  Investments  is
qualified in its entirety by reference to the Certificate of  Incorporation  and
Bylaws of Orion Newco, copies of which are filed as exhibits to the Registration
Statement of which this Proxy Statement/Prospectus is a part.

ORION NEWCO COMMON STOCK

   As of December 15, 1996,  there were 10,974,121  shares of Orion Common Stock
outstanding, held by approximately 350 stockholders of record.

   As described  below,  the rights and  preferences of Orion Newco Common Stock
are  substantially  identical in all material  respects to those of Orion Common
Stock.

   Dividends.  Subject to  preferences  that may then be  applicable to any then
outstanding preferred stock, holders of Orion Newco Common Stock are entitled to
receive  dividends  out of funds  legally  available  therefor  when,  as and if
declared by the Board of Directors.  Orion has not paid any cash  dividends upon
its Orion Common Stock and does not plan to pay any  dividends on such stock for
the  foreseeable  future.  The Notes  Indentures  will  contain  covenants  that
restrict Orion Newco's ability to pay cash dividends.

   Voting  Rights.  Each holder of Orion Newco  Common  Stock is entitled to one
vote per share of Orion Newco Common Stock held by such holder on all matters to
be voted upon by the  stockholders  of Orion  Newco.  Holders of shares of Orion
Newco Common Stock are not entitled to cumulative voting rights.

   Staggered  Terms  of  Directors.   Under  the  provisions  of  Orion  Newco's
Certificate of Incorporation,  the members of the Board of Directors are divided
into three classes with the term of one class  expiring each year.  Accordingly,
only  those  Directors  of a single  class can be changed in any one year and it
could take three years to change the entire  Board.  While Orion Newco  believes
that a staggered  Board of Directors is in the best interests of Orion Newco and
its stockholders,  such requirement may have the effect of protecting management
in retaining its position and discouraging potential acquirors.

   Liquidation Rights. All shares of Orion Newco Common Stock have equal rights,
on a share for share  basis,  to receive  pro rata the net assets of Orion Newco
upon  liquidation  or  dissolution  after  payments to creditors  and holders of
preferred stock, if any, then issued and outstanding. There are no redemption or
sinking  fund  provisions  applicable  to the  Orion  Newco  Common  Stock.  All
outstanding  shares of Orion  Newco  Common  Stock are,  and the shares of Orion
Newco Common Stock offered  hereby will be when issued in  accordance  herewith,
fully paid and non-assessable.

ORION NEWCO PREFERRED STOCK

   Orion Newco's Certificate of Incorporation  authorizes the Board of Directors
to issue, from time to time and without further  stockholder action, one or more
series of preferred stock, and to fix the relative rights and preferences of the
shares, including voting powers, dividend rights, liquidation preferences,
                                       68
<PAGE>
redemption  rights and conversion  privileges.  Because of its broad  discretion
with respect to the creation and issuance of preferred stock without stockholder
approval,  the Board of Directors could adversely affect the voting power of the
holders of Orion Newco  Common Stock and, by issuing  shares of preferred  stock
with certain voting,  conversion and/or redemption rights,  could discourage any
attempt to obtain control of Orion Newco.

ORION NEWCO SENIOR PREFERRED STOCK

   As  described  above under the caption  "The  Merger,  the  Exchange  and the
Debenture Investments -- The Merger Agreement -- Terms of the Merger Agreement,"
pursuant to the Merger Orion Newco will issue the Orion Newco Series A Preferred
Stock and the Orion Newco Series B Preferred  Stock in exchange for an identical
number of shares of Orion Series A Preferred Stock
and Orion Series B Preferred Stock.

   Preemptive  Rights.  The holders of Orion Newco Senior Preferred Stock have a
contractual  "preemptive"  right to  purchase  a pro rata  portion of any equity
securities sold by Orion Newco in the future on the same terms and conditions as
sold to others,  subject to certain exceptions for securities sold or granted to
employees, certain small offerings, existing rights to acquire equity securities
and public offerings of securities under the Securities Act.

   Dividends and Conversion. Dividends on the Orion Newco Senior Preferred Stock
accrue at 8% per annum,  and are payable as and when declared by the Board.  The
Orion Newco Senior  Preferred Stock is convertible into Orion Newco Common Stock
at  initial  prices of $8.50 and $10.20  per  share,  subject  to  anti-dilution
adjustments in the case of  recapitalizations or issuances of Orion Newco Common
Stock below the conversion  price (other than pursuant to Warrants issued in the
Notes  Offering).  Future  issuances  of Orion  Newco  Common  Stock  below  the
conversion  price could  significantly  increase the percentage of Orion Newco's
equity  owned by the holders of the Orion Newco  Senior  Preferred  Stock.  Upon
conversion  of the Orion Newco Senior  Preferred  Stock,  any accrued and unpaid
dividends on the Orion Newco Senior Preferred Stock will be waived.

   Liquidation  Rights. The Orion Newco Senior Preferred Stock has a liquidation
preference  equal to the amount  invested,  which  preference  increases  to the
extent of any accrued and unpaid dividends.

   Voting Rights. Holders of the Orion Newco Senior Preferred Stock are entitled
to vote with holders of the Orion Newco  Series C Preferred  Stock and the Orion
Newco Common Stock, together as a single class on an as-if-converted basis.

   Put Rights.  The holders of Orion Newco Senior Preferred Stock have the right
to sell the Orion Newco Common Stock  received  upon the  conversion  thereof to
Orion Newco upon,  among other things,  certain  mergers,  changes of control or
sales of substantially all the assets of Orion Newco at the pro rata interest of
such holders in the consideration  received,  in the case of certain fundamental
changes, or fair market value. In the case of mergers in which the consideration
to be received by holders of Orion  Newco  Common  Stock is in a form other than
cash, Orion Newco shall pay the purchase price with a combination of a specified
amount  of freely  tradable  securities,  a  specified  amount of cash,  and the
balance with a note  payable  over two years.  The holders of Orion Newco Senior
Preferred  Stock (and any Orion Newco Common Stock  received upon the conversion
thereof)  also have the right to sell such stock (or the common  stock  issuable
upon  conversion  thereof)  to Orion Newco  commencing  in June 1999 at the fair
market value of their  shares (in the case of Orion Newco  Common  Stock) or the
liquidation value,  including accrued and unpaid dividends (in the case of Orion
Newco Senior Preferred Stock), in accordance with the following schedule:

                         ON OR AFTER MAY 31,    PORTION
                         -------------------    -------
                         1999................   33 1/3%
                         2000................   66 2/3%
                         2001................      100%

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<PAGE>
   
   The Company  expects the holders of Orion  Newco  Senior  Preferred  Stock to
agree to waive  exercise of these rights for so long as any Notes or  Debentures
remain  outstanding.  These  rights  terminate  upon the closing of a "Qualified
Public Offering," as discussed below. 
    

   Tag Along Rights.  Certain  principal  stockholders  of Orion have granted to
CIBC,  Fleet and  Chisholm  the right to have a pro rata  portion  (based on the
percentage  of Orion Newco Common Stock  outstanding)  of the Orion Newco Common
Stock  issuable  upon  conversion  of the Orion  Newco  Senior  Preferred  Stock
included in any sales by those principal stockholders which involve more than 5%
of the Orion Newco Common Stock then outstanding.

   Termination of Certain Rights Upon Qualified Public  Offering.  The rights of
the holders of the Orion Newco Senior Preferred Stock relating to sale following
certain  mergers,  changes of control or sale of substantially  all assets,  the
rights  to sell  such  stock  to  Orion  Newco  commencing  in  June  1999 or in
connection  with  certain  business  combinations  at  fair  market  value,  the
preemptive rights and certain of the additional investment rights terminate upon
the  closing  of a  "Qualified  Public  Offering"  which is  defined as a public
offering of the Orion Newco Common  Stock with gross  proceeds to Orion Newco of
not less than $30 million and a public offering price per share of not less than
$25.50.

   Restrictive Covenants;  Representations.  The documents relating to the Orion
Newco Senior  Preferred  Stock  impose  certain  covenants  on Orion Newco.  The
covenants  include  limitations  on payment of  dividends,  redemption of junior
securities  such as Orion  Newco  Common  Stock,  certain  issuances  of  senior
securities  (except  when the  Orion  Newco  Senior  Preferred  Stock is able to
acquire an  equivalent  seniority),  expansion  into other  lines of business or
engaging  in  certain  affiliated  transactions.  Failure  to comply  with those
covenants  (or failure of  representations  to be true and  complete  when made)
could result in an increase in the dividend on the Orion Newco Senior  Preferred
Stock not to exceed an annual  dividend of 14% and could give the holders of the
Orion Newco Senior  Preferred  Stock certain  rights to sell such stock to Orion
Newco if the  non-compliance  is material or (in certain cases)  continues after
certain cure periods.  The Notes  Indentures  are expected to contain a covenant
which  will  effectively  prohibit  such  sale to  Orion  while  any  Notes  are
outstanding.  Orion  Newco  has the  right to  redeem  the  Orion  Newco  Senior
Preferred  Stock (subject to limitations  contained in the Notes  Indentures) at
its liquidation  value (plus accrued and unpaid  dividends) by paying holders of
Orion Newco Senior  Preferred Stock that amount and activating  certain warrants
(issued  concurrently  with the Orion Newco Senior  Preferred Stock) to purchase
Orion Newco  Common  Stock at the  conversion  price of such Orion Newco  Senior
Preferred  Stock.  These warrants do not become  exercisable  unless Orion Newco
exercises its right to repurchase the Orion Newco Senior Preferred Stock.

   Orion  Newco's  Right to Force  Conversion  of Orion Newco  Senior  Preferred
Stock.  Orion Newco may require  conversion of the Orion Newco Senior  Preferred
Stock  (resulting  in the  cancellation  of accrued but unpaid  dividends) if it
meets  certain  public  float  requirements,  the holders of Orion Newco  Senior
Preferred Stock are not subject to any agreements  restricting the sale of Orion
Newco Common Stock received on conversion  and the closing  trading price of the
Orion Newco Common Stock for 30 of the 45 trading days  preceding  notice of the
required  conversion  has been  above  (i)  $21.24  (if  Orion  Newco  makes the
conversion  election  prior to June 17,  1997) and (ii)  $25.50 (if Orion  Newco
makes the conversion election on or after June 17, 1997).

ORION NEWCO SERIES C PREFERRED STOCK

   
   The  relative  rights and  preferences  of the Orion Newco Series C Preferred
Stock will be as set forth in the Certificate of Designations, the form of which
is  attached  to  this  Proxy  Statement/Prospectus  as  Attachment  C,  and are
described above under "The Merger, the Exchange and the Debenture Investments --
Description of the Orion Newco Series C Preferred Stock." 
    

WARRANTS AND OPTIONS

   As of December  15, 1996,  there were  warrants  and options  outstanding  to
purchase an  aggregate  of  1,193,721  shares of Orion  Common Stock at exercise
prices ranging from $8.16 to $14.00 per share,  with a weighted average exercise
price of $10.31 per share. Holders of Orion Series A Preferred Stock have
                                       70
<PAGE>
(and  holders of Orion  Newco  Series A  Preferred  Stock will have)  options to
invest an additional  approximately  $350,000 in similar preferred stock (except
that such similar  preferred  stock would be  convertible at any time into Orion
Newco  Common  Stock at a price based upon the date when the option is exercised
within a range from $10.20 to $17.00 per share of Orion Newco Common Stock). The
holders of Orion Newco  Senior  Preferred  Stock also hold  certain  warrants to
purchase  Orion Newco Common Stock at the  conversion  price of such Orion Newco
Senior Preferred Stock.  These warrants do not become  exercisable  unless Orion
Newco exercises its right to repurchase the Orion Newco Senior  Preferred Stock.
The warrants  and options  contain  provisions  for the  adjustment  of exercise
prices  in  certain   events,   including   stock   dividends,   stock   splits,
reorganizations, reclassifications or mergers.

REGISTRATION RIGHTS

   Orion Newco Senior Preferred  Stock;  SS/L. The holders of Orion Newco Senior
Preferred Stock and SS/L (an existing stockholder) are entitled to include their
shares of Orion Newco  Common Stock in a registered  offering of  securities  by
Orion Newco (a "piggyback"  registration) for its own account or for the account
of its  stockholders.  If Orion Newco  proposes to register  any shares of Orion
Newco  Common  Stock  under  the  Securities  Act  (other  than for an  offering
primarily to  employees  or in  connection  with a merger or  acquisition),  the
holder of  registration  rights may request that Orion include in the registered
offering  shares  held by such  holder or which the holder  would  receive  upon
conversion or exercise.  If so requested,  Orion Newco must use its best efforts
to include in the  registered  offering all shares  requested,  provided,  among
other conditions,  that the managing  underwriter of such offering has the right
to limit or exclude  entirely  such shares of Orion Newco Common Stock from such
offering. Orion Newco is required to bear all registration and selling expenses,
other  than  underwriting  discounts,  selling  commissions,   applicable  stock
transfer taxes, and certain  registration fees and expenses,  in connection with
such piggyback registrations.

   The  holders  of Orion  Newco  Senior  Preferred  Stock  have  demand  rights
(including   two  "long  form"  and  an   unlimited   number  of  "short   form"
registrations)  to require Orion Newco to register the securities  held by them,
subject to certain conditions.  Orion Newco is required to bear all registration
and selling expenses,  other than underwriting  discounts,  selling commissions,
applicable stock transfer taxes, and certain registration fees and expenses,  in
connection with such demand registrations.

   
   Orion Newco Series C Preferred  Stock.  The  registration  rights held by the
holders of the Orion Newco Series C Preferred  Stock are  described  above under
"The Merger, the Exchange and the Debenture Investments-- Registration
Rights."
    

    Any exercise of such  registration  rights may hinder efforts by Orion Newco
to arrange  future  financings of Orion Newco and may have an adverse  effect on
the market  price of the Orion  Newco  Common  Stock.  See "Orion  Newco  Shares
Eligible for Future Sale."

CERTAIN ANTI-TAKEOVER EFFECTS

   Orion  Newco's  Certificate  of  Incorporation  and  Bylaws  contain  certain
provisions  that are  intended  to enhance  the  likelihood  of  continuity  and
stability in the  composition  of Orion  Newco's  Board of Directors  and in the
policies formulated by the Board of Directors,  and to discourage an unsolicited
takeover  of  Orion  Newco if the  Board of  Directors  determines  that  such a
takeover  is not in the best  interest  of  Orion  Newco  and its  stockholders.
However, these provisions could have the effect of discouraging certain attempts
to acquire Orion Newco or remove incumbent management even if some or a majority
of Orion Newco's  stockholders  were to deem such an attempt to be in their best
interest,  including  those  attempts  that might  result in a premium  over the
market price for the shares of Orion Newco Common Stock held by stockholders.

   Orion Newco is subject to Section 203 of the Delaware General Corporation Law
("Section  203")  which,  subject to certain  exceptions,  prohibits  a Delaware
corporation from engaging in certain business  combinations  with any interested
stockholder for a period of three years following the date that such stockholder
became an interested stockholder. In general, Section 203 defines an "interested
stockholder"  as any  entity or person  beneficially  owning  15% or more of the
outstanding voting stock of
                                       71
<PAGE>
the  corporation  and any entity or person  affiliated  with or  controlling  or
controlled by such entity or person. A Delaware  corporation may elect not to be
subject to Section 203 by having its  stockholders  approve an  amendment to its
certificate of incorporation or bylaws to such effect.  Orion Newco has not made
such an election and,  therefore,  Section 203 may have an anti-takeover  effect
with respect to Orion Newco.

   
   Under the  Communications  Act, if Orion Newco controlled an FCC radio common
carrier  licensee  (which it presently does not), the FCC could refuse or revoke
such licensee's license if (i) over 25% of Orion Newco was controlled by foreign
persons or  entities  and (ii) the FCC found that the public  interest  would be
served  thereby.  Because of these  provisions,  Orion  Newco's  Certificate  of
Incorporation  empowers  the Board of  Directors of Orion Newco to redeem any of
Orion Newco's  outstanding  capital stock to the extent necessary to prevent the
loss  or  secure  the  reinstatement  of  any  license  or  franchise  from  any
governmental agency. Such stock may be redeemed at the lesser of (i) fair market
value or (ii) such holder's  purchase price (if the stock was purchased within a
year of such redemption). See "Information About Orion's Business -- Regulation"
and "Risk  Factors -- Risks  Relating to Orion's  Business -- Approvals  Needed;
Regulation of Industry." In  connection  with the Debenture  Investments,  Orion
Newco has agreed to certain additional requirements with respect to the exercise
of this right.  See "The Merger,  the Exchange and the Debenture  Investments --
The Debenture Investments." 
    

   Orion Newco's  Certificate of  Incorporation  contains a provision (the "Fair
Price  Provision")  that  requires  the approval of the holders of a majority of
Orion  Newco's  voting  stock  (other  than voting  stock held by an  Interested
Stockholder  (as defined  below)) as a condition to a merger or to certain other
business  transactions  with,  or proposed  by, a holder of 20% or more of Orion
Newco's voting stock (an "Interested Stockholder"), except in cases (such as the
Debenture Investments) where the Continuing Directors approve the transaction or
certain  minimum price  criteria and other  procedural  requirements  are met. A
"Continuing  Director" is a director  who is not an  Interested  Stockholder  or
affiliated with an Interested Stockholder or who was a member of the Board prior
to the time the Interested Stockholder became an Interested Stockholder or whose
nomination or election to the Board of Directors is recommended or approved by a
majority of the  Continuing  Directors.  The minimum  price  criteria  generally
require that, in a transaction in which  stockholders  are to receive  payments,
holders of Orion Newco  Common  Stock must  receive a value equal to the highest
price paid by the Interested Stockholder for Orion Newco Common Stock during the
prior  two  years,  and  that  such  payment  be made in cash or in the  type of
consideration paid by the Interested Stockholder for the greatest portion of its
shares.  Orion Newco's Board of Directors believes that the Fair Price Provision
will help assure that all of Orion Newco's stockholders are treated similarly if
certain kinds of business  combinations  are effected.  However,  the Fair Price
Provision may make it more difficult to accomplish certain transactions that are
opposed by the  incumbent  Board of Directors  and that could be  beneficial  to
stockholders.

   Orion  Newco's  Certificate  of  Incorporation  also  requires any person (or
entity) (the "Acquiring Stockholder") who acquires or seeks to acquire shares of
capital stock of the Company that would  increase such person's  voting power in
Orion Newco above any of three thresholds (20%, 33% or 50%) to send a disclosure
statement to Orion Newco and the other stockholders.  The Acquiring  Stockholder
must  receive the  approval of the holders of a majority of the other  shares of
Orion Newco before the Acquiring  Stockholder  can vote the acquired  stock.  In
addition,  if the Acquiring  Stockholder  has acquired or is acquiring more than
50% of the outstanding  capital stock,  the other  stockholders who vote against
such acquisition are entitled to dissent and obtain for their shares, from Orion
Newco,  payment  equivalent  to the estimated  fair value of their  shares.  The
practical  effect of this requirement is to condition the acquisition of control
of Orion Newco on the approval of a majority of the  pre-existing  disinterested
stockholders.

    Orion Newco's  Certificate of Incorporation  provides that all actions taken
by  the  stockholders  must  be  taken  at  an  annual  or  special  meeting  of
stockholders.  Under the Bylaws,  special  meetings of the stockholders of Orion
Newco may be called only by a majority of the members of the Board of Directors,
the  Chairman  or  stockholders  owning  in the  aggregate  at least  35% of the
outstanding shares of capital stock of Orion Newco entitled to vote. Orion Newco
is not obligated to hold more than one
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special meeting called by stockholders during any six-month period. Stockholders
are required to comply with certain  advance notice  provisions  with respect to
any  nominations  of candidates for election to Orion Newco's Board of Directors
or other proposals submitted for stockholder vote. These provisions may have the
effect of  deterring  hostile  takeovers  or  delaying  changes  in  control  or
management of Orion Newco.

   Orion Newco's  Certificate of Incorporation and Bylaws provide that the Board
of Directors of Orion Newco is divided into three  classes of directors  serving
staggered  three-year  terms. The  classification of directors has the effect of
making it more difficult for stockholders to change the composition of the Board
of Directors in a relatively  short  period of time.  The  authorized  number of
directors  may be  changed by  resolution  of the Board of  Directors  or by the
holders of at least  two-thirds of the voting power of all  outstanding  shares,
and directors may not be removed without cause.

   The foregoing  provisions of Orion Newco's  Certificate of Incorporation  and
Bylaws,  except for those dealing with the  liability of  directors,  may not be
altered,  amended or repealed  without  the  approval of the holders of at least
two-thirds  of the  voting  power of all  outstanding  shares  entitled  to vote
thereon and the affirmative vote of the Board of Directors.

LISTING

   The Orion Common Stock is, and after the Merger  Transactions the Orion Newco
Common  Stock will be,  quoted on the Nasdaq  National  Market under the trading
symbol "ONSI."

TRANSFER AGENT

   The transfer agent and registrar for the Orion Common Stock is, and after the
Merger  Transactions the transfer agent and registrar for the Orion Newco Common
Stock will be, Fleet National Bank.

                   ORION NEWCO SHARES ELIGIBLE FOR FUTURE SALE

   
   Upon completion of the Transactions, there will be approximately 25.9 million
shares  of Orion  Newco  Common  Stock  outstanding  on a fully  diluted  basis,
assuming a closing of the  Transactions as of January 30, 1997.  Orion's current
stockholders will initially hold approximately 14.5 million of these shares, all
of which will be freely transferable without restriction or further registration
under the Securities Act, other than the 5.5 million shares held by "affiliates"
of Orion Newco,  as that term is defined  under the  Securities  Act. The shares
held by  affiliates of Orion Newco are expected to be eligible for sale pursuant
to Rule 144 under the Securities Act. In general, under Rule 144 as currently in
effect,  a person  (or  persons  whose  shares  are  aggregated),  including  an
affiliate,  who has beneficially owned shares of Orion Newco (or shares of Orion
exchanged  for  shares of Orion  Newco)  for at least two years  (including  the
holding  period of any prior owner other than an affiliate) is entitled to sell,
within  any  three-month  period,  a number of shares  that does not  exceed the
greater of (i) 1% of the then  outstanding  shares of Orion Newco  Common  Stock
(approximately 111,000 shares outstanding immediately after the Transactions) or
(ii) the average  weekly  trading  volume of the Orion Newco Common Stock during
the four calendar weeks preceding such sale, subject to the filing of a Form 144
with respect to such sale and certain other  limitations  and  restrictions.  In
addition, a person who is not deemed to have been an affiliate of Orion Newco at
any time during the 90 days preceding a sale, and who has beneficially owned the
shares proposed to be sold (or shares of Orion exchanged for such shares) for at
least three  years,  would be  entitled  to sell such  shares  under Rule 144(k)
without regard to the requirements described above.
    

   The  Exchanging  Partners,  as owners of the Orion  Newco  Series C Preferred
Stock,  and  British  Aerospace  and  Matra  Marconi  Space,  as  owners  of the
Debentures,  will own the  remaining  11.4 million  shares of Orion Newco Common
Stock,  which will be issuable upon the  conversion of such  securities.  All of
such shares will be deemed to be "restricted securities" as that term is defined
in Rule 144.  Moreover,  each  Exchanging  Partner  will  enter  into a Transfer
Restriction Agreement regarding the transfer of the shares of Orion Newco Common
Stock  issuable upon  conversion  of, or as dividends on, the Series C Preferred
Stock. Pursuant to the applicable Transfer Restriction Agreement, each Exchang-
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ing Partner may not  transfer any shares of Orion Newco Common Stock issued upon
conversion of shares of Series C Preferred  Stock or as dividends on such Series
C Preferred Stock (the "Affected  Shares")  without the prior written consent of
Orion Newco  until the  expiration  of the Lockup  Period  (other  than  certain
transfers to affiliates).  Also, pursuant to the applicable Transfer Restriction
Agreement,  each Exchanging  Partner agrees that it will not transfer during any
90-day period Affected Shares that  collectively  represent more than 25% of the
aggregate  number of shares of Orion Newco Common Stock issuable upon conversion
of the Series C Preferred Stock received by such Exchanging  Partner pursuant to
the Exchange  Agreement  or as  dividends on such Series C Preferred  Stock (the
"25% Limit") unless any such transfer is (i) pursuant to an underwritten, public
offering  pursuant to a registration  statement  under the Securities  Act, (ii)
pursuant to a tender or exchange  offer made by or on behalf of the Company or a
third party,  (iii) in connection with a merger,  consolidation,  sale of all or
substantially  all  of  the  assets,  recapitalization  or  similar  transaction
involving  Orion Newco or (iv) pursuant to a transaction  not involving a public
distribution  or  offering  registered  under  the  Securities  Act and not made
through a broker,  dealer or  market-maker  pursuant  to Rule 144  (including  a
pledge  that  meets such  requirements);  provided,  however,  that prior to any
transfer of Affected Shares under clause (iv) above and prior to any transfer of
Orion Newco  Series C Preferred  Stock  other than under the  circumstances  set
forth in clause (i),  (ii) or (iii)  above,  the  transferee  shall  execute and
deliver to Orion Newco a transfer restriction agreement substantially similar to
the  Transfer  Restriction  Agreement  the  transferor  originally  entered into
(omitting the Lockup Period  provision  noted  above).  The 25% Limit  described
above will  terminate  on the date that is five years after the date of issuance
of the Orion Newco Series C Preferred  Stock under the Exchange  Agreement.  See
"The Merger,  the Exchange and the  Debenture  Investments  -- Certain  Transfer
Restrictions."
    

   The Exchanging Partners and holders of the Debentures will be granted certain
shelf,  demand and  "piggyback"  registration  rights with  respect to the Orion
Newco  Common  Stock  issuable  upon  conversion  of the  Orion  Newco  Series C
Preferred  Stock or such  Debentures,  respectively,  and the Orion Newco Common
Stock issuable as dividends  thereon or interest with respect thereto.  See "The
Merger, the Exchange and the Debenture  Investments -- Registration  Rights" and
"-- The Debenture Investments."

   No  predictions  can be made as to the  effect,  if any,  that sales of Orion
Newco  Common  Stock or the  availability  of  additional  shares of Orion Newco
Common Stock for sale by the Exchanging  Partners or other stockholders of Orion
Newco would have on the market price of the Orion Newco Common Stock  prevailing
from time to time or on the  ability of Orion Newco to raise  additional  equity
financing.  See "The  Merger,  the  Exchange and the  Debenture  Investments  --
Registration  Rights," "-- Certain  Transfer  Restrictions,"  "-- The  Debenture
Investments" and "-- Security  Ownership of Certain  Beneficial  Owners Prior to
and Following the Transactions."

                 COMPARATIVE RIGHTS OF ORION STOCKHOLDERS AND
                           ORION NEWCO STOCKHOLDERS

   Upon   consummation  of  the  Merger,   stockholders  of  Orion  will  become
stockholders  of Orion  Newco.  There are no  material  differences  between the
rights  stockholders  of Orion possessed prior to the Merger and the rights such
stockholders will have after the Merger as Orion Newco stockholders.
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<PAGE>
                       INFORMATION ABOUT ORION'S BUSINESS

OVERVIEW

   
   Orion  is  a  rapidly  growing  provider  of  satellite-based  communications
services, focused primarily on (i) private communications network services, (ii)
Internet services and (iii) video distribution and other satellite  transmission
services. Orion provides multinational  corporations with private communications
networks designed to carry high speed data, fax, video  teleconferencing,  voice
and other  specialized  services.  The  Orion  satellite's  ubiquitous  coverage
reaches all locations within its footprint,  enabling the delivery of high speed
data to  customers  in  emerging  markets  and remote  locations  which lack the
necessary infrastructure to support these services. The Company also offers high
speed Internet access and transmission  services to companies outside the United
States seeking to avoid "last mile" terrestrial connections and bypass congested
regional Internet network routes. In addition, Orion provides satellite capacity
for video  distribution,  satellite news gathering and other satellite  services
primarily to broadcasters,  news  organizations and  telecommunications  service
providers. The Company provides its services directly to customer premises using
VSATs.

   The Company commenced operations of the Orion 1 satellite in January 1995. As
of  September  30, 1996,  Orion  serviced  167  customers  through 304 points of
service.   The  Company's   customers   include  Amoco  Poland  Limited,   Amway
Corporation, AT&T Corp., BBC, British Telecom, CNN, Citibank, N.A., Deere & Co.,
Global  One,  GTECH  Corporation,  Hungarian  Broadcasting,  News  International
Limited, RTL Television, Pepsi-Cola International, Sprint Communications, Viacom
International Inc., Westinghouse Communications,  World Wide Television News and
Xerox Corporation,  or certain of their subsidiaries.  As of September 30, 1996,
Orion's contract  backlog was $123 million (after pro forma  adjustments for the
Exchange).  Substantially  all of Orion's  current  contracts with customers are
denominated in U.S. Dollars.  For the three months ended September 30, 1996, the
Company generated revenues of $12.2 million and had a loss from operations,  net
loss and EBITDA (as defined  below) of $(7.2)  million,  $(5.8) million and $1.7
million,  respectively. For the first nine months of 1996, the Company generated
revenues of $30.0  million and had a loss from  operations,  net loss,  net cash
used in  operating  actives  and EBITDA of  $(26.3)  million,  $(19.8)  million,
$(25.0) million and $0.1 million,  respectively.  "EBITDA"  represents  earnings
before minority  interests,  interest income,  interest  expense,  other expense
(income), income taxes,  depreciation and amortization.  EBITDA is commonly used
in the  communications  industry to analyze  companies on the basis of operating
performance,  leverage and  liquidity.  EBITDA is not intended to represent cash
flows for the  period and should not be  considered  as an  alternative  to cash
flows from  operating,  investing  or  financing  activities  as  determined  in
accordance  with  GAAP.  EBITDA is not a  measurement  under GAAP and may not be
comparable to other similarly titled measures of other companies.

   The Company believes that demand for satellite-based  communications services
will continue to grow due to (i) the  expansion of businesses  beyond the limits
of wide bandwidth terrestrial infrastructure,  (ii) accelerating demand for high
speed data services,  (iii) growing  demand for Internet and intranet  services,
especially  outside  the  U.S.,  (iv)  increased  size and  scope of  television
programming  distribution,  (v)  worldwide  deregulation  of  telecommunications
markets and (vi) continuing technological  advancements.  Satellites are able to
provide reliable,  high bandwidth services anywhere in their coverage areas, and
the Company  believes that it is well  positioned  to satisfy  market demand for
these services.

THE ORION SATELLITE SYSTEM

   The  Company  launched  Orion  1, a high  power  satellite  with  34  Ku-band
transponders,  in  November  of 1994.  Orion 1 provides  coverage of 34 European
countries,  much of the  United  States  and parts of  Canada,  Mexico and North
Africa.  Through  arrangements with local ground operators,  Orion currently has
the  ability to deliver  network  services  to and among  points in 27  European
countries,  portions of the United States and a limited number of Latin American
countries.

   The Company has recently  signed a contract  with Matra Marconi Space for the
construction  and launch of Orion 2. Orion 2 will expand the Company's  European
coverage  and extend  coverage to portions of the  Commonwealth  of  Independent
States, Latin America and the Middle East, as shown in 
    
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<PAGE>
more   detail  in  the   footprint   set  forth  below  under  the  caption  "--
Implementation  of the Orion Satellite System -- Orion 2." Orion 2 will increase
significantly  the  Company's  pan-European  capacity,  currently  the  area  of
strongest  demand for the Company's  services.  The Company  recently  commenced
selling  services in certain areas of Latin America.  Orion 2 is scheduled to be
launched in the second quarter of 1999.

   The Company has recently entered into an authorization to proceed with Hughes
Space for the construction and launch of Orion 3 and has commenced  construction
of Orion 3. Orion 3 will cover broad areas of the Asia Pacific region  including
China, Japan,  Korea, India,  Southeast Asia,  Australia,  New Zealand,  Eastern
Russia and  Hawaii,  as shown in more  detail in the  footprint  set forth below
under the caption "--  Implementation of the Orion Satellite System -- Orion 3."
Orion 3's  footprint  will provide the Company with the ability to  redistribute
programming  from the  United  States  via  Hawaii  to most of the Asia  Pacific
region.  The Company has already  taken a number of steps to  establish an early
market  presence in Asia, and has entered into an $89 million lease for eight of
Orion 3's 43  transponders.  Orion 3 is  scheduled  to be launched in the fourth
quarter of 1998.

   
   In the  aggregate,  the footprints of Orion 1, Orion 2 and Orion 3 will cover
over 85% of the world's  population.  Maps of the footprints of Orion 1, Orion 2
and Orion 3 are set forth below under the caption  "Implementation  of the Orion
Satellite System." 
    

THE ORION STRATEGY

   Orion's  strategy is to  maximize  its  revenues  per  satellite  transponder
through the delivery of value-added  services to end users. To quickly establish
a  stable  base  of  revenues,   Orion  sells  transponder   capacity  to  video
broadcasters  and  telecommunications   service  providers.   However,   Orion's
long-term  strategic  focus is on value-added  private network  services,  which
include network design, VSAT installation,  support and monitoring,  in addition
to basic satellite  capacity service.  The implementation of Orion's strategy is
based on the following elements:

   o  Focus on Specialized Communications Needs of Multinational Organizations

   o  Bridge to Emerging Markets and Remote Locations

   o  End-to-End Service

   o  Global Coverage

   o  Early Market Entry

   o  Local Presence

   o  Ownership of Facilities

   
_FOCUS ON SPECIALIZED COMMUNICATIONS NEEDS OF MULTINATIONAL ORGANIZATIONS
    

   Orion  targets  the  needs  of  multinational   businesses  and  governmental
customers for customized private network communications services.  Advantages of
the Company's  satellite-based  network services include:  (i) transmission over
wide areas to multiple dispersed sites including sites in emerging markets; (ii)
interconnectivity  among all sites;  (iii) wide  bandwidth and high data speeds;
(iv)  transmission  of  data,  fax.  teleconferencing  and  voice  over the same
network; (v) high transmission reliability,  quality and security; (vi) Internet
access; and (vii) rapid  implementation,  both for the initial  installation and
for later network modifications. Due to the flexibility of the network, Orion is
able to provide companies with customized solutions to link multiple locations.

   
_BRIDGE TO EMERGING MARKETS AND REMOTE LOCATIONS
    

   Orion  targets  customers  doing  business  in  emerging  markets  and remote
locations  of  developed  markets  which  often lack the fiber optic and digital
infrastructure  required  for wide  bandwidth,  high  speed  data  applications.
Terrestrial  transmissions  in many  emerging  markets  must often pass  through
local,  poorly developed network segments before reaching the customer premises,
making it difficult to
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<PAGE>
   
send and  receive  high  speed  data.  In  contrast,  Orion's  satellite  system
completely  avoids such  "bottlenecks"  in local network segments by sending and
receiving  transmissions  directly to and from  customers,  avoiding the need to
interconnect  with the local  infrastructure.  A significant  portion of Orion's
private  communications  network customers transmit  high-speed data to and from
locations  in  Central  and  Eastern  Europe.  Orion 2 and  Orion 3 will  extend
coverage to the Commonwealth of Independent  States,  Latin America and the Asia
Pacific Region.

                                 [GRAPHIC]

_END-TO-END SERVICE
    

   Orion provides its services  directly to and among customer  locations  using
satellite  transmission  and VSATs  installed  at  customer  premises.  Offering
end-to-end  services and bypassing  terrestrial  infrastructure  allows Orion to
offer higher  reliability  and higher  quality  services  than some  terrestrial
facilities by bypassing multiple  telecommunications service providers and local
networks and avoiding  related toll  charges.  It also permits  Orion to install
networks more quickly than many of its competitors,  who must deal with multiple
vendors and multiple  communications  technologies.  Orion offers its  customers
one-stop  shopping.  This includes a single point of contact,  an  all-inclusive
contract and consistent quality of service throughout the network.

   
_GLOBAL COVERAGE

   Orion believes that providing  global coverage is a competitive  advantage in
marketing to multinational  corporations.  Orion 1 covers 34 European countries,
much of the U.S. and  portions of Canada,  Mexico and North  Africa.  Orion uses
capacity  leased from other  carriers to  supplement  its network  coverage area
(such as to areas of Russia and Latin America).  Orion estimates that when Orion
2 (with coverage of Europe,  Russia,  the eastern United States,  Latin America,
North Africa and the Middle East) and Orion 3 (with coverage of the Asia Pacific
region) are deployed,  the satellite  footprints in the aggregate  will cover an
area inhabited by over 85% of the world's population.  This coverage will enable
Orion to offer its customers a single source for service offerings and a greater
measure of network quality control than terrestrial alternatives.

_EARLY MARKET ENTRY
    

   Orion develops an early market presence in targeted geographic areas prior to
satellite  launch in order to build its customer base. To accomplish this, Orion
hires sales people,  develops relationships with ground operators,  and delivers
its services using leased satellite capacity. Orion employed this
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<PAGE>
strategy  prior to the  commercial  operation  of the Orion 1  satellite  and is
pursuing the same approach with Orion 2 and Orion 3. For example, the Company is
currently  providing  service in Latin America and Russia over leased  satellite
capacity.

   
_LOCAL PRESENCE
    

   Orion has arrangements with 30 local ground operators covering most countries
within the Orion 1 footprint, and is entering into additional arrangements as it
offers services in new areas.  These ground  operators are critical to providing
integrated service because they obtain necessary licenses,  install and maintain
the  customers'  networks,  provide  in-country  business  experience  and often
facilitate market entry.

   
_OWNERSHIP OF FACILITIES
    

   Orion believes it is strategically important to own its satellite facilities.
Orion  believes  that  over the  long-term  ownership  of  satellite  facilities
provides a cost  advantage over  resellers and other private  service  providers
that must  lease  satellite  capacity  to provide  services  to  customers.  The
Company's  satellite ownership enables it to control the quality and reliability
of its network solutions,  maintain the flexibility to rapidly add capacity, new
locations  and new features to its  customer  networks,  and respond  quickly to
customer requests.

INDUSTRY OVERVIEW

   Fixed communications  satellites are generally located in geostationary orbit
approximately 22,300 miles above the earth and blanket large geographic areas of
the  earth  with  signal   coverage.   Satellites   are  thus  well  suited  for
transmissions that must reach many locations over vast distances  simultaneously
(i.e.,   point-to-multipoint   transmissions),   such  as  the  distribution  of
television  programming to cable operators,  television stations and directly to
homes.  Satellites  can be  accessed  from  virtually  any  location  within the
geographic  area they cover.  This  ubiquitous  coverage allows the satellite to
transmit voice and data  communications to remote locations and emerging markets
where terrestrial infrastructure is not well developed. Historically, satellites
were used primarily for international voice and data traffic,  using large earth
stations that enabled lower-power satellites to function as "cables in the sky."
The principal  drawback to  satellite-based  voice  transmission is the 1/4 of a
second delay caused by the signal  traveling to and from the  satellite.  In the
U.S.,  Western  Europe and Japan,  the use of  satellites  for voice traffic has
decreased  since the early 1980s with the growth of fiber optic cable  networks.
Geostationary  satellites now are used  primarily for  television  distribution.
However,  voice and data  traffic  remains the  dominant  use of  satellites  in
developing countries.

   Prior to the  late  1970s or early  1980s,  most  terrestrial  infrastructure
consisted of copper wire (and, to a lesser extent, microwave systems), which was
well suited for  ordinary  telephone  service.  Today most  developed  economies
employ fiber optic cables,  which provide much wider  bandwidth than copper.  In
addition,  transoceanic  cables  now link most major  industrialized  countries.
Fiber optic  cables are well suited for carrying  large  amounts of bulk traffic
between two fixed  locations,  and unlike copper wire facilities have sufficient
capacity to carry the high speed data communications that comprise an increasing
percentage of  communications  traffic.  However,  in many less developed areas,
terrestrial  facilities  still consist mainly of copper wire. Even in areas with
fiber optic  networks,  the "last mile"  connections to customer  premises often
consist of copper  wire.  As a result,  customers  with sites in areas which are
underdeveloped or which have not upgraded their "last mile" copper wire to fiber
optic  cable  often do not have  access  to the full  range of high  speed  data
communications demanded by many businesses.

   Satellites  provide a number of advantages  over  terrestrial  facilities for
many high speed communications  services.  First,  satellites provide ubiquitous
service within their  footprint and can deliver  service  directly to customers'
premises.  Satellites enable high speed communications service where there is no
suitable  terrestrial  alternative  available.   In  addition,   satellites  can
completely bypass terrestrial network congestion points, "last mile" bottlenecks
and  unreliable  networks of incumbent  service  providers  to provide  advanced
services to locations where  conventional  terrestrial  service is available but
inadequate.
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<PAGE>
Second,  the cost to provide  bandwidth via satellite does not increase with the
distance  between  sending and  receiving  stations.  Not only must  terrestrial
networks add physical  capacity to cover  additional  distances,  they must also
continually  reamplify  transmission  signals.  Satellites  are well  suited for
transmission   across   large   distances,    for   wide   bandwidth   and   for
point-to-multipoint   (broadcast)   applications.   Finally,   since  VSATs  are
relatively easy to install and/or relocate, high power satellite networks can be
rapidly installed, upgraded and reconfigured. In contrast, installation of fiber
optic cable is expensive, time consuming and requires obtaining rights-of-way.

   The current generation of high power Ku-band satellites,  such as Orion 1, is
particularly well suited to provide high speed business  communications services
in addition to video distribution  services.  The use of the Ku-band frequencies
(as  opposed to the  C-band  used by older  generations  of  satellites)  offers
reduced interference with ground communications.  This enables satellites to use
the higher  broadcasting  power necessary to support small,  low-cost VSAT earth
stations and makes it cost effective to transmit to or among numerous locations.

DATA NETWORKING

   During the past decade,  there has been significant growth in data networking
applications. The data networking market includes a number of types of services,
including  leased  lines for private  networks,  public data  network  services,
managed  network   services,   frame  relay  and  other  services  such  as  ATM
(asynchronous transfer mode) and WAN (wide area network) services. Ovum, Ltd. (a
U.K.-based   consulting   firm)   estimates   that   revenues   from   the  X.25
packet-switched  data  networking  services  in  Western  Europe  alone  totaled
approximately  $2.7 billion in 1996,  excluding  revenues  from such services as
leased lines, frame relay and ATM. Data networking applications include:

   
   Private network services;  intranets.  Many companies are utilizing their own
"private" networks to meet their specific communications requirements, including
voice  and  data  communications,   business  television  transmissions,   video
teleconferencing,  high speed fax and e-mail.  Corporate  networks  offer higher
performance,  greater  control and  security  than can be  provided  through the
public  network.   Corporations  are  also  taking  advantage  of  intranets  to
distribute information within their own companies using Internet technologies.

   Data inquiry,  collection and retrieval. Hotel and travel reservation systems
and  financial  enterprises  use private  communications  networks  for database
inquiries  and  retrieval of  information  stored on  computers.  Banks use such
networks to verify account  balances and connect  automatic  teller  machines to
computers.  Retail  establishments  verify credit standing and gather  inventory
information. Other businesses use private communications networks to gather data
from multiple locations and transport it to central locations for analysis.

   Internet. Business and consumers rely on the Internet for a growing number of
services,  including  research,  e-mail,  data exchange,  software and graphics,
financial  services  and  shopping,   and  even  voice   communications.   These
applications  are predicted to continue to expand and diversify in the future as
enabling technologies mature.

   Image  transmissions.   Manufacturing,   publishing,   research  and  medical
industries  use  dedicated  communications  networks for  high-resolution  image
transmissions requiring large amounts of bandwidth.

   Government  networks.  Network  telecommunications  are  employed for complex
military and nonmilitary government  applications,  including administrative and
logistical  functions,  that require high security and customer network control.
    

   Orion  believes  that the  demand  for  international  data  networking  will
continue to grow as a result of (i) the shift to client/server  computing,  (ii)
the  proliferation  of bandwidth  intensive  applications and the development of
protocols such as frame relay to handle these applications, and (iii) use of the
Internet and intranets as part of main-stream corporate communications.

   
        (i)  Shift  to  client/server  computing.  Businesses  are  increasingly
    shifting  from using  large host  computers  and  centralized  data  network
    architectures  to  distributed  PC and  workstation  based  platforms.  As a
    result,  businesses require more private network infrastructure to establish
    and interconnect  local and wide area networks.  As businesses  expand,  the
    ability to link multiple locations becomes more important. 
     
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<PAGE>
   
        (ii)  Proliferation of bandwidth  intensive  applications;  frame relay.
    Companies are relying more heavily on applications such as CAD/CAM and image
    transfer  that require more  bandwidth  and result in traffic  patterns that
    involve bursts of transmissions. In addition, there is increasing demand for
    near-instantaneous  response time and more reliable  data  transport.  Frame
    relay services  support these  applications and reduce the cost of fully and
    partially meshed  networks.  The Company expects that demand for frame relay
    services will experience rapid growth through the year 2000.
    

        (iii)  Expansion  in Internet  and  intranet  services.  The Internet is
    becoming a major vehicle for economic and social  activity  enabling  broad,
    global access to financial and business information,  research material, and
    information on leisure,  arts and general interest topics.  Business uses of
    the Internet include  communication within and among businesses,  electronic
    commerce,  advertising  and  merchandising.  Internet  usage has also led to
    increased  demand  for  "intranet"  services  for  corporate   applications.
    Intranet  servers are used for publishing  information,  processing data and
    data-based  applications and  collaboration  among employees,  vendors,  and
    customers.

   The significant growth in data networking services has led to rapid growth in
demand for satellite-based networks. Multinational companies are not always able
to implement client/server architectures, install wide bandwidth applications or
employ  Internet  and intranet  solutions in every market due to  underdeveloped
terrestrial communications infrastructure.  Therefore, a growing use of VSATs is
to provide wide bandwidth  capacity to industrial  sites in emerging markets and
remote locations.  Recent Comsys and Price Waterhouse reports have identified an
installed  base of 140,000 to 160,000  VSATs and predict  significant  worldwide
growth over the next few years.

ORION MARKET OPPORTUNITY

   
   The Company believes that demand for satellite-based  communications services
will  continue to grow  because of (i) the  expansion of  businesses  beyond the
limits of wide bandwidth  terrestrial  infrastructure,  (ii) accelerating demand
for high speed data  services,  (iii)  growing  demand for Internet and intranet
services,  especially  outside  the  U.S.,  (iv)  increased  size  and  scope of
television   programming    distribution,    (v)   worldwide   deregulation   of
telecommunications markets and (vi) continuing technological advancements.     

        (i)  Expansion  of  business   beyond  the  limits  of  wide   bandwidth
    terrestrial   infrastructure.    Overall   growth   in   the   international
    telecommunications market reflects the increasingly  international nature of
    business,  the  increasing  importance of emerging and newly  industrialized
    economies and the increase in international trade.  International businesses
    expanding into emerging  markets often rely on the incumbent  communications
    service  providers  for  voice  circuits.  However,  as large  organizations
    increasingly rely on more sophisticated,  high speed communications services
    to  run  their   businesses,   many  of  these  companies  face  operational
    bottlenecks when attempting to implement more  sophisticated  communications
    networks. These problems are faced both by companies in emerging markets and
    companies   in   developed   markets   that  rely  on  "last  mile"   copper
    infrastructure  to  interconnect  with a  fiber  optic  network.  Satellites
    provide wide  bandwidth  end-to-end  service  directly  connecting  customer
    premises and bypassing the limitations of terrestrial facilities.

   
        (ii)  Accelerating  demand for high speed data  services.  The growth of
    graphical   user   interfaces,   the   popularity   of   bandwidth-intensive
    applications  such  as  CAD/CAM,   the   incorporation  of   high-resolution
    electronic images into business  processes and video  teleconferencing  have
    necessitated  major upgrades of corporate  data networks to accommodate  the
    high data transfer  requirements of these  applications.  Most of these high
    speed data  services  require  fiber  optic  cable or other  high  bandwidth
    connections to the customer premises.  Even in developed markets,  the "last
    mile"  connection to the customer  premises  often  consists of copper wire,
    which cannot  support  many high speed data  services.  Satellites  are well
    positioned  to take  advantage of this trend  because they provide  reliable
    high bandwidth service everywhere in their coverage areas, reaching sites in
    underdeveloped areas, and bypass "last mile" copper wire facilities that are
    unable to support high speed communications.     

        (iii) Demand for Internet and intranet services.  The growth in Internet
    and   intranet    services   has   further   strained    corporate   network
    infrastructures.  The  utility  of  Internet  services  to  users  is  often
    constrained by the lack of sufficient  bandwidth to support  high-resolution
    graphical applications and
                                       80
<PAGE>
   
images.  Even  where  infrastructure  quality is high,  the rapid  growth of the
Internet continues to create network  congestion.  Users are sometimes unable to
use current-generation software or gain high speed access to the Internet due to
the poor quality of their local terrestrial infrastructure. Satellites have many
advantages in delivering  Internet  services.  Satellite-based  networks provide
services directly to customer premises,  bypassing  terrestrial  bottlenecks and
congested Internet routing facilities. In addition, satellite based networks can
be designed to support  asymmetric  and  multicast  Internet  traffic  much more
efficiently than terrestrial networks.
    

   (iv) Increased  size and scope of television  programming  distribution.  The
global television market is experiencing  significant  growth,  both in terms of
the number of  broadcasters  creating  programming  and the  number of  channels
available to viewers.  Within the U.S.,  the number of television  broadcast and
cable  television  program  networks grew from three in 1970 to over 100 in 1993
and to  approximately  200 in 1996.  U.S.  and  international  broadcasters  are
seeking to expand into each others'  markets,  increasing the need for satellite
transmission capacity. Non-U.S.  broadcasters are using international satellites
to  distribute  domestic  programming  to U.S. and other  overseas  audiences of
similar cultural heritage.  Furthermore, the Company believes that as the number
of  broadcasters  and channels  increases,  individual  competitors  will have a
greater need for competitive differentiation which will increase the use of live
transmissions  and  expand  television  coverage.  Multichannel  programming  is
expanding  rapidly in Eastern  Europe,  Latin  America  and Asia.  The growth in
multichannel programming has increased the demand for international  programming
such as news and sports.  Orion is well  positioned  to take  advantage  of this
growth due to its high-power Ku-band satellite and transatlantic footprint.

   (v) Worldwide  deregulation of  telecommunications  markets.  During the past
decade many countries have liberalized their telecommunications markets in order
to permit new competitors to provide facilities and services. These changes have
been particularly  apparent in Europe,  where Orion currently has the ability to
deliver  network  service to and among points in 27 countries.  Deregulation  is
also creating new competitors to national  telecommunications  companies,  which
represent potential additional customers for the Company's services.

   (vi)   Continuing   technological   advancements.    The   following   recent
technological advances are expected to increase capacity,  efficiency and demand
for satellite services:

   
        1. High Power  Satellites.  The ability of service  providers to deliver
    high quality  services  directly to customer  premises has greatly  improved
    with the development of high power satellites. Older, lower power satellites
    require large, expensive earth stations to receive transmissions.  Typically
    these  earth  stations  were  located   outside  urban  areas  and  required
    interconnection with public telephone systems.  High power satellites,  such
    as Orion 1, enable the use of small,  inexpensive  VSAT earth  stations that
    may be installed at customer locations,  thereby reducing customer costs and
    bypassing all terrestrial facilities.     

        2. Meshed Network Services.  Traditional VSAT networks employ a hub/star
    architecture  anchored by an expensive  hub earth  station that controls the
    network and  communicates  with each of the VSATs.  Recent  advances in VSAT
    technology  have  led  to  the  creation  of  fully  meshed  satellite-based
    networks.  These  networks  offer  less  transmission  delay  than  hub/star
    networks by enabling any network node to communicate  with any other network
    node directly  through the satellite  without  having to transmit  through a
    central network control point.

        3. Frame Relay.  The Company  believes  that despite  rapid  advances in
    network  services and  application  software,  many  companies  hesitated to
    implement  meshed data  networks  due to high  overhead  costs  generated by
    descriptive and routing  commands  required to travel with the data traffic.
    Frame relay technology  reduces the number and complexity of commands needed
    to send data, and enables companies to implement more cost-effective  meshed
    networks.  To meet  customers'  demands for fully meshed frame relay network
    services, the Company has developed its VISN service.

   
        4. Compressed  Digital Video.  CDV technology is designed to compress up
    to ten  high-quality  video channels into the same bandwidth that previously
    carried  one or two analog  channels.  This  technology  is creating a rapid
    expansion in the number of available video chan-
    
                                       81
<PAGE>
   
    nels with improved  transmission quality. CDV lowers the per-channel cost of
    delivering  programming via satellite and cable television systems,  thereby
    enabling more  programming  options to be provided to smaller  markets.  The
    Company  believes  that CDV will  enable  continued  growth in the number of
    video channels and also accelerate broadcasters' efforts to distribute their
    programming internationally.  The Company also believes that CDV will result
    in higher total revenues per transponder as more customers can be served per
    transponder.  However,  CDV may  also  in  effect  increase  the  supply  of
    satellite  transponders,  causing  prices to decline.  See "Risk  Factors --
    Risks  Relating  to  Orion's  Business  --  Potential   Adverse  Effects  of
    Competition."  Although CDV is just beginning to be adopted in the industry,
    as of September 30, 1996,  approximately 63% of Orion's video customers used
    CDV technology.
    
ORION SERVICES
   
   Orion provides  satellite-based digital communications services comprised of:
(i)  private  network  services  for  multinational  business  and  governmental
customers,  (ii)  Internet  backbone  and access  services  and (iii)  satellite
transmission  capacity  services,  including  video  distribution  services  for
broadcasters, news organizations and international carriers. As indicated by the
charts below,  61% of revenues for the nine months ended September 30, 1996 were
derived from the sale of satellite  capacity  (primarily for video  distribution
services). However, 62% of bookings for the nine months ended September 30, 1996
were from private  network and Internet  services.  These figures are consistent
with  Orion's  strategy of building a stable base of revenues  through  sales of
transmission  capacity and then focusing on the delivery of value-added  private
network services to end-users.

          Revenues for None Months ended          Booking for Nine Months ended
               September 30, 1996                      September 30, 1996
               ------------------                      ------------------

               Internet Related                        Internet Related
                     2%                                       16%
   Private                                     Private 
   Network       [GRAPHIC]                     Network   [GRAPHIC]
     37%                                         46%   
                                  Video                            Video     
                              Transmission                     Transmission  
                                   61%                              38%  
- ----------
    * Bookings  represent new customer contracts executed during the period. See
      "Risk  Factors -- Risks  Relating  to Orion's  Business  --  Uncertainties
      Relating to Backlog."

 PRIVATE COMMUNICATIONS NETWORK SERVICES

   International  Leased  Line  Services.   Orion's  international  leased  line
services include Digital Link and Digital  Channelized Link. Digital Link can be
designed as a  "point-to-point"  private  network  service  directly  connecting
customer locations or as a  "point-to-multipoint"  service for customers seeking
to transmit  communications  from a central  location to numerous  remote sites.
Orion also offers  Digital  Channelized  Link, a multiplexed  version of Digital
Link that integrates  digitally  compressed  voice,  fax and data traffic into a
single  channel.  Digital Link and Digital  Channelized  Link services have been
offered by Orion since 1993. International leased line services have constituted
a majority of Orion's  bookings of private  communications  network  services to
date.

   One  customer,  a  major  multinational  consumer  goods  company,   required
voice/fax and data  connectivity from nine offices in Central and Eastern Europe
to the company's U.S. headquarters, utilizing data speeds of up to 128 Kbps. The
sites are  manufacturing  centers for the customer's soap and toiletry  products
and the customer uses Orion's service for managing  inventory and "just-in-time"
order entry. 
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<PAGE>
The customer was seeking a "one-stop  shopping"  solution  delivered by a single
network service provider.  The customer investigated two alternative  networking
solutions and selected satellite connectivity provided by Orion over terrestrial
facilities provided by the local PTTs due to superior quality.

    International  Data Networking  Services.  Orion's  fully-meshed frame relay
based  international data networking  service,  "Virtual Integrated Sky Network"
("VISN"),  allows  customers  to  transmit  and  receive  voice,  fax  and  data
communications,   including   intranet   services,   among  multiple   locations
simultaneously.  VISN was  developed  by Orion and is produced by Nortel Dasa (a
joint venture among Northern  Telecom,  Dornier GmbH, and Daimler Benz Aerospace
AG). The first phase of this service became available to customers commencing in
the third  quarter  of 1995,  and  subsequent  phases of the  service  have been
introduced during 1996 and are expected to be introduced during 1997,  including
the  addition of video  teleconferencing.  VISN offers  customers  bandwidth  on
demand for data, voice and fax and, following the introduction of in-process and
future releases, customers will have the option to be charged on a "pay per use"
basis  (e.g.,  minutes of use for voice and volume for data).  VISN employs TDMA
technology,  which will further increase the effective  bandwidth  available for
data transmission.  The VISN product was awarded "Best New Transport  Technology
Product" at the 1995 ComNet New Product  Achievement  Awards  Competition.  Most
customers have between four and ten sites, and generally have minimum data rates
with  the  ability  to  use  substantially   greater  bandwidth  for  bursts  of
traffic.

   A VISN customer,  Creditanstalt  Bankverein,  Austria's  second largest bank,
needed a voice and data network among all of its branches in Central and Eastern
Europe. Data applications  varied from electronic mail to transfer  transactions
to its data  center in Vienna,  along with voice  requirements  for  interoffice
telephone   calls  and  facsimile   transmission.   Creditanstalt   investigated
terrestrial  leased  line and  dial-up  services  to satisfy  its  requirements.
Orion's VISN service  offered full meshed,  frame relay  network  service  which
supports both  voice/fax  and data  transmission  simultaneously.  Creditanstalt
replaced its terrestrial network with a nine site VISN network using data speeds
of up to 256 Kbps.

_INTERNET BACKBONE AND ACCESS SERVICES

   The  Company  believes  that the rapid  growth of the  Internet  has  created
substantial  opportunities  for Orion.  First,  the United States has become the
residence of the majority of the world's Internet content. Companies are looking
for reliable, wide bandwidth connections which bypass congested Internet network
segments. Orion's transatlantic capacity is well suited for companies in Europe,
including Internet Service Providers ("ISPs"),  seeking high-speed access to the
U.S.  Internet.  Second,  the Internet has begun to evolve from a user  centered
"pull" environment (users requesting information) to a content provider centered
"push" environment  (information delivered to users without concurrent request).
Broadly distributed entertainment,  information and advertising via the Internet
are well suited for broadcast,  point-to-multipoint  communications  facilities,
such as satellite.  By using  satellite  broadcasts to transmit the most popular
Internet content to regional locations,  ISPs can reduce their costs and relieve
network  congestion.   Finally,   Internet  data  communications  are  typically
asymmetric.  A typical, large Internet data transmission is predicated by a user
request  that  comprises  only a few  bytes  of  traffic.  This  interaction  is
inefficient when carried over terrestrial full-duplex networks,  which carry the
same  capacity in both  directions.  Orion's  satellite  based  solutions can be
designed  with  different  amounts of capacity in each  direction,  providing an
inexpensive  circuit for user  requests and  high-speed,  reliable and available
capacity for the data that flows back to the user. 
    

   Although Orion's Internet services were introduced only in the second quarter
of 1996, sales of such services  constituted 16% of new service bookings for the
nine months  ended  September  30, 1996.  Orion  offers  three  Internet-related
services, described below.

   
   ISP Backbone  Service.  Orion's  DirectNet I service is designed for European
ISPs.  The  service  combines a  dedicated,  high speed  point-to-point  circuit
between the ISP's points of presence in Europe and the North  American  Internet
through a dedicated,  fully  redundant  backbone  connection.  Orion also offers
additional  features with its  DirectNet I service,  including  24-hour  network
monitoring,  control and support and a 99.5% network availability  guarantee and
associated  downtime  credits.  Orion is pursuing  requirements or joint venture
arrangements  with ISPs in which  all of their  transatlantic  traffic  would be
carried over Orion 1 as it develops.  For example, Orion has an arrangement with
PSINet  Inc.  in which
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<PAGE>
Orion has agreed to serve as the  supplier  for  PSINet's  backbone,  connecting
PSINet's  various  points of presence in Europe to the U.S.  Internet  backbone.
Orion's ISP customers include, for example, companies such as Global Ukraine, an
ISP based in Kiev.  Global Ukraine sought  Internet  connectivity  to the United
States  backbone with advanced  technical  features.  Orion now provides  Global
Ukraine  with a 256 Kbps  circuit  from the Ukraine to the United  States with a
connection  into the U.S.  Internet at three network  access  points,  providing
route  diversity and ensuring fast response time by avoiding points of potential
network congestion.  Orion does not expect DirectNet I to generate more than 10%
of its revenues.     

   Corporate  Internet  Access.  Orion's  DirectNet  II  service  is  offered to
international corporations requiring high volume data transmission in connection
with  World  Wide  Web  browsing  and  downloading.   DirectNet  II  provides  a
point-to-point circuit between the North American Internet and the corporation's
premises.  Orion offers large corporations  Internet access service by reselling
the Internet access services of several large ISPs, such as DIGEX and UUNet.

   
   Multicast  Satellite-Based  Internet Services.  Orion recently introduced its
WorldCast  service which allows ISPs or corporate users to significantly  reduce
Internet  bandwidth  and  ground  facility  costs.  The  service  is based on an
asymmetric architecture which couples wide bandwidth satellite broadcasting with
narrow bandwidth terrestrial links to the Internet.  Furthermore,  WorldCast can
provide a single channel that is shared among multiple ISPs,  which can remove a
significant  amount of traffic from ISP  terrestrial  networks.  The Company has
recently  taken  orders  from  customers,  but is not  currently  providing  any
customers with this service.

_VIDEO DISTRIBUTION AND OTHER SATELLITE TRANSMISSION SERVICES

   Orion provides  transmission  capacity to cable and  television  programmers,
news and information networks,  telecommunications  companies and other carriers
for a variety of applications.  Approximately two-thirds of Orion's transmission
capacity  services  consist of video services.  The Company offers  transmission
capacity  services under long term  contracts,  with  approximately  35% of such
services being under contracts of three years or less, 14% being under contracts
of  approximately  four to six years in  duration  and  approximately  51% being
delivered  under  longer  term  contracts  (such  percentages  being  based upon
contract values).  The remainder consists principally of occasional use services
for periods of up to a few hundred hours.

   Video   Services   --   Contribution.    Orion's   video   services   include
"contribution,"  the  long-distance  transport of video signals  (usually one or
more  television  channels) to one location.  Viacom has leased capacity for one
channel on Orion 1 for the purpose of occasional or full time  transmission  for
video  programming from its U.S.  facilities to a broadcast  facility in London.
From  there it can be  inserted  into  programming  and  rebroadcast  in Europe.
Orion's  contribution  services also include  transport of news  programming for
RTL, a major commercial broadcast network in Germany. RTL needed to interconnect
its various news bureaus in Germany and the U.S. to transmit news stories to its
headquarters  in Cologne.  Orion provided 24 MHz of  transatlantic  transmission
capacity  service  allowing  transmission  of RTL's  programming  in  compressed
digital video format.

   Video Services -- Distribution.  Cable and television programmers use Orion's
satellite  transmission  services for distribution of television  programming to
local  broadcast  stations,   cable  head-ends,   MMDS  (multichannel  microwave
distribution) systems and SMATV (satellite master antenna television). Orion has
a joint  marketing  agreement  with NTL, which operates one of the largest video
gateways in Europe,  located in downtown London. Orion and NTL offer programmers
uplink,  compression and  distribution to cable head-ends  throughout the United
Kingdom and to locations in Europe.  Orion's ability to offer video distribution
services is aided by the  transponder  switching  capabilities of Orion 1, which
are (and those of Orion 2 and Orion 3 are  expected  to be)  designed  to permit
programs to be distributed  simultaneously  throughout the satellite's  coverage
area.
    

   Orion's video distribution customers include Black Entertainment  Television,
Inc.  ("BET"),   which  was  seeking  a  video  distribution   service  for  the
distribution  of its  BET On  Jazz  International  Network,  an  internationally
distributed  programming  network  dedicated  to  international  Jazz and  Blues
artists.  
                                       84
<PAGE>
BET required  receipt of its signal at its  headquarters  in  Washington,  D.C.,
conversion to a European TV standard,  digital  compression and uplinking of the
compressed  digital  video  signal  for  distribution  to cable head ends in the
United Kingdom and other sites in Europe.

   
   News and Special Events.  Orion 1 is used for  transmission of special events
or remote  feeds to  international  news bureaus  from  television  stations and
on-location  mobile  transmitters.  Because Orion's Ku-band  technology and VSAT
ground segment infrastructure offers high reception sensitivity,  the Company is
especially  effective in transmitting  television  signals sent from low-powered
portable   transmitters   typically  used  by  news  organizations  and  program
distributors.  In  contrast  to video  contribution  services,  news and special
events are  characterized  by  occasional  use rather  than  long-term  capacity
contracts.  CNN selected  Orion's service for its coverage of Bosnia,  and Orion
provided service to the European Broadcasting Union for coverage of the Olympics
in Atlanta.

   International Carriers. Orion satellite transmission services are used by
international carriers to provide backup for terrestrial lines and to provide
communications services to areas with inadequate telecommunications
capabilities. These carriers resell Orion's capacity as part of their own
services.
    
   
   Capacity  Sales.  Orion  sells bulk  capacity  to  resellers  who use Orion's
transmission capacity as one component of a customer's end-to-end communications
solution.  For example, Orion currently sells capacity to a number of firms that
resell Orion's capacity to governmental organizations.

   Orion offers a range of value-added  services in  conjunction  with its video
distribution  and other  satellite  transmission  services.  Such  services  may
include  the  provision  of video  uplinking  and  receiving  stations,  digital
compression  equipment  and  software,   transmission  monitoring,  and  gateway
interconnection services.

FEATURES AND BENEFITS

   Orion's  satellite-based  services  offers  customers  a number of  important
features, which provide significant benefits versus competing alternatives.

        Bypass terrestrial network and multiple international connection points.
    Orion's  ability  to  bypass   terrestrial   facilities   improves   service
    reliability and quality by reducing potential points of failure and avoiding
    "last mile"  limitations.  In addition,  terrestrial  bypass allows Orion to
    avoid the multiple  in-country  toll charges of  terrestrial  facilities and
    thereby reduces cost.

        Direct end-to-end service to customer sites. Orion provides service from
    rooftop to rooftop using VSAT earth stations  located on customer  premises.
    This "end-to-end  service" is reliable,  rapidly installed,  easily upgraded
    and avoids the "last mile" limitations of some terrestrial alternatives.

        Ubiquitous  coverage.  Orion delivers wide bandwidth service to emerging
    markets  and  remote  locations  where  there are no  effective  terrestrial
    alternatives.

        One-stop  shopping.  Orion provides its customers with a single point of
    contact for customer care, including service, billing and support.

        Two-way  communications for all sites.  Orion's meshed network solutions
    and frame relay services promote network efficiency and allow real-time data
    transfer among dispersed network points.

        Well-suited  for  asymmetric  communications  traffic.  Orion's  network
    solutions can be designed to carry  asymmetric  traffic  efficiently,  which
    increases  performance  and lowers cost to customers  for  services  such as
    Internet services.

        Point to multipoint capability. Orion's ability to broadcast video, data
    and voice to multiple  locations  simultaneously  enables  efficient network
    design.

        High power Ku-band transmissions,  high reception  sensitivity.  Orion's
    high power  transmissions allow customers to lower costs by utilizing small,
    less  expensive  earth station  equipment.  Orion 1's reception  sensitivity
    allows for effective reception from portable earth stations, an advantage in
    satellite news gathering.
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<PAGE>
        Cost-competitive.  Orion prices its services to be competitive with both
    satellite-based and terrestrial alternatives.
    

CUSTOMERS AND BACKLOG

   Customers.  As of September 30, 1996,  Orion had entered into  contracts with
167 customers, principally large multinational corporations,  European companies
and governmental  agencies.  These entitles come from many different industries,
including communications,  broadcasting,  manufacturing, government, banking and
finance,  energy, lottery,  consumer distribution,  Internet access services and
publishing. Selected customers from each service area are set forth below.

                            SELECTED ORION CUSTOMERS

<TABLE>
<S>                                     <C>                                  <C>
Private Network Services:               AT&T                                 Deere & Company           
 Digital Link/Digital Channelized       Amoco                                EDS                       
  Link                                  Amway                                GE Americom               
                                        Chase Manhattan Bank                 Global One                
                                        Citibank                             News International Limited
                                        Concert                              Westinghouse              
                                                                                                       
                                                                                                       
Private Network Services:               Balluff & Co.                        Pepsi Cola                
 VISN                                   Creditanstalt                        Price Waterhouse          
                                                                                                       
                                                                                                       
Internet-related                        Am. Univ. of Bulgaria                LV Net Teleport           
                                        Banknet                              Spectrum                  
                                        BITS                                 Terminal Bar              
                                        Datac                                TSSA Nask                 
                                        Global Ukraine                         
                        
Video Transmission and Other            AsiaNet                              Hughes Network Systems
                                        Black Entertainment Television       Hungarian Broadcasting
                                        Bonneville International             MCI                   
                                        British Telecom                      RTL Television        
                                        CNN                                  Telecom Italia        
                                        Comsat                               Viacom International  
</TABLE>

   
   More  than  half of  Orion's  customers  are  based in the  U.S.,  but  these
customers have a substantial  majority of their points of service in Western and
Eastern Europe, as indicated in the chart below.

                    167 Customers                    304 Points of Service
                    -------------                    ---------------------

U.S.                     52%                                  21%
Eastern Europe           14%                                  44%
Western Europe           34%                                  35%
    
  
                                     86
<PAGE>
   
   Orion has entered into a contract with DACOM Corp.,  a Korean  communications
company which provides international and long distance telephone and leased line
services, international and domestic data communications and value added network
services. Under the contract,  DACOM will, subject to certain conditions,  lease
eight  dedicated  transponders  on  Orion  3 for  13  years  for  direct-to-home
television  service and other  satellite  services,  for $89 million  payable in
installments  from  December  1996  through  seven  months  following  the lease
commencement  date of the  transponders.  DACOM has the right to  terminate  the
contract  before March 1997 (and Orion would retain the $10 million  paid) if it
fails to obtain certain approvals. Payments are subject to refund if Orion 3 has
not been successfully  launched and commenced  commercial  operation by June 30,
1999.  Although  Orion 3 is  scheduled  to be launched in the fourth  quarter of
1998,  there can be no  assurance  that Orion will be able to meet the  delivery
requirement of this contract.

   Backlog.  At September  30,  1996,  Orion had  approximately  $123 million of
contracts  in  backlog   (after  giving  effect  to  the  Exchange  and  related
transactions, which will result in changes to arrangements with Limited Partners
that reduce backlog by approximately $11 million),  as compared to approximately
$95 million at September 30, 1995. The backlog contracts generally have terms of
between three and four years.  Orion presently  anticipates  that at least $86.4
million of its backlog will be realized  after 1997.  Orion has begun to receive
contract  renewals  under  expiring   contracts  (under  some  of  the  earliest
contracts,  which  were  entered  into in 1993).  The size of  contracts  varies
significantly,  depending on the amount of capacity required to provide service,
the  geographic  location  of the  network and other  services  provided.  As of
September 30, 1996, Orion had a VSAT installation backlog of 68 units.
    

   Although many of the Company's  customers,  especially  customers under large
and long-term  contracts,  are large  corporations  with  substantial  financial
resources,  other  contracts  are with  companies  that may be  subject to other
business or  financial  risks.  If  customers  are unable or  unwilling  to make
required  payments,  the Company  may be required to reduce its backlog  figures
(which would result in a reduction in future revenues of the Company),  and such
reductions  could be substantial.  The Company has recently  instituted  tighter
credit policies,  and has taken steps to remove from backlog  arrangements  with
customers who have not taken service or have not made all required payments.  In
the second quarter of 1996, the Company determined that one large customer under
a long-term contract (accounting for backlog of approximately $19.9 million) was
not likely to raise  necessary  financing  to  commence  its service in the near
future,  and accordingly the Company no longer  considers such contracts part of
its backlog.  Also in the second quarter of 1996,  the Company  removed from its
backlog contracts with a customer  (accounting for backlog of approximately $4.5
million)  which had ceased  paying  for the  Company's  services.  In the fourth
quarter of 1996, the Company  removed $10.4 million from its backlog  related to
contracts under which customers  failed to use the contracted  service or failed
to make timely payment.  The Company's contracts commence and terminate on fixed
dates.  If the Company is delayed in commencing  service or does not provide the
required service under any particular  contract,  as it has occasionally done in
the past, it may not be able to recognize all the revenue it initially  includes
in backlog under that contract.  In addition,  the current backlog contains some
contracts  for the  useful  life of  Orion 1; if the  useful  life of Orion 1 is
shorter  than  expected,  some  portion of backlog  may not be  realized  unless
services  satisfactory  to the customer can be provided over another  satellite.
See "Risk  Factors  -- Risks  Relating  to  Orion's  Business  --  Uncertainties
Relating to Backlog."

   
SALES AND MARKETING
    

   Orion uses both direct and indirect sales channels. Orion markets its private
communications  network  services and Internet  services  through  direct sales,
local  representatives  and  distributors  in Europe and the United States,  and
wholesale   arrangements  with  major  carriers,   Internet  service  providers,
resellers  and systems  integrators.  Orion markets its video  distribution  and
other satellite transmission services primarily through direct sales. Orion also
has established  arrangements  with local companies in most countries within the
Orion 1 footprint to assist Orion with selling  efforts and to provide  customer
support and network maintenance functions in those countries (as discussed below
under the caption "Network Operations; Local Ground Operators").
                                       87
<PAGE>
   
   Orion  generally will enter into a single  contract with  customers  covering
service to a number of  countries.  Orion offers the business  customer a single
point-of-contact,  a single contract and one price for its entire network, which
Orion believes  constitutes true "one-stop  shopping." Orion prices its services
centrally,  using a single,  easily  administered set of pricing  procedures for
customer networks.     

   Marketing  will be critical to Orion's  success.  However,  Orion has limited
experience in marketing,  having  commenced full commercial  operations in 1995.
Orion's marketing program until recently  consisted of direct sales using a U.S.
based sales force and indirect sales channels,  including  Limited Partner sales
representatives,  for sales in Europe. The majority of Orion's contract bookings
to date have been  generated by its direct sales force.  Certain of its indirect
sales channels in Europe have not met expectations. Orion has been significantly
increasing its direct sales capabilities in Europe, particularly with respect to
sales of private communications  network services.  Although Orion believes that
the increase in its European  sales  capabilities  will  increase its  bookings,
there can be no assurance regarding the timing or amount of such increase. Sales
of Orion's services  generally  involve a long-term  complex sales process,  and
Orion's  bookings  have  fluctuated  significantly.  See "Risk  Factors -- Risks
Relating to Orion's  Business  -- Risks  Relating  to  Potential  Lack of Market
Acceptance and Demand; Ground Operations."

   
   The  Company  may from time to time  enter  into  joint  ventures  or acquire
businesses  which  provide it with  additional  customers  or which  enhance its
marketing  capabilities.  Although the Company is presently considering one such
possible acquisition, it does not have binding arrangements at the present time.
The Company  believes that such  acquisition,  if consummated,  would not have a
material  effect on the Company.  See "Risk Factors -- Risks Relating to Orion's
Business -- Risks Concerning Ability to Manage Growth."

_DIRECT SALES

   As of December  15,  1996,  Orion has  assembled  a direct  sales force of 31
full-time employees in the United States and Europe (compared to 26 employees at
June  30,  1996) to offer  its  private  communications  network  and  satellite
transmission  services.  Approximately  68% of the  sales  force is based in the
United  States (in  Maryland) and  approximately  32% is based in Europe.  Orion
expects to  continue to expand its sales force  significantly  throughout  1997,
both in the U.S. and Europe.

_INDIRECT SALES CHANNELS

   Representatives/Distributors.  Orion  has  entered  into  agreements  for the
marketing of its private  communications network services in the United Kingdom,
France, Germany,  Austria, Italy and other European countries.  These agreements
call  for  sales,   marketing  and  customer   support   services  in  specified
geographical areas, generally on a non-exclusive basis. Generally,  the duration
of these agreements is three years.  Third party sales  representatives  receive
commissions and fees for sales and customer support services,  each of which are
payable  over the life of the customer  contracts to which the  representative's
services  relate  and  which  are  based  upon  the  revenues   derived.   Sales
representatives are supervised by Orion sales managers,  who establish marketing
strategies with the  representatives,  establish  pricing,  attend certain sales
calls,  develop marketing  materials and sales training tools,  coordinate joint
efforts in promotional  events and provide  information  about Orion's services.
Orion also  provides  engineering  support to its sales  representatives.  Orion
provides  some  of  these   functions  to  support  the  sales  efforts  of  its
distributors.  Distributors  purchase  Orion's  services at wholesale prices and
resell those services to customers at prices determined by the distributors. Two
Limited Partners who serve as sales  representatives  (and ground operators) are
entitled to receive  additional  commissions  under a "profit  sharing"  formula
based on their  overall  contribution  to sales,  but no amounts  have been paid
under such formula to date.  Orion expects that unless  Limited  Partners  sales
representatives  increase their sales  significantly,  payments under the profit
sharing arrangement will be not be material.

   Major  Carriers and Other  Wholesalers.  Orion has entered  into  distributor
resale arrangements with major carriers, teleport operators, resellers and other
companies in the United States and internationally. These distributors typically
purchase  communications  network  services  from Orion at a wholesale  rate for
resale to their  customers.  This  represents an important sales channel for the
Company, and the 
                                       88
<PAGE>
Company is focusing on strengthening these relationships.  Major carriers employ
substantial  sales forces and have the advantage of being existing  providers to
many of Orion's target  customers,  which makes  marketing  easier and increases
awareness of customer needs.
    

NETWORK OPERATIONS; LOCAL GROUND OPERATORS

   
   Orion  has  a  centralized  network  operations  function  at  its  corporate
headquarters  in  Rockville,  Maryland,  supported  by  arrangements  with local
companies in most  countries  within the Orion 1 footprint who assist Orion with
selling efforts and perform customer support and network maintenance  functions.
Orion's relationships with ground operators are critical to providing integrated
service because ground operators obtain necessary licenses, install and maintain
the  customers'  networks,  provide  in-country  business  experience  and often
facilitate market entry.

   Network  Operations.  Once Orion enters into a contract  with a customer,  it
finalizes the design of the customer's network,  acquires the required equipment
and  arranges  for the  installation  and  commissioning  of the  network.  Upon
commencement  of service,  Orion also monitors the  performance  of the networks
through its U.S.  based  network  management  center,  located at its  corporate
headquarters in Rockville,  Maryland, and from facilities in Europe. The network
management  center  allows Orion to perform  diagnostic  procedures  on customer
networks and to reconfigure  networks to alter data speeds,  change  frequencies
and provide additional bandwidth.

   Ground Operators.  Through arrangements with 30 local ground operators, Orion
currently has the ability to deliver network services (through Orion 1 or leased
capacity on other satellites) to or among points in 27 European  countries,  the
United  States and Mexico  (which  comprise  substantially  all of the countries
within the coverage area of Orion 1), as well as arrangements to deliver network
services  in  certain  other  Latin  American  countries.  The  ground  operator
agreements call for  installation  and maintenance of VSATs and other equipment,
customer support and other functions in designated geographical areas, generally
on a non-exclusive  basis.  Generally,  such ground  operations  agreements last
three years.  Orion coordinates  ground operations  services  (including service
calls) by its local agents through centralized  customer service centers located
at Orion's  corporate  headquarters  and at its facil ities in Amsterdam.  Orion
also provides its ground operators with  installation  and maintenance  training
materials and support.  Ground  operators  receive fixed fees for  installation,
maintenance  and other  services,  which vary depending on the level of services
and the geographic area.  Certain ground operators receive payments for customer
support over the life of the related customer contract,  based upon the revenues
derived. Two Limited Partner ground operators are entitled to receive additional
fees under a profit  sharing  formula,  but no amounts have been paid under such
formula  to  date  and  Orion  expects  that,   unless  such  Limited   Partners
significantly  increase the number of VSATs they maintain on behalf of Orion for
Orion's  customers,  profit  sharing  payments  will  not be  material.  Orion's
operations will continue to depend  significantly on Orion being able to provide
ground  operations  for  private  network  services  using  representatives  and
distributors  throughout the footprint of Orion's satellites.  In the event that
its network of ground  operators is not  maintained  and  expanded,  or fails to
perform as expected,  Orion's ability to offer private network  services will be
impaired.  See "Risk  Factors  --Risks  Relating  to Orion's  Business  -- Risks
Relating to Potential Lack of Market Acceptance and Demand;  Ground Operations."
    
                                       89
<PAGE>
   Set forth below is a map showing the locations of Orion's  existing  European
ground operators and potential new ground operators.

[Document  contains a map of Europe  indicating where Orion has ground operators
and where Orion is negotiating the hiring of additional ground operators]

MIGRATION PLAN FOR NEW MARKETS

   Prior  to the  launch  of  Orion  1,  the  Company  began  providing  private
communications network services to customers over satellite capacity leased from
others.  This early market entry strategy is being extended to Latin America and
Asia with the execution of the Orion 2 Satellite  Contract and  commencement  of
construction  of  Orion 3 in  December  1996.  By  developing  an  early  market
presence, Orion builds its customer base, establishes  relationships with ground
operators  and becomes  familiar with the  regulations  and practices in its new
markets  prior to launch of its  satellites.  Upon the  launch of Orion 1, Orion
migrated its customer base to its own satellite, and Orion expects to pursue the
same approach for Orion 2 and Orion 3.

   In Latin America,  the Company has a relationship  with a ground  operator in
Mexico and is currently  providing service to customers in Mexico,  Colombia and
Paraguay over leased  capacity.  The Company intends to migrate such services to
Orion 2 after it commences operations,  as Orion did with its Orion 1 satellite.
The Company has three U.S.  based direct sales  personnel  focused on selling in
Latin  America,  and is  pursuing  relationships  with  other  potential  ground
operators and joint venture partners.
                                       90
<PAGE>
   In  Asia,  the  Company  has  assigned  two full  time  personnel  to  pursue
arrangements with potential ground operators and joint venture partners, and has
commenced  discussions with such entities in a number of Asian countries.  Orion
has  begun  the  process  of  identifying  potential  sales  representatives  in
countries within the Orion 3 footprint.  The Company has also begun  discussions
with  existing  customers who have  operations  within the Orion 3 footprint and
have  expressed an interest in  procuring  Orion's  services in Asia.  Orion has
started to identify other potential multinational and Asia-based customers,  and
plans to open a regional  office in Asia in the second half of 1997. The Company
expects  its  marketing  for  Orion  3  will  be  assisted  by the  $89  million
pre-construction  lease by DACOM, a Korean  communications  company, of eight of
Orion 3's transponders for direct-to-home  service and other satellite services.
See  "--   Implementation   of  the  Orion  Satellite   System  --  Orion  3  --
Pre-Construction Customer."

IMPLEMENTATION OF THE ORION SATELLITE SYSTEM

   Orion currently provides its services with Orion 1 and with facilities leased
from  other  providers   covering  areas  outside  the  satellite's   footprint.
Ultimately  the Company  will  provide  these  services  with three  satellites,
together with  facilities  leased  outside of its  footprints.  Orion 1 provides
coverage of the Northern  Atlantic  Ocean region.  Orion 2 is being  designed to
cover the Atlantic  Ocean region but with coverage of points  further East (into
the  Commonwealth  of  Independent  States) and South  (into  Latin  America and
Africa), and Orion 3 is being designed to cover the Asia Pacific region.

   The design,  construction,  launch and in-orbit  delivery of a satellite is a
long and capital-intensive  process.  Satellites comparable to Orion's typically
cost in excess of $200 million  (exclusive of  development,  financing and other
costs)  and take two to three  years to  construct,  launch  and place in orbit.
Prior to  launch,  the owner  generally  must  obtain a number of  licenses  and
approvals,  including approval of the host country's national telecommunications
authorities to construct and launch the satellite, coordination and registration
of an orbital  slot (of which  there are a limited  number)  through  the ITU to
avoid  interference  with other  communications  systems and a  consultation  on
interference  with INTELSAT  (and EUTELSAT in the case of European  satellites).
Obtaining the necessary consents can involve  significant time and expense,  and
in the case of the  United  States,  requires  a showing  that the owner has the
financial  ability to fund the  construction  and launch of the satellite and to
operate  for one year.  The Company has  commenced  construction  of Orion 3 and
plans to  commence  construction  of Orion 2 prior to receipt of all  regulatory
approvals.  Failure  to  obtain  such  approvals  prior to launch  would  have a
material  adverse effect on the Company.  See "Risk Factors -- Risks Relating to
Orion's Business -- Approvals  Needed;  Regulation of Industry" and "Regulation"
below.

   
   Orion 1 is  expected to have an in-orbit  useful life of  approximately  10.7
years, estimated to end in October 2005, and Orion 2 and Orion 3 are expected to
have in-orbit  useful lives of 13 years and 15 years,  respectively  (based upon
present  design).  While there can be no assurances that adequate  financing and
regulatory  approvals  will be  obtained,  Orion  plans  to  launch  replacement
satellites as its satellites reach the end of their useful lives.

_ORION 1
    

   Orion 1 was launched in November 1994 and commenced commercial  operations in
January 1995.

   
   Satellite Design and Footprint.  Orion 1, which is in geosynchronous orbit at
37.5|SD West  longitude,  is a high power Ku-band  telecommunications  satellite
that contains 28 transponders of 54 MHz bandwidth and six transponders of 36 MHz
bandwidth  (although  one of these  transponders  has not operated in accordance
with  specifications,  as described  below).  The  footprint of Orion 1 is shown
below  (although  certain  transponders  of Orion 1 can be reconfigured to match
changing business and telecommunications requirements).
    
                                       91
<PAGE>
                                     [MAP]

   Satellite  Construction  and  Performance.  Orion 1 was  constructed by Matra
Marconi Space's subsidiary MMS Space Systems Limited, one of the major satellite
contractors in Europe.  Orion 1 was designed both for the delivery of high-speed
data and for  high-powered  digital video  transmission  to corporate  users. In
particular, Orion 1 was designed with high reception sensitivity,  which enables
two-way  transmission  from and to small earth stations,  reducing the equipment
and  transmission  cost  to  customers.  Orion  1 has  transatlantic  networking
capability, which allows users to uplink data in the U.S. or Europe and downlink
that transmission simultaneously to the U.S. and Europe.

   This configuration  simplifies customers' transatlantic networking solutions.
Orion  believes  that  Orion 1's  Ku-band  technology  and VSAT  ground  segment
infrastructure  is among the least  expensive,  most flexible  technologies  for
interactive  satellite  transmissions  in the North Atlantic  market.  Like most
recent satellites, Orion 1 offers digitally compressed transmission, in addition
to analog transmission, which allows the satellite to increase by up to ten fold
its usable bandwidth per transponder, leading to greater revenue per transponder
and greater network availability to customers in need of bandwidth on demand.

   When Orion 1 was delivered into orbit,  one of the 36 MHz  transponders  with
coverage  of the United  States  did not  perform in  accordance  with  contract
specifications.  Orion settled the matter with the  manufacturer  for a one time
refund of $2.75  million  (which  amount was applied as a  mandatory  prepayment
under the existing Orion 1 Credit Facility).  In addition, the manufacturer will
pay Orion approximately $7,000 per month for the life of the satellite under the
warranty to the extent the  transponder is not used to generate  revenue.  Orion
believes  that the failure of such  transponder  to perform in  accordance  with
specifications  will not have a significant  impact on Orion's  ability to offer
its services.

   In November 1995, one of Orion 1's components supporting nine transponders of
dedicated  capacity  serving  the  European  portion  of the Orion 1  footprint,
experienced  an anomaly  that  resulted  in a  temporary  service  interruption,
lasting  approximately  two hours.  Full service to all affected  customers  was
restored using  redundant  equipment on the satellite.  The redundant  equipment
currently generates a majority of Orion's revenues. Orion believes, based on the
data  received  to date by  Orion  from  its own  investigations  and  from  the
manufacturer,  and  based  upon  advice  from  Orion's  independent  engineering
consultant,  Telesat Canada, that because the redundant component is functioning
fully in accordance with  specifications  and the performance  record of similar
components is strong,  the anomalous behavior is unlikely to affect the expected
performance of the satellite over its useful life.  Furthermore,  there has been
no effect on Orion's ability to provide services to customers.  However,  in the
event that the 
                                       92
<PAGE>
redundant component fails, Orion 1 would experience a significant loss of usable
capacity.  In such event, while Orion would be entitled to insurance proceeds of
approximately $47 million and could lease replacement capacity and function as a
reseller with respect to such capacity (at substantially reduced gross margins),
the loss of capacity would have a material  adverse  effect on Orion.  See "Risk
Factors -- Risks  Relating  to Orion's  Business -- Risks of  Satellite  Loss or
Reduced Performance."

   
   Control of Satellite. Orion uses its tracking, telemetry and command facility
in Mt.  Jackson,  Virginia (the "TT&C  facility") to control Orion 1, and has in
place backup facilities at its headquarters in Rockville, Maryland. In addition,
Orion has a  satellite  control  center at Orion's  headquarters  in  Rockville,
Maryland,  from  which  commands  can be sent  to the  satellite,  directly,  or
remotely  through  the TT&C  facility.  Orion  also has  constructed  a  network
management  center at its headquarters to monitor the performance of Orion 1 and
to  perform  diagnostic  procedures  on and to  reconfigure  its  communications
networks.  Orion leases  additional  facilities  in Europe for backup  tracking,
telemetry and command and network monitoring functions.

_ORION 2

   Schedule and Footprint. Orion intends to launch Orion 2 in the Atlantic Ocean
region to bolster its European  capacity and to expand its coverage  area in the
Commonwealth of Independent States,  Latin America and parts of Africa.  Orion 2
will  be a high  power  Ku-band  communications  satellite  which  will  contain
approximately   30  transponders  of  54  MHz  bandwidth.   Orion  has  obtained
conditional  authori  zation  from the FCC for the  orbital  slot at 12|SD  West
longitude  for  operation  of Orion 2. The FCC has  commenced  the  coordination
process  through  the ITU and will  commence  consultation  with  INTELSAT  upon
request from Orion.  Orion currently  plans to commence  construction of Orion 2
immediately  after  completion  of the  Offering  and launch Orion 2 late in the
second quarter of 1999. See "-- Satellite Construction,  Launch and Performance"
and "Risk Factors -- Risks Relating to Orion's Business -- Launch of Orion 2 and
Orion 3 Subject to Significant Uncertainties."

                                 [INSERT MAP]
    
                                       93
<PAGE>
   Satellite Construction,  Launch and Performance.  Matra Marconi Space and MMS
Space  Systems  are the  prime  contractors  for  Orion 2 and will use MMS Space
Systems' EUROSTAR  satellite  platform for Orion 2. This platform was previously
used for Inmarsat 2, Telecom 2, Hispasat and Orion 1.  Lockheed  Martin CLS will
provide launch services for Orion 2 using the Atlas II A-S launch vehicle. Atlas
II A-S,  which is larger than the launch vehicle used for the launch of Orion 1,
is an  expanded  version  of Atlas  II.  All 26 of the Atlas II, II A and II A-S
launches have been successful. There have been more than 500 Atlas flights since
the first  research and  development  launch in 1957.  For a  discussion  of the
Company's  financing  needs with  respect  to Orion 2, and  related  risks,  see
"Management's  Discussion  and  Analysis of Financial  Condition  and Results of
Operations  --  Liquidity  and  Capital  Resources"  and "Risk  Factors -- Risks
Relating  to  Orion's  Business  -- Launch  of Orion 2 and  Orion 3  Subject  to
Significant Uncertainties -- Substantial Financing Requirements."

   The Orion 2  satellite  will be tested  extensively  prior to  launch.  Matra
Marconi  Space is  obligated  to correct  all  defects in the  satellite  or its
components  discovered prior to the launch.  If Orion 2 is launched but fails to
meet the specified  performance criteria following launch, or fails to arrive at
its designated  orbit within 180 days of launch,  or is completely  destroyed or
incapable of operation, Orion 2 will be deemed a "constructive total loss." Upon
a constructive total loss of Orion 2, Orion would generally be entitled to order
from Matra Marconi Space a replacement satellite on substantially the same terms
and  conditions  as set  forth in the Orion 2  Satellite  Contract,  subject  to
certain pricing  adjustments.  If Orion 2 is  substantially  able to perform but
fails to meet  certain  criteria for full  acceptance,  Orion 2 will be deemed a
"partial  loss."  Upon a partial  loss of Orion 2, Orion  would be  entitled  to
receive  a  partial  refund  based  on  calculations  of Orion  2's  performance
capabilities.  If Orion 2 is not a constructive  total loss or partial loss, but
does not meet the specified performance  requirements at final acceptance or for
five years  thereafter,  Matra  Marconi  Space may be required  to make  certain
refund payments to Orion up to a maximum of approximately  $10 million.  Orion's
principal  remedy in the case of a constructive  total loss or partial loss will
be under the launch  insurance the Company is to obtain. A total or partial loss
will involve delays and loss of revenue,  which will impair  Orion's  ability to
service its  indebtedness,  and such  insurance  will not protect  Orion against
business  interruption,  loss or delay of revenues or similar losses and may not
fully  reimburse the Company for its  expenditures.  See  "Insurance"  below and
"Risk Factors -- Risks  Relating to Orion's  Business -- Risks of Satellite Loss
or Reduced Performance -- Limited Insurance for Satellite Launch and Operation."

   
   The Orion 2 Satellite  Contract provides for incentive  payments to encourage
early  delivery  and  limited  liquidated  damages  payable in the event of late
delivery.  The incentive  payments would equal $25,000 per day for each day that
Orion 2 is delivered prior to the scheduled delivery date. Liquidated damages in
the event of a late  delivery  of Orion 2 also  would be  calculated  on a daily
basis, with the aggregate amount not to exceed approximately $12 million.  These
liquidated damages would be Orion's exclusive remedy for late delivery. 
    

   Control of Satellite. Orion expects to use the TT&C facility to control Orion
2, and to use its existing network monitoring facilities in Rockville,  Maryland
and backup facilities in Europe.

   
   There can be no  assurance  that Orion 2 will be launched  successfully.  See
"Risk  Factors -- Risks  Relating  to Orion's  Business -- Launch of Orion 2 and
Orion 3 Subject to Significant Uncertainties."

_ORION 3
    

   Schedule and  Footprint.  Orion intends to launch Orion 3 in the Asia Pacific
region.  Orion 3 is expected to cover all or  portions of China,  Japan,  Korea,
India, Hawaii, Southeast Asia, Australia, New Zealand, and Eastern Russia. Orion
3 is  expected  to be a  high-power  satellite  with  23 54 MHz  and  two 27 MHz
equivalent Ku-band transponders, 10 36 MHz C-band transponders for use by Orion,
and eight Ku-band transponders to be used by DACOM, a large Asian customer,  for
direct-to-home  television services and other satellite services. Orion, through
the Republic of the Marshall Islands, has filed the appropriate documentation to
begin the ITU process to  coordinate  an orbital slot at 139|SD East  longitude.
Orion has not commenced the  consultation  process with INTELSAT with respect to
such orbital slot.  Orion  commenced  construction  of Orion 3 in December 1996.
Orion 3 is scheduled to be launched in
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the fourth  quarter of 1998.  See "Risk  Factors  -- Risks  Relating  to Orion's
Business -- Launch of Orion 2 and Orion 3 Subject to Significant Uncertainties."

   
   For a  discussion  of Orion's  financing  needs with  respect to Orion 3, see
"Management's  Discussion  and  Analysis of Financial  Condition  and Results of
Operations  of Orion -- Liquidity  and Capital  Resources"  and "Risk Factors --
Risks Relating to Orion's Business -- Need for Substantial  Additional  Capital"
and "-- Launch of Orion 2 and Orion 3 Subject to  Significant  Uncertainties  --
Substantial Financing Requirements." 
    

   The proposed coverage of Orion 3 is shown below.

                                     [MAP]

   
   Pre-Construction  Customer.  Orion has  entered  into a  contract  with DACOM
Corp., a Korean  communications  company which provides  international  and long
distance  telephone and leased line  services,  international  and domestic data
communications and value added network services.  Under the contract, DACOM will
lease eight dedicated  transponders  on Orion 3 for 13 years for  direct-to-home
television   service  and   satellite   services,   in  return  for  payment  of
approximately $89 million payable over a period from December 1996 through seven
months following the lease commencement date for the transponders. DACOM has the
right to terminate  the  contract  before March 1997 (and Orion would retain the
$10 million paid) if it fails to obtain certain approvals.  Payments are subject
to refund if the successful  launch and commencement of commercial  operation of
Orion 3 has not occurred by June 30, 1999.  
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Although  Orion 3 is  scheduled  to be launched  in the fourth  quarter of 1998,
there can be no assurance that Orion will meet the delivery requirements of this
contract.  See "Risk Factors -- Risks Relating to Orion's  Business -- Launch of
Orion  2  and  Orion  3  Subject   to   Significant   Uncertainties   --  Timing
Uncertainties."  As part of the arrangements  with DACOM,  Orion granted DACOM a
warrant to purchase 50,000 shares of Orion Common Stock at $14 per share. 
    

   Satellite  Construction,  Launch and  Performance.  Orion has selected Hughes
Space as the prime  contractor for Orion 3 and will use a Hughes Space HS 601 HP
satellite  platform  for Orion 3. Launch  services  for Orion 3 will be provided
using the McDonnell Douglas Delta III launch vehicle. Delta III, which is larger
than the launch  vehicle used for the launch of Orion 1, is an expanded  version
of the  Delta II launch  vehicle  which has had 53  successful  launches  with a
failure rate of less than 2%. There have been no Delta III flights to date,  and
the  Company  expects  its launch to be the third  Delta III  flight  based upon
information  provided by the launch vehicle  manufacturer  regarding its present
flight schedules. For a discussion of the Company's financing needs with respect
to Orion 3, and related  risks,  see  "Management's  Discussion  and Analysis of
Financial Condition and Results of Operations -- Liquidity" and "Risk Factors --
Risks  Relating to Orion's  Business -- Launch of Orion 2 and Orion 3 Subject to
Significant Uncertainties -- Substantial Financing Requirements."

   Under the proposed Orion 3 Satellite Contract,  the Orion 3 satellite will be
tested  extensively  prior to launch.  Hughes  Space is obligated to correct all
defects in the satellite or its components  discovered prior to the launch.  The
risk of loss or damage to Orion 3 passes from Hughes  Space to Orion at the time
of  intentional  ignition of Orion 3. After  Orion 3 is  launched  and meets the
specified  performance  criteria  following launch,  and has not suffered damage
caused by any failure or  malfunction  of the launch  vehicle,  Hughes  Space is
required  to  perform  in-orbit  testing  of Orion 3 to  determine  whether  the
transponders meet the specified  performance  criteria. If the transponders meet
the specified performance criteria,  Hughes Space is entitled to retain the full
satellite  performance  payments  described  below.  See  "Insurance"  and "Risk
Factors -- Risks  Relating  to Orion's  Business --  Satellite  Risks -- Limited
Insurance for Satellite Launch and Operation."

   
   Orion has an option to purchase an additional satellite (which may be used as
a  replacement  satellite)  to be  launched  within 12 to 19 months  after Orion
exercises  such option.  Orion must pay a fee if it exercises  this option;  the
size of the fee will depend on whether the  additional  satellite is required to
be  delivered  in 12, 15 or 19 months.  Hughes Space is obligated to furnish the
replacement  satellite on terms substantially  similar to those contained in the
Orion 3 Satellite Contract. 
    

   
   The Orion 3 Satellite  Contract provides for incentive  payments to encourage
satellite  performance  and limited  liquidated  damages payable in the event of
late delivery.  The incentive  payments could total $18 million depending on the
satellite's  performance,  of which $10 million could be payable upon acceptance
of the Orion 3  satellite  and $8  million  is  payable  over the  course of the
satellite's  operational lifetime. In the event that it is determined during the
Orion 3's operational lifetime that a transponder is not successfully operating,
Orion is  entitled  to  receive  payment  refunds  under the  Orion 3  Satellite
Contract.  Liquidated  damages in the event of a late  delivery  of Orion 3 also
would be  calculated on a daily basis,  with the aggregate  amount not to exceed
approximately $6 million.  These liquidated  damages would be Orion's  exclusive
remedy for late delivery.
    

   Control of  Satellite.  Orion  expects  to lease a  tracking,  telemetry  and
command facility in Asia to control Orion 3 and to maintain backup facilities in
Korea, pursuant to arrangements with DACOM.

   
   There can be no  assurance  that Orion 3 will be launched  successfully.  See
"Risk  Factors -- Risks  Related to  Orion's  Business  -- Launch of Orion 2 and
Orion 3 Subject to Significant Uncertainties."

_ORBITAL SLOTS

   Orion  1.  Orion  has  been  licensed  by  the  FCC  and  has  completed  the
coordination  process with INTELSAT to operate Orion 1 in geostationary orbit at
37.5oSD West longitude.

   Orion 2. Orion has obtained  conditional  authorization  from the FCC for the
construction,  launch and operation of Orion 2 at 12o West longitude.  On behalf
of Orion,  the FCC has commenced the orbital slot  coordination  process through
the ITU.  Orion believes that its use of the 12o West longitude
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slot for Orion 2 is not likely to interfere with proposed uses of adjacent slots
filed for by other governments, except for a possible overlap of 75 MHz with one
such filing as discussed more fully below under the caption "-- ITU Coordination
Process." Orion will consult with INTELSAT  regarding Orion 2, and believes that
since  there are no  INTELSAT  satellites  located  adjacent  to the 12|SD  West
longitude  orbital  slot,  the INTELSAT  coordination  should be obtained in due
course.

   Orion 3. Orion,  through the Republic of the Marshall Islands,  has filed the
appropriate documentation with the ITU to begin the ITU coordination process for
Orion 3 at 139|SD East longitude.  Based upon the time of filing by the Republic
of the Marshall Islands, Orion believes that the proposed orbital slot for Orion
3 would have effective  priority under ITU procedures with respect to the 139|SD
East  longitude  orbital slot,  but some  proposals for adjacent  slots would be
entitled to priority  over the Company's  proposal  (through the Republic of the
Marshall Islands) with respect to possible interference.  Orion believes,  based
upon its  monitoring  of the other  proposals  and  information  in the industry
regarding their progress, that none of the entities with effective priority over
the Company's  proposal  (through the Republic of the Marshall  Islands) will be
able to launch a satellite  prior to launch of Orion 3 to take advantage of such
priority.  Orion has not commenced the  consultation  process with INTELSAT with
respect  to  Orion 3, but as in the case of  Orion 2  expects  to  complete  the
INTELSAT coordination in due course.

   Other Orbital Slots.  Orion has received an authorization  from the FCC for a
Ku-band  satellite  in  geostationary  orbit at 47|SD  West  longitude,  and has
coordinated  this  orbital  position  with  INTELSAT.  Orion  has also  filed an
application  with the FCC to operate a satellite at 126|SD East  longitude.  The
FCC has filed  documentation  with the ITU to commence the coordination  process
for this slot. In May 1996, in response to Orion's application, the FCC assigned
the U.S.  domestic  orbital  location  of 135|SD  West  longitude  to Orion.  In
November  1996,  the FCC  granted  authorization  to Orion to utilize  the slot,
conditioned  on  Orion  submitting  financial  qualification   information,   or
documentation justifying a waiver of the financial requirements, within 120 days
after the release of the individual  order with respect to Orion's  application.
Orion  presently  intends  to  seek a  waiver  with  respect  to  this  120  day
requirement,  but believes  failure to obtain a waiver would not have a material
affect  on Orion or its  business.  Such 120 day  requirement  does not apply to
authorization  previously granted to Orion, such as for the 12|SD West longitude
orbital slot proposed to be used for Orion 2.
    

   In September  1995,  Orion filed  applications  for  authority to  construct,
launch and operate Ka-band  satellites at 78.0|SD East  longitude,  93.0|SD West
longitude,  and  83.0|SD  West  longitude,  and  an  amendment  to  its  pending
application to construct,  launch and operate a Ku-band satellite at 127|SD West
longitude to add a Ka-band payload.  In addition,  Orion filed an application to
modify its  authority to  construct,  launch and operate a Ku-band  satellite at
47|SD West longitude to include a North/South beam configuration. On November 9,
1995, Orion filed an application for authority to construct,  launch and operate
a Ka-band  satellite  at 12|SD West  longitude.  In May 1996,  the FCC  assigned
Ka-band  orbital  locations  for 33 U.S.  companies  for  international  orbital
locations,  including two assigned to Orion at 78|SD East longitude and 126.5|SD
East longitude,  and one at 47|SD West longitude.  This orbital  assignment plan
was  conditioned  upon  authorization  of the  domestic  portion of the proposed
satellite  systems.  At approximately the same time the FCC made ITU filings for
these satellites.  The FCC order does not license these satellites,  and some of
the  applications  to use the  orbital  assignments  are  subject to further FCC
processing.  There are ongoing  negotiations  among the applicants  concerning a
consensual Ka-band orbital assignment plan to be submitted to the FCC to resolve
a number of mutually  exclusive orbital assignment  requests,  including Orion's
pending Ka-band  application for 93.0|SD West longitude,  83.0|SD West longitude
and 127|SD West longitude.  The FCC has indicated that if a consensus  cannot be
reached by the applicants,  the FCC will itself resolve these orbital  conflicts
in the  processing  of  these  applications,  and  such  processing  will  be in
conformity  with  yet-to-be  adopted  Ka-band  service  rules.  There  can be no
assurance  that Orion will receive  final  licenses to operate at these  orbital
positions,  or that  the FCC will  act  favorably  on  Orion's  other  satellite
filings.

   ITU Coordination  Process. An international  treaty to which the U.S. and the
Republic of the Marshall Islands are parties requires  coordination of satellite
orbital slots through the procedures of the ITU. There are only a limited number
of such  orbital  slots.  ITU  procedures  provide  for a priority  to attach to
proposals that are submitted first for a particular  orbital slot and associated
frequencies,  and 
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provide for protection from  interference by satellites in adjacent slots.  This
priority does not establish legally-binding rights, but at a minimum establishes
certain procedural rights and obligations for and with respect to the party that
first submits its proposal.

   Over  the  past  decade,  a  substantial   increase  in  satellite  proposals
introduced into the ITU coordination  process has caused delays in that process.
In  addition,  many  proposals  are  submitted  to the ITU for  registration  of
satellite systems that ultimately are not constructed or launched.  As a result,
the ITU is  investigating  ways to improve or streamline  the filing process for
registration  of orbital  slots.  In the meantime,  it has become  international
practice for operators who propose to use a certain  orbital slot to investigate
and evaluate  whether  proposals to launch  satellites into the same or a nearby
orbital location are likely to result in actual operation,  and for operators to
negotiate  with other  countries or operators  that propose to use the same or a
nearby  orbital  location.  There  can be no  assurance  of the  outcome  of any
objections  to this  international  practice  or as to the  results of the ITU's
investigations.

   Orion is involved in discussions  with certain  governments  concerning their
proposals to use orbital slots.  While Orion  believes that it can  successfully
coordinate  and  resolve  any  interference  concerns  regarding  the use of the
orbital  locations and frequency  bands  proposed for Orion 2 and Orion 3, there
can be no assurance that this will be achieved,  nor can there be assurance that
ITU coordination will be completed by the scheduled launch dates for Orion 2 and
Orion 3.

   
   In the event that successful coordination cannot be achieved,  Orion may have
to modify the  satellite  design for Orion 2 or Orion 3 in order to minimize the
extent of any potential  interference with other proposed satellites using those
orbital  locations  or frequency  bands.  Any such  modifications  may result in
certain  features of Orion 2 and Orion 3 differing from those  described in this
Prospectus and may result in limitations on the use of one or more  transponders
on Orion 2 or Orion 3 or delays in the launch of Orion 2 or Orion 3. In order to
achieve successful coordination,  Orion may also have to modify the operation of
the satellites,  or enter into commercial  arrangements  with operators of other
satellites,  in  order  to  protect  against  harmful  interference  to  Orion's
operations.  If interference  occurs with satellites that are in close proximity
to Orion 2 and Orion 3, or with satellites that are  subsequently  launched into
locations in close proximity  without  completing ITU  coordination  procedures,
such  interference  would  have an  adverse  effect on the  proposed  use of the
satellites and on Orion's business and financial performance.  See "Risk Factors
- -- Risks  Relating  to Orion's  Business  --  Approvals  Needed;  Regulation  of
Industry."

_INSURANCE
    

   Orion has obtained satellite in-orbit life insurance for Orion 1 covering the
period  from May 1996 to May 1997 in an  initial  amount of  approximately  $245
million  providing  protection  against partial or total loss of the satellite's
communications capability,  including loss of transponders,  power or ability to
control the  positioning  of the satellite.  The aggregate  premium for in-orbit
insurance for Orion 1 is approximately $6 million per annum.

   Orion intends to procure launch  insurance for the  construction,  launch and
insurance costs of Orion 2 and Orion 3. In the past,  satellite launch insurance
was generally procured  approximately six months prior to launch.  Recently,  it
has become  possible to obtain a commitment  from  insurance  underwriters  well
before that time,  which fixes the rate and certain  terms of launch  insurance.
Orion intends shortly to seek such a commitment  from insurance  underwriters to
provide launch  insurance for Orion 2 and Orion 3. Such insurance is expected to
be quite  costly,  with present  insurance  rates ranging at or above 16% of the
insured  amount,  depending  upon such factors as the launch  history and recent
performance of the launch vehicle to be used and general  availability of launch
insurance in the insurance  marketplace (although such rates have reached 20% or
higher in the past several  years).  Such  insurance  can be expected to include
certain contract terms,  exclusions,  deductibles and material change conditions
that are  customary  in the  industry.  After launch of Orion 2 and Orion 3, the
Company will need to procure  satellite  in-orbit life insurance for Orion 2 and
Orion 3. There can be no assurance that such insurance will be available or that
the price of such insurance or the terms and exclusions in the actual  insurance
policies will be favorable to the Company. Launch and in-orbit insurance for its
satellites will not protect the Company against business  interruption,  loss or
delay of revenues and similar 
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losses  and  may  not  fully   reimburse  the  Company  for  its   expenditures.
Accordingly,  an  unsuccessful  launch of Orion 2 or Orion 3 or any  significant
loss of performance  with respect to any of its satellites would have a material
adverse  effect  on Orion  and would  impair  Orion's  ability  to  service  its
indebtedness,  including  the  Notes.  See "Risk  Factors -- Risks  Relating  to
Orion's  Business -- Risks of Satellite  Loss or Reduced  Performance -- Limited
Insurance for Satellite Launch and Operation."

COMPETITION

   As a  provider  of  data  networking  and  Internet-related  services,  Orion
competes  with a  large  number  of  telecommunications  service  providers  and
value-added  resellers  of  transmission  capacity.  As a provider of  satellite
transmission  capacity,  Orion  competes  with other  providers of satellite and
terrestrial facilities.

   
   Many of these competitors have significant competitive advantages,  including
long-standing  customer  relationships,  close  ties with  regulatory  and local
authorities,  control  over  connections  to local  telephone  networks and have
financial  resources,  experience,  marketing  capabilities and name recognition
that are  substantially  greater than those of Orion.  The Company believes that
competition in emerging  markets will intensify as incumbent  service  providers
adapt to a competitive  environment and  international  carriers  increase their
presence in these  markets.  The Company also believes that  competition in more
developed markets will intensify as larger carriers  consolidate,  enhance their
international  alliances and increase  their focus on data  networking.  Orion's
ability  to  compete  with these  organizations  will  depend in part on Orion's
ability to price its services at a significant  discount to terrestrial  service
providers,  its  marketing  effectiveness,  its level of  customer  support  and
service and the technical advantages of its systems.

_SERVICE PROVIDERS

   Orion has encountered strong competition from major established carriers such
as AT&T, MCI,  Sprint,  British  Telecom,  Cable & Wireless,  Deutsche  Telekom,
France Telecom and Kokusai Denshin Denwa, which provide international telephone,
private  line and  private  network  services  using  their  national  telephone
networks and link to those of other  carriers.  A number of these  carriers have
formed
global  consortia  to  provide  private  network  services,  including  AT&T  --
Unisource Services Company (AT&T, PTT Telecom Netherlands, Telia (Sweden), Swiss
Telecom PTT and  Telefonica of Spain),  Concert  (British  Telecom and MCI), and
Global  One  (Sprint,  France  Telecom  and  Deutsche  Telekom).  Other  service
providers  include MFS Worldcom (which acquired IDB  Communications  Group, Inc.
and  Wiltel  International,   Inc.),  Infonet,  SITA,  Telemedia  International,
Spaceline,  ANT Bosch (which is being  acquired by General  Electric),  Teleport
Europe,  Impsat,  and various local  resellers of satellite  capacity.  Finally,
service organizations that purchase satellite capacity,  VSAT and other hardware
and install their own networks may be considered competitors of the Company with
respect to their own networks. Although these carriers and service providers are
competitors,  some are also Orion's  customers.  Orion believes that all network
service  providers are  potential  users of Orion's  satellite  capacity for the
network services they offer their customers. See "Risk Factors -- Risks Relating
to Orion's Business -- Potential Adverse Effects of Competition."

_SATELLITE CAPACITY
    

   Orion  provides fixed  satellite  service and does not intend to compete with
proposed  mobile   satellites  or  low  earth  orbit  systems  ("LEO")  such  as
Globalstar, Iridium or Odyssey (although the Company does expect to compete with
Teledesic,  a proposed LEO  system),  or, with the  exception of the  pre-leased
transponders on Orion 3 to be used for video transmissions,  with direct-to-home
satellite  systems such as  Primestar,  DirectTV or EchoStar.  Mobile  satellite
services are  characterized  by voice and data  transmission  to and from mobile
terminals on platforms  such as ships or aircraft.  Direct-to-home  services are
characterized  by the  transmission  of television  and  entertainment  services
directly to consumers. Orion's satellites will compete with trans-Atlantic fixed
satellite systems, European regional and domestic systems and Asian systems.
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   Existing  International and Trans-Atlantic  Satellite Systems. The market for
international  fixed  satellite  communications  capacity has been  dominated by
INTELSAT for thirty years,  and INTELSAT can be expected to continue to dominate
this market for the foreseeable future.  INTELSAT, a consortium of approximately
140 countries established by international treaty in 1964, owns and operates the
largest  fleet  of  commercial   geosynchronous  satellites  in  the  world  (25
satellites,  with additional  satellites on order).  INTELSAT's  satellites have
historically  been general  purpose,  lower-power  satellites  designed to serve
large areas with public telephone service  transmitted between expensive gateway
earth stations. INTELSAT generally provides capacity directly to its signatories
who then  market such  capacity  to their  customers.  The  availability  of new
services generally is subject to the discretion of each country's  signatory and
INTELSAT is required  under its charter to set its pricing in order to achieve a
fixed  pre-tax  return  on  equity  that  is  established  from  time to time by
INTELSAT's board of governors. INTELSAT is considering a restructuring and it is
expected  that the Intelsat  Assembly of Parties will decide on a new  structure
for the  organization in 1997. Any  restructuring of INTELSAT that increases its
marketing  flexibility could materially impact Orion's ability to compete in the
market for private satellite delivered services.     

   PanAmSat  currently  operates four satellites,  with one satellite  providing
coverage in each of the  Atlantic  Ocean  region,  the Asia  Pacific  region and
Indian Ocean region (the fourth covers the Atlantic Ocean region but is near the
end of  its  useful  life).  These  satellites  primarily  provide  broadcasting
services,  such  as  television  programming  and  backhaul  operations.  PAS 3,
launched in January 1996, with coverage of the Atlantic Ocean, competes directly
with Orion 1. It has performance  attributes  which are generally  comparable to
those of Orion 1 and carries 16 Ku-band  transponders,  of which 8  transponders
are  capable  of  providing   service  to  or  within  Europe,   and  16  C-band
transponders.  PanAmSat has announced that it intends to launch four  additional
satellites,  two in 1997 that will provide coverage of the U.S., Central America
and Mexico,  and two that will provide  coverage of the Indian and Pacific Ocean
regions,  respectively,  in 1997 and early  1998.  PanAmSat is in the process of
selling a controlling interest to Hughes Electronics Corp., which is the largest
private  space-related  company  in the world.  This  transaction  will  enhance
PanAmSat's ability to compete with Orion.

   Existing European Regional and Domestic Satellite Systems.  In Europe,  Orion
competes with certain regional  satellites systems and may compete with domestic
satellite  systems.  Regional  and domestic  satellite  systems  generally  have
limited  ability  to serve  customers  with  needs for  extensive  international
networks.  Orion's primary  competitor in Europe is the major regional satellite
system operated by EUTELSAT. EUTELSAT,  established in 1977, presently comprises
over  approximately 45 member  countries.  EUTELSAT  operates seven  satellites,
providing telephony,  television,  radio and data services,  and has announced a
plan to launch five new satellites through 1998.

   
   Asian   Pacific    Region    Satellite    Systems.    Orion   believes   that
currently-operating  satellite  systems in the Asia Pacific region generally are
limited in their ability to provide private  network and similar  services at an
acceptable performance level due to insufficient power, limited Ku-band capacity
and  limited  geographic  coverage.  Nevertheless,  there is a large  number  of
satellite systems  operating in Asia. The major Asia Pacific regional  satellite
systems include the AsiaSat system licensed in Hong Kong (with two satellites in
operation  and a third  planned for launch in 1997),  the Chinese  Apstar system
(also with two  satellites  in operation and a third planned for launch near the
end of 1997) and the  Indonesian  Palapa system (with three  satellites in orbit
and plans to launch at least  three more  satellites  through  1999).  Japan has
licensed  several  satellite  networks for domestic and  international  service,
including the JCSat series (three  satellites in operation and a fourth  planned
for  launch in 1997),  NTT's two  N-Star  satellites,  and Space  Communications
Corporation's  Superbird A and B (with a third planned for 1997). Optus operates
four Australian  domestic satellites that offer limited  international  coverage
and  plans  several  follow-on  satellites.  Korea  operates  Koreasat  1 and 2,
primarily  for domestic  service,  with plans for a third  satellite  that would
offer  expanded  regional  service in 1999.  Thailand  has  licensed the Thaicom
system, with two domestic satellites in operation,  and plans two new satellites
in  1997  offering  regional  coverage.   Measat  operates  a  Malaysian  system
consisting  of two  satellites  providing  DTH service to Malaysia  and parts of
Asia.

   Other Satellite  Systems.  There are numerous  satellites other than the ones
discussed above that compete to some extent with Orion. In addition, the Company
is aware of a substantial  number of satellites  that are in  construction or in
the planning stages. Most of these satellites will cover areas within
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the footprint of Orion 1 and/or the proposed  footprints of Orion 2 and Orion 3.
As these new  satellites  commence  operations,  they  (other  than  replacement
satellites   not   significantly   larger  than  the  ones  they  replace)  will
substantially increase the capacity available for sale in the company's markets.
After a satellite has been successfully delivered in orbit, the variable cost of
transmitting additional data via the satellite is limited. Accordingly, absent a
corresponding increase in demand, this new capacity can be expected to result in
significant  additional price  reductions.  For example,  Teledesic  Corporation
proposes  to  operate  up to 840 low earth  orbit  small  satellites  by 2001 to
provide global fixed satellite  services  (including  voice,  data and broadband
transmission  services).  Although  Orion cannot assess to what degree,  if any,
these  proposed  satellites  might  compete with Orion in the future,  Teledesic
could provide significant competition to the Company. See "Risk Factors -- Risks
Relating to Orion's Business -- Potential Adverse Effects of Competition."

_TERRESTRIAL CAPACITY
    

   Orion   competes   with   terrestrial   facilities   for   intra-Europe   and
trans-Atlantic capacity.

   European    Facilities.    Orion's    services   compete   with   terrestrial
telecommunications delivery services, which are being improved gradually through
the  build-out  of fiber  optic  networks  and a move  from  analog  to  digital
switching.   As  fiber  networks  and  digital  network  switching  become  more
prevalent,  the  resulting  improved  and less  expensive  terrestrial  capacity
increasingly competitive with Orion's services.

   Undersea   Cable.   Undersea   fiber  optic  cable   capacity  has  increased
substantially  in recent years.  Although  Orion  believes  that undersea  cable
capacity is not as well suited as satellite  capacity to serve the  requirements
of video  broadcasters or the demand for multi-point  private network  services,
fiber optic and coaxial  cables are well suited for  carrying  large  amounts of
bulk traffic,  such as long distance  telephone  calls,  between two  locations.
Operators of undersea  fiber optic cable systems  typically  are joint  ventures
among major telecommunications  companies. Orion expects strong competition from
these carriers in providing private network services.

    
REGULATION

_REGULATORY OVERVIEW
    

   The international  telecommunications  environment is highly regulated. As an
operator of privately  owned  international  satellite  systems  licensed by the
United States, Orion is subject to the regulatory authority of the United States
(primarily the FCC) and the national communications authorities of the countries
in which it provides  service.  Each of these  entities can  potentially  impose
operational restrictions on Orion. In addition, Orion is subject to the INTELSAT
and EUTELSAT  consultation  processes.  The changing policies and regulations of
the United States and other countries will continue to affect the  international
telecommunications  industry. Orion cannot predict the impact that these changes
will have on its  business or whether the general  deregulatory  trend in recent
years  will  continue.  Orion  believes  that  continued  deregulation  would be
beneficial to Orion, but deregulation  also could reduce the limitations  facing
many of its existing competitors and potential new competitors.

   
   The  operation  of Orion 2 and Orion 3 will  require  a number of  regulatory
approvals, including (i) the approvals of the FCC (in the case of Orion 2), (ii)
completion of successful  consultations  with INTELSAT and, in the case of Orion
2, with EUTELSAT;  (iii)  satellite  "landing"  rights in countries that are not
INTELSAT  signatories or that require additional  approvals to provide satellite
or VSAT services;  and (iv) other regulatory approvals.  Obtaining the necessary
licenses and approvals  involves  significant  time and expense,  and receipt of
such licenses and approvals cannot be assured.  Failure to obtain such approvals
would have a material  adverse effect on Orion and on its ability to service its
indebtedness  and the value of the Orion Newco Common Stock. In addition,  Orion
is required to obtain approvals from numerous  national local authorities in the
ordinary  course of its business in connection  with most  arrangements  for the
provision of services. Within Orion 1's footprint, such approvals generally have
not been difficult for Orion to obtain in a timely manner.  However, the failure
to obtain  particular  approvals has delayed,  and in the future may delay,  the
provision of services by Orion.  See "Risk Factors -- Risks  Relating to Orion's
Business -- Approvals Needed; Regulation of Industry."
    
                                      101
<PAGE>
   
_AUTHORITY TO CONSTRUCT, LAUNCH AND OPERATE SATELLITES
    

   Orion 1. In June 1991, Orion received final  authorization  from the FCC (the
"Orion 1  License")  to  construct,  launch and operate a Ku-band  satellite  in
geostationary  orbit at 37.5|SD  West  longitude in  accordance  with the terms,
conditions and technical specifications submitted in its application to the FCC.
The Orion 1 license from the FCC expires in January 2005.  Although Orion has no
reason  to  believe  that its  licenses  will not be  renewed  (or new  licenses
obtained) at the  expiration of the license  term,  there can be no assurance of
renewal.

   Orion 2. Orion has obtained  conditional  authorization  from the FCC for the
orbital  slot at 12|SD  West  longitude  for  operation  of Orion 2. The Orion 2
authorization  will not become final until Orion  completes a consultation  with
INTELSAT and demonstration to the FCC of its financial ability to meet the costs
of construction, the launch of its satellite and operating expenses for one year
following launch.  Orion has not yet met the required  financial  qualifications
demonstration  to the FCC. It is required  to make such  showing  within 90 days
after completion of INTELSAT  consultation,  and accordingly intends to commence
consultation  with INTELSAT  after it has obtained an  additional  financing and
believes it can make the required financial showing.  The application filed with
the FCC for Orion 2 contains a technical  proposal different than that currently
being coordinated with the ITU, and will need to be amended. Orion has no reason
to believe  that the FCC will not approve such  amendment or that the  amendment
will cause material delay in obtaining final FCC authority for Orion 2.

   Orion 3. Orion is pursuing an orbital slot at 139|SD East  longitude  through
the Republic of the Marshall  Islands.  Under an agreement  with the Republic of
the Marshall  Islands entered into in 1990, the Republic of the Marshall Islands
agreed to file with the ITU all documents necessary to secure  authorization for
Orion to operate a satellite in geo-stationary orbit. In return for the right to
utilize any orbital slots secured by the Republic of the Marshall Islands, Orion
must, among other things, (i) commence  construction of a functioning  operating
center for  satellites  serving  the  Pacific  Island  portion of the Orion Asia
Pacific  network at least a year prior to the  operation of an Orion  satellite,
(ii) train and  support  certain  employees  designated  by the  Republic of the
Marshall Islands at least a year prior to the operation of an Orion Asia Pacific
satellite,  and (iii)  construct,  equip and install (except for power supply or
back-up) four earth  stations  capable of handling a "T-1" circuit for operation
with the Orion  Asia  Pacific  system  prior to the  operation  of an Orion Asia
Pacific satellite.

   
_CONSULTATION WITH INTELSAT AND EUTELSAT
    

   Orion 1. Prior to receiving final licensing and launch authority for Orion 1,
Orion  successfully  completed its  consultation  with INTELSAT  pursuant to the
INTELSAT Treaty. A similar  consultation for Orion 1 was completed with EUTELSAT
in May  1994.  Additional  consultations  or other  approvals  may be  needed in
individual countries for the use of VSATs.

   Orion 2. Orion has not commenced  consultations with INTELSAT or EUTELSAT for
Orion 2, and intends to commence  such  consultation  with  INTELSAT for Orion 2
when it is ready to make its financial  showing to the FCC, as discussed  above.
Orion believes that since there are no INTELSAT or EUTELSAT  satellites  located
adjacent to the 12|SD West  longitude  orbital  slot,  the INTELSAT and EUTELSAT
coordination should be obtained in due course.

   
   Orion 3. Orion has not commenced consultations with INTELSAT for Orion 3, but
Orion believes that since there are no INTELSAT  satellites  located adjacent to
the 139|SD East  longitude  orbital slot,  the INTELSAT  coordination  should be
obtained in due course.

_INTERNATIONAL TELECOMMUNICATION UNION

   An  international  treaty to which the U.S.  and the Republic of the Marshall
Islands are parties requires coordination of satellite orbital slots through the
procedures  of the ITU. The process for  coordinating  orbital slots through the
ITU is discussed under the caption "Orbital Slots -- ITU Coordination Process."

   Orion 1. After Orion 1 reached its orbital position and commenced  operation,
the FCC notified the ITU.  This  concluded the process for  coordination  of the
Orion 1 orbital slot.
    
                                       102
<PAGE>
   
   Orion  2. On  behalf  of  Orion,  the  FCC has  commenced  the  orbital  slot
coordination  process  through the ITU. Orion believes that its use of the 12|SD
West longitude slot for Orion 2 is not likely to interfere with proposed uses of
adjacent slots filed for by other governments,  except for a possible overlap of
75 MHz with one proposal as  discussed  more fully under the caption "-- Orbital
Slots -- ITU Coordination Process."

   Orion 3. Orion,  through the Republic of the Marshall Islands,  has filed the
appropriate documentation with the ITU to begin the ITU coordination process for
Orion 3 at 139|SD East longitude.  As discussed more fully under the caption "--
Orbital Slots -- ITU Coordination Process," based upon the time of filing by the
Republic of the Marshall Islands,  Orion believes that the proposed orbital slot
for Orion 3 would have priority under ITU procedures  with respect to the 139|SD
East longitude  orbital slot, but some  proposals by other  administrations  for
adjacent slots would be entitled to effective  priority over the proposal by the
Republic of the Marshall  Islands with respect to possible  interference.  Orion
believes,  based upon its  monitoring of the proposals of other  administrations
and  information  in the industry  regarding  their  progress,  that none of the
administrations with effective priority over the proposal by the Republic of the
Marshall  Islands will be able to launch a satellite  prior to launch of Orion 3
to take advantage of such priority. Orion also believes that it can complete the
ITU coordination  process for Orion 3 at 139|SD East longitude,  however,  there
can be no assurance that this will be achieved.

_UNITED STATES REGULATORY RESTRICTIONS
    

   Orion is subject to regulation under the  Communications  Act, the FCC's July
1985 Separate  Systems  decision as modified by subsequent FCC decisions,  other
FCC  regulations,  and the terms of the  various  orders  issued by the FCC with
respect  to Orion  and its  subsidiaries,  including  the  terms of the  Orion 1
License.   These   regulations,   orders  and   authorizations   impose  various
restrictions  on  Orion  and on  other  similarly  situated  companies.  Certain
important restrictions are described below.

   Limited Interconnection with Public Switched Message Networks.  Under current
U.S. policies concerning "separate satellite systems," such systems may provide:
(i) all services not  interconnected  with the public switched  network ("PSN");
(ii) emergency  restoration services and up to 8,000 64 kbps equivalent circuits
per satellite  interconnected  with the PSN for common carrier  public  switched
international  services; and (iii) interconnected  private line services.  Under
applicable FCC orders,  Orion has been authorized to provide up to 8,000 64 kbps
equivalent circuits  interconnected to the PSN for public switched services. All
U.S.  restrictions  on the  interconnection  of public  switched  networks  with
separate  satellite  systems are expected to  terminate in the first  quarter of
1997. Orion's networking  business is intended to be non-common carrier service,
and  accordingly  it will not be  permitted to provide  interconnected  switched
services, but will be permitted to sell this capacity to common carriers.

   Use of the Orion 1 Satellite System for U.S.  Domestic  Services.  In January
1996, the FCC eliminated  certain  distinctions  between U.S.  licensed domestic
satellites  and separate  satellite  systems.  It  authorized  both sets of U.S.
licensed  satellite   operators  to  provide  both  domestic  and  international
services.  Domestic  operators have designed their current satellite  facilities
principally for continental U.S. coverage of the United States,  and thus may as
a general matter offer only limited  competition for  international  services at
the outset.  However,  future satellite designs of domestic satellite  operators
could be modified to more directly compete in the international market.

   New Orbital Locations. The FCC now requires applicants, at the time of filing
for an orbital position (either domestic arc or international orbital position),
to  demonstrate  the  financial  ability to  construct,  launch and operate that
satellite for a one year period. This new requirement will have no change in the
licensing of Orion's orbital  positions at 37.5|SD West,  12|SD West, 47|SD West
longitude and 126|SD East  longitude  (the orbital slot at 139|SD East longitude
is not being pursued through the FCC and is not subject to the financial showing
requirement.)  To the extent that Orion is seeking an orbital  location  through
the FCC,  Orion will need to have  significant  financing on hand at the time of
application or obtain a waiver of the required financial demonstration. There is
no assurance that Orion will be able to obtain such waiver.
                                       103
<PAGE>
   
   Unauthorized  Transfer of Control.  The  Communications  Act bars a change in
control of the holder of FCC licenses  without prior  approval from the FCC. Any
finding that a change of control  without prior FCC approval had occurred  could
have a significant  adverse effect on Orion's  ability to implement its business
plan.

_INTERNATIONAL REGULATION
    

   Orion will need to comply with the applicable laws and obtain the approval of
the regulatory authority of each country in which it proposes to provide network
services  or operate  VSATs.  The laws and  regulatory  requirements  regulating
access to satellite  systems vary from country to country.  Some  countries have
substantially  deregulated satellite  communications,  making customer access to
Orion  services  a simple  procedure,  while  other  countries  maintain  strict
monopoly regimes.  The application  procedure can be time-consuming  and costly,
and the terms of licenses vary for different countries.

   Orion provides  service using the licenses it obtains or that are obtained by
local  ground  operators  or,  in  certain  cases,   through   customer-obtained
authorizations.  For  example,  Orion's  representatives  in the United  Kingdom
(Kingston  Communications),  France (Matra Hachette),  Germany (Nortel Dasa) and
Italy (Telecom Italia) have licenses in such countries.  Orion also has obtained
"landing rights" through the INTELSAT treaty  (although each INTELSAT  signatory
country  retains  sovereignty  over the  transmission  of satellite  signals and
retains the right to object to the use of satellites within its borders).  Orion
is now authorized,  either directly or through its ground operators,  to provide
service in 27 European countries.

   
   Orion  expects to pursue a similar  strategy  in Asia and Latin  America.  In
addition,  Orion will need to comply with the  national  laws of each country in
which it  provides  services.  Laws  with  respect  to  satellite  services  are
currently  unclear in  certain  jurisdictions,  particularly  within the Orion 3
footprint.  In certain of these  jurisdictions,  satellite  services may only be
provided via domestic  satellites.  The Company  believes  that certain of these
restrictions  may change and that it can structure its operations to comply with
the remaining  restrictions.  However, there can be no assurance in this regard.
See "Risk  Factors -- Risks  Relating to Orion's  Business -- Approvals  Needed;
Regulation of Industry." 
    

HUMAN RESOURCES

   
   As of  October  31,  1996,  Orion  and its  subsidiaries  had  175  full-time
employees.  Of its  total  work  force,  six are part of  management,  44 are in
engineering  or satellite  control  operations,  75 are in marketing,  sales and
sales support, and 50 are devoted to support and administrative activities.
    

LEGAL PROCEEDINGS

   
   In October 1995, Skydata Corporation ("Skydata"), a former contractor,  filed
suit against Orion  Atlantic,  Orion  Satellite  Corporation  and Orion,  in the
United States District Court for the Middle  District of Florida,  claiming that
certain Orion Atlantic  operations using frame relay switches infringe a Skydata
patent.  Skydata's  suit sought  damages in excess of $10 million and asked that
any damages assessed be trebled. On December 11, 1995, the Orion parties filed a
motion to  dismiss  the  lawsuit  on the  grounds  of lack of  jurisdiction  and
violation of a mandatory  arbitration  agreement.  In addition,  on December 19,
1995, the Orion parties filed a Demand for Arbitration  against Skydata with the
American  Arbitration  Association in Atlanta,  Georgia,  requesting  damages in
excess of $100,000 for breach of contract and declarations,  among other things,
that Orion and Orion Atlantic own a royalty-free license to the patent, that the
patent is invalid and  unenforceable  and that Orion and Orion Atlantic have not
infringed  on the patent.  On March 5, 1996,  the court  granted  the  Company's
motion to dismiss the lawsuit on the basis that Skydata's  claims are subject to
arbitration.  Skydata  appealed  the  dismissal  to the United  States  Court of
Appeals  for the  Federal  Circuit.  Skydata  also filed a  counterclaim  in the
arbitration  proceedings asserting a claim for $2 million damages as a result of
the conduct of Orion and its affiliates. On May 15, 1996, the arbitrator granted
the Orion  parties'  request  for an initial  hearing on claims  relating to the
Orion parties' rights to the patent,  including the co-ownership claim and other
contractual claims.
    
                                       104
<PAGE>
   On November 9, 1996,  Orion and Skydata executed a letter with respect to the
settlement  in full  the  pending  litigation  and  arbitration.  As part of the
settlement, the parties are to release all claims by either side relating in any
way to the patent and/or the pending  litigation and  arbitration.  In addition,
Skydata  is to grant  Orion (and its  affiliates)  an  unrestricted,  world-wide
paid-up  license to make,  have made,  use or sell products or methods under the
patent and all other corresponding continuation and reissue patents. Orion is to
pay Skydata  $437,000 over a period of two years as part of the settlement.  The
parties  are in the  process of  documenting  the terms of the  settlement  in a
formal settlement agreement.

   While Orion is party to  regulatory  proceedings  incident  to its  business,
there  are no  material  legal  proceedings  pending  or,  to the  knowledge  of
management, threatened against Orion or its subsidiaries.
                                       105
<PAGE>
                       MANAGEMENT OF ORION AND ORION NEWCO

DIRECTORS AND EXECUTIVE OFFICERS

   Orion's  Board is, and  following  the Merger  Orion  Newco's  Board will be,
divided into three classes of directors, serving staggered three-year terms. The
directors  and  executive  officers  of Orion and their ages and (in the case of
directors) terms as of November 15, 1996 are as follows:

<TABLE>
<CAPTION>
                                                                                          TERM EXPIRES 
        NAME                   AGE                 POSITION WITH ORION                    (DIRECTORS)  
- ---------------------------- ------     ------------------------------------------------- ---------------
<S>                           <C>       <C>                                               <C>            
Gustave M. Hauser ..........   67       Chairman, Director                                    1998           

W. Neil Bauer...............   50       President and Chief Executive Officer, Director       1999                
                                        (Principal Executive Officer)

David J. Frear..............   40       Vice President, Chief Financial Officer and                      
                                        Treasurer (Principal Financial Officer and                       
                                        Principal Accounting Officer)                                    

Richard H. Shay.............   55       Vice President, Corporate and Legal Affairs, and                 
                                        Secretary                                                        

Denis Curtin................   57       Senior Vice President, Orion Satellite                           
                                        Corporation and General Manager, Engineering and                 
                                        Satellite Operations                                             

Hans C. Giner...............   57       Vice President of Orion and President, Orion                     
                                        Asia Pacific Corporation                                         

Douglas H. Newman ..........   57       Vice President of Orion and President, Orion                     
                                        Satellite Corporation                                            

Richard J. Brekka ..........   35       Director                                              1997           

Warren B. French, Jr........   73       Director                                              1997           

Barry Horowitz..............   52       Director                                              1998           

Sidney S. Kahn..............   59       Director                                              1999           

John G. Puente..............   66       Director                                              1998           

W. Anthony Rice.............   44       Director                                              1997           

John V. Saeman..............   60       Director                                              1998           

Robert M. Van Degna.........   52       Director                                              1999           
                              
</TABLE>

BACKGROUND OF DIRECTORS AND EXECUTIVE OFFICERS

   Information  with respect to the business  experience and the affiliations of
the directors and executive officers of Orion (and,  following the Merger, Orion
Newco) is set forth below.

   Gustave M. Hauser has been  Chairman of Orion since January 1996 and has been
a director of Orion since  December  1982.  Since 1983, he has been Chairman and
Chief  Executive  Officer of Hauser  Communications,  Inc.,  an  investment  and
operating  firm   specializing   in  cable   television  and  other   electronic
communications.  From  1973 to 1983 he served as  Chairman  and Chief  Executive
Officer  of  Warner-Amex  Cable  Communications,  Inc.  (formerly  Warner  Cable
Communications,  Inc.), a major  multiple  system  operator of cable  television
systems and originator of satellite delivered video programming. He is a trustee
of the  Museum  of  Television  and  Radio.  He is a past Vice  Chairman  of the
National  Cable  Television  Association,  and from 1970 to 1977 he  served,  by
appointment of the President of the United States, as a director of the Overseas
Private Investment Corporation.

   W. Neil Bauer has been  President  of Orion since  March  1993,  and has been
Chief  Executive  Officer  and a director  since  September  1993.  From 1989 to
February 1993, Mr. Bauer was employed by GE American Communications, Inc., where
he served as Senior Vice President and General Manager of
                                       106
<PAGE>
Commercial  Operations.  Prior to 1989, Mr. Bauer was Chief Financial Officer of
GE American  Communications,  Inc. and later head of commercial  sales.  He held
several  key  financial  planning  positions  at GE/RCA from 1984  through  1986
focused on operational and business analysis of diverse business units including
all  communications  units.  From  1974-1983,  he was  employed  by  RCA  Global
Communications,  an international  record carrier.  During this period,  he held
several  financial and  operational  positions and was responsible for financial
and business planning.

   David J. Frear has been Vice President and Chief  Financial  Officer of Orion
since  November 1993 and Treasurer of Orion since January 1994.  From  September
1990 through April 1993, Mr. Frear served as Vice President and Chief  Financial
Officer of Millicom Incorporated,  an international  telecommunications  service
company.  From January 1988 to September 1990, Mr. Frear held various  positions
in the  investment  banking  department  at Bear,  Stearns & Co. Inc.  Mr. Frear
received his CPA in 1979.

   Richard H. Shay has been  Secretary  of Orion since  January  1993 and a Vice
President since April 1992. From July 1981 until September 1985, Mr. Shay served
as  Chief   Counsel  to  the   National   Telecommunications   and   Information
Administration  ("NTIA") of the U.S.  Department  of Commerce and then as Deputy
General  Counsel  to the  Department,  where he was  responsible  for the  legal
matters of the Department's  agencies. In his capacity as Chief Counsel to NTIA,
Mr. Shay also served as Acting Director of its Office of  International  Policy,
served on the  official  U.S.  delegation  to the 1982  Nairobi  Plenipotentiary
Conference  of the ITU and was involved in  preparation  for the 1983 ITU Direct
Broadcast Satellite World Administrative Radio Conference.

   Denis J.  Curtin is Senior Vice  President,  OrionSat  and  General  Manager,
Engineering and Satellite Operations. He joined the Company in September 1988 as
Vice  President,  Engineering.  He previously  was Senior  Director of Satellite
Engineering of COMSAT's Systems Division. While at COMSAT, Dr. Curtin served for
over 21 years in the systems engineering,  program and engineering management of
both domestic and international  satellite  systems.  He has an MS in Physics, a
Ph.D. in Mechanical Engineering, and has published numerous papers on solar cell
and  solar  array  technology,   is  the  editor  of  the  Trends  in  Satellite
Communications  and is a Fellow of the American  Institute of  Astronautics  and
Aeronautics.

   Hans C. Giner became  President  of Orion Asia  Pacific,  Orion's  subsidiary
devoted to pursuing  construction  and launch of a satellite  covering  the Asia
Pacific  region,  in the fourth quarter of 1995 and a Vice President of Orion in
the first  quarter of 1996.  Mr.  Gin|fer  served as a consultant  to Orion from
October 1995 through January 1996 relating to similar matters. Prior thereto, he
held senior  positions in the satellite and  telecommunications  industries  for
more than 20 years.  Most  recently,  from April 1994 through  September 1995 he
served as President of Stellar One Corporation,  a high-tech company  designing,
manufacturing  and  distributing  technologies  for  telecommunications  groups,
particularly local telephone and cable television companies. Prior to that, from
November 1987 through March 1994,  Mr.  Gin|fer held several  positions for, and
ultimately served as president and CEO of Millisat  Holdings,  Inc., a member of
the Millicom Group, with worldwide  responsibility  for development of media and
telecommunications   properties,   including   broadcast,   cable  and  wireless
television.

   Douglas H. Newman has been  President of Orion  Satellite  Corporation  since
October 16, 1995. Mr. Newman was with Sprint International as Vice President and
General  Manager  Asia-Pacific  Division  from July 1993 until  October 1994. He
served as Vice President  World Wide Sales and Marketing for Analog Devices Inc.
from  December  1988 to July  1993.  Prior  to that he was a Vice  President  of
National Semiconductor Corporation both in Europe and the United States from May
1979 until December 1988. Earlier, he spent 15 years at Texas Instruments Inc.'s
European  Semiconductor  Division  in  a  variety  of  management  positions  in
engineering, marketing and sales.

   Richard  J.  Brekka  has been a director  of Orion  since June 1994.  He is a
Managing Director of CIBC Wood Gundy Capital  ("CIBC-WG"),  the merchant banking
division  of  Canadian  Imperial  Bank of  Commerce  and is a  Director  and the
President of CIBC Wood Gundy Ventures, Inc., an indirect wholly owned subsidiary
of Canadian  Imperial Bank of Commerce.  Mr.  Brekka joined  CIBC-WG in February
1992.  Prior to joining  CIBC-WG,  Mr. Brekka was an officer of Chase  Manhattan
Bank's merchant banking group from February 1988 until February 1992.
                                       107
<PAGE>
   Warren B. French,  Jr. has been a director of Orion since August 1988. He was
President and a director of Shenandoah  Telephone Company of Edinburg,  Virginia
from 1973 to 1988 and President and a director of Shenandoah  Telecommunications
Company, the parent company of Shenandoah Telephone Company,  from 1981 to 1988.
From  1988  through   1995,  he  was  Chairman  and  a  director  of  Shenandoah
Telecommunications Company. He is a past Chairman of the United States Telephone
Association and is a former director of First National Corporation.

   Barry  Horowitz has been a director of Orion since May 1996.  He is President
and Chief  Executive  Officer of  Mitretek  Systems,  Inc.  Mitretek  works with
federal, state and local governments as well as other non-profit public interest
organizations on technology-based  research and development  programs.  Mitretek
was incorporated in December 1995 as a result of a restructuring  with The MITRE
Corporation. Principal capabilities are related to information and environmental
system technologies.  In addition, Dr. Horowitz is President and Chief Executive
Officer of  Concept 5  Technologies,  Inc.,  a  subsidiary  of  Mitretek,  which
provides technical services to commercial clients, with its initial focus on the
financial  community.  Prior to the  restructuring  and since 1969, Dr. Horowitz
served MITRE in several capacities, including Trustee and President and CEO.

   Sidney S. Kahn has been a director of Orion since July 1987.  He is presently
a private investor.  From 1977 to December 1989, he was Senior Vice President of
E.F. Hutton Company,  Inc., a wholly owned  subsidiary of the E.F. Hutton Group,
Inc. He is also a director of Delia's, Inc.

   
   John G. Puente has been a director  since 1984.  Mr.  Puente was  Chairman of
Orion  from April 1987  through  January  1996,  and since  July,  1996 has been
serving as a consultant to the Company and chairman of the  Company's  Executive
Committee. He served as Chief Executive Officer of Orion from April 1987 through
September 1993. He was a director and, from 1978 to April 1987, served as Senior
Vice  President,  Executive Vice President or Vice Chairman of M/A-COM,  Inc., a
diversified  telecommunications  and manufacturing  company. He was a founder of
SouthernNet, Inc., a fiber optic long distance communications company and one of
the two  companies  that  merged  to form  Telecom*USA,  Inc.  (which  was later
acquired  by MCI),  serving as a director  of  SouthernNet  from July 1984 until
August  1987,  and  Chairman  of the Board of  SouthernNet  from July 1984 until
December 1986.  During his tenure as Chairman of the Board of  SouthernNet,  Mr.
Puente was  instrumental  in the  founding  of the  National  Telecommunications
Network,  a national  consortium  of long  distance  fiber optic  communications
companies, and was its first chairman. In 1972, Mr. Puente was a founder of DCC,
Inc.,  of which he became  Chairman and CEO. In 1978,  DCC, Inc. was acquired by
Microwave Associates to form M/A-COM, Inc.; DCC, Inc., subsequently was acquired
by Hughes Aircraft  Company and became Hughes Network  Systems,  Inc. Mr. Puente
also  played a prominent  role in the early  development  of the  communications
satellite  industry,  holding  technical and  executive  positions in COMSAT and
American Satellite Corporation.

   W. Anthony Rice has been a director of Orion since January 1994.  Mr. Rice is
Chief Executive Officer of British Aerospace Asset Management, the business unit
responsible  for  all of the  company's  activities  in  respect  of  commercial
aircraft  leasing and  financing.  Previously,  he served as Group  Treasurer of
British  Aerospace  Public  Limited  Company  from  1991  until the end of 1995.
British Aerospace is Europe's leading defense and aerospace company.
    

   John V.  Saeman has been a director of Orion since  December  1982.  He is an
owner of Medallion Enterprises LLC, a private investment firm located in Denver,
Colorado.  Mr. Saeman was Vice Chairman and Chief Executive Officer of Daniels &
Associates,  Inc. and its related entities in the telecommunications  field from
1980 to 1988. He is former  director as well as past Chairman of Cable Satellite
Public Affairs  Network  (C-Span) as well as a former director and past Chairman
of the  National  Cable  Television  Association.  Mr.  Saeman was a director of
Celerex Corporation and is a director of Nordstrom National Credit Bank. Celerex
Corporation filed a petition for  reorganization  under Chapter 11 of the United
States Bankruptcy Code in 1995.
                                       108
<PAGE>
   Robert M. Van Degna has been a director of Orion  since June 1994.  He is the
managing  general partner of Fleet Equity  Partners.  Mr. Van Degna joined Fleet
Financial  Group  in 1971 and has  held a  variety  of  lending  and  management
positions  until he  organized  Fleet  Equity  Partners  in 1982 and  became its
managing  general  partner.  Mr.  Van Degna  also  serves as a  director  of ACC
Corporation and, Preferred Networks, Inc.

   
   Orion's  Certificate  of  Incorporation  and Bylaws provide that the Board of
Directors of Orion,  which presently  consists of 11 members (with one vacancy),
shall consist of that number of directors  determined by resolution of the Board
of  Directors.  The  Certificate  of  Incorporation  provides  that the Board of
Directors shall be divided into three classes,  each consisting of approximately
one-third of the total number of  directors.  Class I Directors,  consisting  of
Messrs.  Hauser,  Puente and  Saeman,  will hold  office  until the 1998  annual
meeting of  stockholders;  Class II  Directors,  consisting  of  Messrs.  Bauer,
Horowitz,  Kahn and Van Degna will hold office until the 1999 annual  meeting of
stockholders;  and Class III Directors  consisting of Messrs.  Brekka,  Rice and
French will hold office until the 1997 annual meeting of stockholders. There are
no  family  relationships  among  any of the  directors  or  officers  of Orion.
Executive officers serve at the discretion of the Board of Directors.
    

   Three directors, Messrs. Rice, Brekka and Van Degna, were elected pursuant to
agreements with each of British Aerospace, CIBC and Fleet,  respectively,  which
terminated in August 1995 when the Orion Common Stock became publicly traded.

COMMITTEES OF THE BOARD OF DIRECTORS

   The Board of Directors  has  established  a Committee on Auditing,  Corporate
Responsibility  and  Ethics  (the  "Audit  Committee"),  a  Committee  on  Human
Resources  and  Compensation  (the  "Compensation   Committee"),   an  Executive
Committee, a Finance Committee and a Nominating Committee.

   The Audit Committee is composed of Messrs.  Van Degna (chairman),  Hauser and
Kahn.  The Audit  Committee  examines  and  considers  matters  relating  to the
financial  affairs  of  Orion,  including  reviewing  Orion's  annual  financial
statements,  the  scope of the  independent  annual  audit  and the  independent
auditors' letter to management  concerning the effectiveness of Orion's internal
financial and  accounting  controls.  From the time Orion became  subject to the
Exchange Act through December 31, 1995 (the "1995 Public Company  Period"),  the
Audit Committee held one meeting.

   The Compensation Committee is composed of Messrs. Brekka (chairman),  French,
Saeman  and  Van  Degna.   The  Compensation   Committee   considers  and  makes
recommendations to Orion's Board of Directors with respect to programs for human
resource  development  and  management  organization  and  succession,  approves
changes in senior executive compensation, considers and makes recommendations to
Orion's Board of Directors with respect to compensation matters and policies and
employee  benefit and incentive plans and exercises  authority  granted to it to
administer such plans and  administers  Orion's stock option and grants of stock
options under the stock option plans. During the 1995 Public Company Period, the
Compensation  Committee  held two meetings.  Three of the four members  attended
both meetings; Mr. Brekka attended one of the two meetings.

   The  Executive  Committee  is  composed  of  Messrs.   Hauser,  Kahn,  Puente
(chairman),  Saeman and Van Degna. The Executive  Committee  provides  strategic
direction with respect to financing, strategic partners, acquisitions and market
focus, subject to approval by the Board of Directors of all significant actions.
The Executive  Committee was formed in July 1996 and has met numerous times with
regard to the  Transactions  and other  matters.  Mr.  Puente has been  actively
engaged  as  chairman  of  the  Executive   Committee  in  connection  with  the
Transactions.

   The Finance Committee is composed of Messrs. Brekka, Hauser, Kahn (chairman),
Puente,   Rice  and  Saeman.   The  Finance   Committee   considers   and  makes
recommendations  to the Board of Directors with respect to the financial affairs
of Orion,  including  matters  relating to capital  structure and  requirements,
financial  performance,   dividend  policy,  capital  and  expense  budgets  and
significant  capital  commitments.  During the 1995 Public Company  Period,  the
Finance Committee held ten meetings. Four of the members attended at least eight
of these meetings; Messrs. Rice and Brekka attended fewer than that number.
                                       109
<PAGE>
   The  Nominating  Committee is composed of Messrs.  French,  Puente and Saeman
(chairman).  The  Nominating  Committee  recommends  to the  Board of  Directors
qualified   candidates   for  election  as  directors  of  Orion  and  considers
candidates, if any, recommended by stockholders.  During the 1995 Public Company
Period, the Nominating Committee held one meeting. Each member of the Nominating
Committee attended this meeting.

LIMITS ON LIABILITY; INDEMNIFICATION

   The  provisions of Orion Newco's  Certificate  of  Incorporation  relating to
limits on liability and indemnification of directors are substantially identical
to the provisions of Orion's Certificate of Incorporation summarized below.

   Orion's Certificate of Incorporation provides that Orion's directors will not
be liable for monetary  damages for breach of the  directors'  fiduciary duty of
care to  Orion  and its  stockholders.  This  provision  in the  Certificate  of
Incorporation   does  not  eliminate  the  duty  of  care,  and  in  appropriate
circumstances  equitable  remedies  such as an  injunction  or  other  forms  of
non-monetary  relief would remain  available  under  Delaware law. In accordance
with the  requirements  of Delaware law,  Orion's  directors  remain  subject to
liability  for  monetary  damages (i) for any breach of their duty of loyalty to
Orion  or its  stockholders,  (ii) for acts or  omissions  not in good  faith or
involving  intentional  misconduct  or knowing  violation  of law,  (iii)  under
Section 174 of the Delaware General  Corporation Law for approval of an unlawful
dividend  or  an  unlawful  stock  purchase  or  redemption  and  (iv)  for  any
transaction from which the director derived an improper personal  benefit.  This
provision  also does not affect a  director's  responsibilities  under any other
laws,  such as the  federal  securities  laws or state or federal  environmental
laws.

   
   Orion's  Certificate of Incorporation also provides that, except as expressly
prohibited  by law,  Orion shall  indemnify any person who was or is a party (or
threatened to be made a party) to any threatened,  pending or completed  action,
suit or  proceeding  by reason of the fact that such person is or was a director
or officer of Orion (or is or was  serving at the request of Orion as a director
or officer of another enterprise), against expenses (including attorneys' fees),
judgments, fines and amounts paid in settlement actually and reasonably incurred
by such person in connection with such action, suit or proceeding if such person
acted in good faith and a manner such person reasonably believed to be in or not
opposed to the best interests of Orion, and, with respect to any criminal action
or  proceeding,  had no  reasonable  cause to  believe  his or her  conduct  was
unlawful.  Such indemnification shall not be made in respect of any claim, issue
or matter as to which such person shall have been adjudged to be liable to Orion
unless (and only to the extent that) the Delaware Court of Chancery or the court
in which such action or suit was  brought  determines  that,  in view of all the
circumstances  of the case,  such  person is fairly and  reasonably  entitled to
indemnity. 
    
                                       110
<PAGE>
SUMMARY COMPENSATION TABLE

   The  following  table sets forth a summary of total  compensation,  including
bonuses, paid to the Chief Executive Officer and the four other most highly paid
executive  officers  (the  "named  executive  officers")  for  services  in  all
capacities to Orion and its subsidiaries for the fiscal years ended December 31,
1996, 1995 and 1994.

<TABLE>
<CAPTION>
                                                  ANNUAL COMPENSATION                LONG TERM COMPENSATION
                                       ------------------------------------   ----------------------------------
                                                                                       AWARDS            PAYOUTS
                                                                              -------------------------  -------
                                                                 OTHER                       SECURITIES
                                                                 ANNUAL       RESTRICTED     UNDERLYING            ALL OTHER
          NAME AND                                               COMPEN-         STOCK        OPTIONS/     LTIP      COMPEN-  
     PRINCIPAL POSITION          YEAR   SALARY($)   BONUS($)  SATION ($)(1)    AWARD(S)($)     SARs(#)   PAYOUTS    SATION($)
- ------------------------------  ------ ----------  ---------- -------------   ------------   ----------- -------  -----------
<S>                              <C>    <C>         <C>       <C>                              <C>    
W. NEIL BAUER, ...............   1996   $278,106    $   --    $    --                          110,294
 PRESIDENT AND CHIEF .........   1995    265,000     90,000    
 EXECUTIVE OFFICER ...........   1994    250,000    100,000    100,684

DAVID J. FREAR, ..............   1996    185,996       --         --
 VICE PRESIDENT, TREASURER ...   1995    179,005     40,000      4,570                          55,147
 AND CHIEF FINANCIAL OFFICER .   1994    170,000     51,000     25,715

DOUGLAS H. NEWMAN ............   1996    201,206       --         --
 VICE PRESIDENT OF ORION .....   1995     34,618     14,000                                     50,000
 AND PRESIDENT, ORION
  SATELLITE
 CORPORATION .................   1994       --

HANS C. GINER ................   1996    141,638                                                35,000
 VICE PRESIDENT OF ORION AND .   1995       --
 PRESIDENT, ORION ASIA PACIFIC
 CORPORATION .................   1994       --

DENIS J. CURTIN, .............   1996    155,380                                                 5,000
 SENIOR VICE PRESIDENT OF ....   1995    151,081     38,000                                     24,705
 ORION SATELLITE CORPORATION .   1994    133,850     35,700
</TABLE>
- ----------
   (1) Relocation expenses.

OPTION GRANTS IN LAST FISCAL YEAR

   Orion has adopted a 1987 Employee Stock Option Plan (the "1987 Employee Stock
Option Plan"). Under the 1987 Employee Stock Option Plan, options to purchase up
to an  aggregate of 1,470,588  shares of Orion  Common Stock are  available  for
grants to employees of Orion.  Orion has also  adopted a  Non-Employee  Director
Stock Option Plan. The following table sets forth information  concerning grants
of stock options to the named executive  officers  pursuant to the 1987 Employee
Stock Option Plan during the year ended December 31, 1996.
<TABLE>
<CAPTION>
                                                                          Potential Realized
                                                                           Value at Assumed 
                                                                             Annual Rates   
                                                                            of Stock Price  
                                                                            Appreciation    
                   Individual Grants                                       for Option Term  
                   -----------------                                      ------------------
                     Number of   % of Total                               
                    Securities     Options    Exercise or                 
                    Underlying   Granted to   Base Price
                     Options    Employees in   Per Share   Expiration
    Name             Granted    Fiscal Year   ($/Sh)(1)       Date         5%($)    10%(4)
    ----             -------    -----------   ---------       ----         -----    ------
<S>                    <C>         <C>          <C>       <C>           <C>       <C>    
W.   Neil Bauer.....       --      --
David J. Frear .....       --      --
Douglas H. Newman...       --      --
Hans C. Giner ......   25,000      20%           8.49     01/16/03 (2)   86,386    201,425
                       10,000       8%          10.78     11/19/03 (2)   43,875    102,302
Denis J. Curtin ....    5,000       4%          10.78     11/19/03 (2)   21,937     51,151
</TABLE>
(1) The option exercise price is equal to one hundred percent of the fair market
    value of the Orion Common Stock on the date the option was granted.

(2) The options will vest in equal installments over a five-year period from the
    date of grant.

OPTION EXERCISES IN LAST FISCAL YEAR AND YEAR-END OPTION VALUES

   The following table sets forth the value of all  unexercised  options held at
year-end  1996 by the  named  executive  officers.  No named  executive  officer
exercised any stock options during the fiscal year.
                                       111

<PAGE>
                        NUMBER OF SECURITIES
                       UNDERLYING UNEXERCISED        VALUE OF UNEXERCISED
                               OPTIONS             IN-THE-MONEY OPTIONS AT
                        AT DECEMBER 31, 1996        DECEMBER 31, 1996 (1)
       NAME          EXERCISABLE/UNEXERCISABLE    EXERCISABLE/UNEXERCISABLE
- -----------------  ----------------------------   --------------------------
W. Neil Bauer ......       97,058/138,235               312,130/279,780
David J. Frear .....        35,293/60,294                 75,659/86,286
Douglas H. Newman...        10,000/40,000                32,050/128,200
Hans C. Giner ......             0/35,000                     0/130,575
Denis J. Curtin ....        31,284/20,661                121,404/40,321

   (1) Based on a per share price of $12.875 on December 31, 1996.

COMPENSATION OF DIRECTORS

   Prior to January 1996 (Orion having become a publicly  traded  company during
1995),  directors  did not  receive  compensation  for  serving  on the Board of
Directors or its  committees  but were  reimbursed  for their  expenses for each
Board of Directors or its  committee  meeting  attended.  Commencing  in January
1996, directors receive annual compensation of $4,000,  $1,500 for each Board of
Directors  meeting  attended,  $750 for each committee  meeting attended and per
annum grants of stock  options to purchase  10,000  shares of Orion Common Stock
under the 1996  Non-Employee  Director  Stock Option Plan.  An initial  grant of
options to purchase 10,000 shares of Orion Common Stock under that plan was made
to each non-employee  director in January 1996. In addition, an initial grant of
options to purchase 30,000 shares of Orion Common Stock under that plan was made
to Barry  Horowitz,  a director,  upon his  election  in March 1996.  The option
exercise price of the options granted to each  non-employee  director in January
1996 and Mr.  Horowitz in March 1996 was equal to the fair market value of Orion
Common Stock on the respective dates the options were granted.

EMPLOYMENT  AGREEMENTS  AND  TERMINATION  OF  EMPLOYMENT  AND  CHANGE IN CONTROL
ARRANGEMENTS

   Orion has not entered into any  employment  agreements or any  termination of
employment or change in control  arrangements  with any of its officers,  except
for certain change in control  vesting  provisions in the 1987 Stock Option Plan
described below.

   In his capacity as a consultant to the Company, John G. Puente, a director of
the Company and Chairman of the Executive Committee, is compensated at a rate of
$25,000 per month and has been granted  non-incentive  stock options to purchase
up to an aggregate of 100,000  shares of Orion Common Stock at an exercise price
of $9.83 per share. Of the options granted to Mr. Puente, 50% are vested and 50%
will vest upon the successful  completion during Mr. Puente's tenure as Chairman
of the  Executive  Committee  or  within  six  months  thereafter,  of the Notes
Offering.  All options granted to Mr. Puente will vest immediately upon the sale
or merger of the Company during Mr. Puente's tenure as Chairman of the Executive
Committee or within six months thereafter.

COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION

   
   Mr.  Bauer,  the  President  and Chief  Executive  Officer of Orion,  and Mr.
Puente,  then  Chairman  of Orion,  served  on the  Compensation  Committee  and
therefore  participated in making  recommendations  to the Board of Directors on
officer compensation matters until June 28, 1995.
    

STOCK OPTION PLANS

   1987  Employee  Stock  Option  Plan.  In April 1987,  Orion  adopted its 1987
Employee  Stock  Option Plan.  Under the 1987  Employee  Stock  Option Plan,  as
amended in March  1995,  options to  purchase up to an  aggregate  of  1,470,588
shares of Orion  Common  Stock may be granted to key  employees of Orion and its
subsidiaries. The 1987 Employee Stock Option Plan provides for the grant both of
incentive  stock  options  intended to qualify as such under  Section 422 of the
Internal Revenue Code of 1986, as amended (the "Code"),  and nonstatutory  stock
options.  The 1987 Employee Stock Option Plan will terminate in May 1997, unless
sooner terminated by the Board of Directors.
                                       112
<PAGE>
   The 1987 Employee  Stock Option Plan is  administered  by the Board,  but the
Board has  delegated  administration  to the  Compensation  Committee,  which is
comprised of  disinterested  directors.  Subject to the limitations set forth in
the  1987  Employee  Stock  Option  Plan,  the  Compensation  Committee  has the
authority to select the persons to whom grants are to be made,  to designate the
number of shares to be covered  by each  option and  whether  such  option is an
incentive  stock option or a  nonstatutory  stock option,  to establish  vesting
schedules,  to  specify  the  type of  consideration  to be paid to  Orion  upon
exercise  and,  subject to certain  restrictions,  to specify other terms of the
options.  The maximum  term of options  granted  under the 1987  Employee  Stock
Option Plan is ten years.  The  aggregate  fair  market  value of the stock with
respect to which incentive  stock options are first  exercisable in any calendar
year may not exceed  $100,000 per  individual.  Options  granted  under the 1987
Employee  Stock Option Plan  generally  are  non-transferable  and expire either
upon, or 30 days after, the termination of an optionee's employment relationship
with Orion.  In general,  if an optionee dies or is permanently  disabled during
his or her  employment  by or  service  to Orion,  such  person's  option may be
exercised up to one year following such death or disability.

   Options  granted under the 1987  Employee  Stock Option Plan to the executive
officers  will  immediately  vest in the  event  the  optionee's  employment  is
terminated  within two years after a "Change in Control" by Orion other than for
"Cause" or by the  optionee  for "Good  Reason" (as such terms are defined in an
applicable  resolution of the Board of  Directors).  "Cause" for  termination of
employment is narrowly  defined,  including  only such matters as fraud, a crime
involving moral  turpitude,  compromising  trade secrets,  willfully  failing to
perform  material  assigned  duties or gross or willful  misconduct  that causes
substantial  harm to Orion.  "Good Reason"  means a reduction in the  optionee's
base  salary,  except  for a  reduction  of up to  10%  due  to a  reduction  in
compensation  generally applicable to executive officers of Orion, a substantial
reduction  in  responsibilities  or required  relocation.  A "Change in Control"
occurs  when any person or entity  becomes  the  beneficial  owner,  directly or
indirectly,  of securities representing 51% or more of the combined voting power
of  Orion's  then  outstanding   securities  (excluding  for  purposes  of  such
computation all securities of Orion  beneficially owned by such person or entity
as of March 15, 1995).

   The exercise  price of incentive  stock  options must equal at least the fair
market value of the Orion Common Stock on the date of grant.  The exercise price
of  nonstatutory  stock  options may be less than the fair  market  value of the
Orion Common Stock on the date of grant.  The exercise price of incentive  stock
options  granted to any  person  who at the time of grant owns stock  possessing
more than 10% of the total combined voting power of all classes of stock must be
at least  110% of the fair  market  value of such stock on the date of grant and
the term of these options cannot exceed five years.

   As of  September  30,  1996,  Orion had  options  outstanding  under the 1987
Employee Stock Option Plan to purchase an aggregate of 891,776 shares held by 86
persons at a weighted  average  exercise price of $9.77 per share.  The exercise
price of all options  granted under the 1987 Employee Stock Option Plan has been
at least equal to the fair market value of the Orion Common Stock on the date of
the grant as determined in good faith by the Board of Directors. As of September
30, 1996,  options to purchase  129,755  shares of Orion  Common  Stock  granted
pursuant  to the Plan had been  exercised.  There  are  449,057  shares of Orion
Common Stock available for future grants under the Employee Plan.

   The 1987 Employee  Stock Option Plan may be amended by the Board,  subject to
stockholder  approval if such approval is then required by applicable  law or in
order for the 1987  Employee  Stock  Option  Plan to  continue  to  satisfy  the
requirements of Rule 16b-3 under the Exchange Act.

   Non-Employee  Director Stock Option Plan. In January 1996,  Orion adopted its
Non-Employee  Director  Stock Option Plan  ("Non-Employee  Director Stock Option
Plan") and up to 380,000  shares of Orion Common Stock are reserved for issuance
thereunder.  The stock options  granted under the  Non-Employee  Director  Stock
Option Plan are non-incentive options.

   Under  the  terms  of the  Non-Employee  Director  Stock  Option  Plan,  each
Non-Employee  Director (as defined)  generally will receive or have vest options
to  purchase  10,000  shares  of Orion  Common  Stock  for each  year  that such
Non-Employee  Director serves as a director of Orion. Each current  Non-Employee
Director has a vested  option to purchase  10,000  shares of Orion Common Stock,
and an
                                       113
<PAGE>
unvested  option to purchase 10,000 shares of Orion Common Stock which will vest
at the next annual meeting of stockholders  (expected to be held in May 1997) if
such director remains in office until such date. In addition,  Mr. Horowitz, who
became a director on May 20, 1996, has an additional  option to purchase  10,000
shares  which  will  vest  if  he  remains  in  office  until  the  1998  annual
stockholders  meeting.  Each  current  Non-Employee  Director  will be  annually
granted an  additional  option to purchase  10,000  shares of Orion Common Stock
each year  after  the  annual  meeting  of  stockholders  if he or she is then a
Non-Employee Director.

   Each new Non-Employee  Director whose  commencement of service is after March
20, 1996 will be granted an initial  option to purchase  the number of shares of
Orion Common Stock equal to (i) the number of complete and partial  years in the
term to which such Non-Employee Director was elected or appointed, multiplied by
(ii)  10,000.  Each  Non-Employee  Director  also will be  annually  granted  an
additional  option to purchase 10,000 shares of Orion Common Stock as of each of
(i) the day after the Non-Employee  Director's first re-election to the Board of
Directors and (ii) each year after the annual meeting of  stockholders  if he or
she is then a Non-Employee Director.

   Each option will be  exercisable  from and after the day of the first  annual
meeting of  stockholders  after grant of the  option.  In the case of an initial
option to purchase of more than 10,000 shares, the option will be exercisable to
the extent of 10,000  shares from and after the day of the first annual  meeting
of stockholders  after grant of the option,  in respect of an additional  10,000
shares from and after the day of the second annual meeting of stockholders after
grant of the  option,  and (if the  option is to  purchase  of more than  20,000
shares), in respect of an additional 10,000 shares from and after the day of the
third  annual  meeting  of  stockholders  after  grant of the  option.  Upon the
termination  of service  of a  Non-Employee  Director  in all  capacities  as an
employee and/or director of Orion and all of its affiliated companies other than
by reason of the death or permanent and total disability,  any option granted to
such Non-Employee  Director  pursuant to the Non-Employee  Director Stock Option
Plan  shall  terminate  to  the  extent  it is  not  then  exercisable.  If  the
termination  of  service  is by  reason  of the  death or  permanent  and  total
disability of a  Non-Employee  Director,  the options held by such  Non-Employee
Director  shall be  exercisable in respect of all shares subject to such options
for a period of one year from the date of such  termination  of service or until
expiration of the option, if earlier.

   The option exercise price under the  Non-Employee  Director Stock Option Plan
is equal to 100% of the fair market  value of Orion Common Stock on the date the
option is granted.  Options granted under the Non-Employee Director Stock Option
Plan expire if not exercised within five years from the date of grant.

   Payment for shares  purchased  under the  Non-Employee  Director Stock Option
Plan may be made either in cash or cash  equivalents,  in shares of Orion Common
Stock with a fair market value equal to the option price,  or a  combination  of
cash and shares of Orion Common Stock.  The  Non-Employee  Director Stock Option
Plan also allows for "cashless  exercise," in which a licensed broker tenders to
Orion cash equal to the exercise  price (plus taxes  required to be withheld) at
the time Orion issues the stock certificates.

   
   The Non-Employee  Director Stock Option Plan will terminate  automatically on
March 20, 2006,  unless  previously  terminated.  No termination,  suspension or
amendment  of the  Non-Employee  Director  Stock  Option  Plan may,  without the
consent of the optionee to whom an option has been granted, adversely affect the
rights of the holder of the option.

   Other Stock  Options.  From time to time, the Board of Directors of Orion may
grant  options to  purchase  shares of Orion  Common  Stock  outside of the 1987
Employee  Stock Option Plan and  Non-Employee  Director Stock Option Plan. As of
November 30, 1996,  options to purchase an aggregate of 123,987  shares of Orion
Common Stock were outstanding outside of such plans at an average exercise price
of $8.30.  During  1995,  6,463  options  granted  outside  of such  plans  were
exercised. 
    

OTHER EMPLOYEE BENEFIT PLANS

   1997 Employee Stock Purchase Plan. In September 1996,  Orion adopted its 1997
Employee  Stock  Purchase  Plan (the  "Stock  Purchase  Plan").  Under the Stock
Purchase  Plan,  eligible  employees  may purchase up to an aggregate of 500,000
shares of Orion Common Stock through payroll deductions.
                                       114
<PAGE>
Eligible  employees include all employees except those who have been employed by
Orion for less than  three  months,  those  who work less than five  months  per
calendar year or less than 20 hours per week, and those who would own 5% or more
of the total combined  voting power of all classes of Orion's capital stock upon
their  participation  in the Stock  Purchase  Plan. The Stock Purchase Plan will
terminate  at the sooner of  September  2006 or such time as all shares of Orion
Common Stock available under the Stock Purchase Plan have been issued.

   The Stock  Purchase  Plan is  administered  by the  Board,  but the Board has
delegated  administration  to its Human  Resources and  Compensation  Committee.
Employees may commence  participation in the Stock Purchase Plan or change their
payroll  deduction  percentages  effective  at the  beginning  of each  calendar
quarter. On the last day of each quarter, all funds accumulated in an employee's
account are used to purchase  shares of Orion Common  Stock at a purchase  price
equal to the lesser of 85% of the fair market  value of such Orion  Common Stock
(i) on the first  trading day of the quarter or (ii) on the last  trading day of
the  quarter,  but in no event  shall the  per-share  price be less than the par
value of the Orion  Common  Stock  ($.01).  No employee  may purchase in any one
calendar year shares of Orion Common Stock having an aggregate fair market value
in excess of $25,000. Orion Common Stock purchased under the Stock Purchase Plan
are entitled to full dividend participation.

   An employee's  participation  in the Stock  Purchase  Plan  terminates in the
event the  employee  voluntarily  terminates  such  participation,  ceases to be
employed by Orion or ceases to be eligible to  participate in the Stock Purchase
Plan, or in the event the Board elects to terminate the Stock  Purchase Plan. An
employee who retires,  is laid off, takes a leave of absence,  dies or suffers a
disability may directly or, in the case of death,  through the employee's estate
withdraw any payroll  deductions  remaining in the employee's  account,  receive
that  number of shares of Orion  Common  Stock which may be  purchased  with the
amount  then  credited  to the  employees  account,  or make  up any  deficiency
resulting  from missed  payroll  deductions  through an immediate  cash payment.
Participation in the Stock Purchase Plan may resume at the beginning of the next
quarter if the employee again becomes eligible to participate.

   The Stock  Purchase  Plan is not subject to the  Employee  Retirement  Income
Security Act of 1974, as amended  ("ERISA"),  nor is it qualified  under Section
401(a) of the Code.  As of November  15,  1996,  no shares of Orion Common Stock
have been purchased or issued under the Stock Purchase Plan.

   1997 401(k) Profit  Sharing Plan. In September  1996,  Orion adopted its 1997
401(k) Profit Sharing Plan (the "401(k) Plan").  Under the 401(k) Plan, eligible
employees may elect to have a portion of their pay deducted for  investment in a
variety of mutual  funds that invest in equity and debt  securities  and a money
market  account.  In  addition,  Orion  may  in  its  discretion  make  matching
contributions  in the form of cash or in the  equivalent  amount of Orion Common
Stock, and may make profit sharing contributions.  Up to 100,000 shares of Orion
Common Stock are issuable as matching  contributions  under the 401(k) Plan. The
401(k) Plan will continue indefinitely unless terminated by Orion at any time in
its discretion. Orion may also suspend matching and profit sharing contributions
at any time in its sole discretion.

   The 401(k) Plan is administered under a written trust agreement between Orion
and certain  trustees (the "401(k)  Trustees").  The 401(k) Trustees oversee the
investment of employee contributions, and Orion administers all other matters in
connection with the day-to-day  operation of the 401(k) Plan. Eligible employees
may elect to deduct up to $9,500 of their  compensation  on a pre-tax basis in a
given calendar year. The 401(k)  Trustees have  discretion to select among these
investment  media,  or employees may direct the 401(k)  Trustees to invest their
payroll deductions in accordance with specific instructions.  At its discretion,
Orion  may  match  all or part of  employee  payroll  deductions  in cash or the
equivalent  amount  of Orion  Common  Stock.  In  addition,  Orion may also make
additional  profit sharing  contributions  in its  discretion by  distributing a
certain percentage of its profits to employees pro rata based on the ratio of an
employee's   compensation   to  the  total   compensation  of  all  401(k)  Plan
participants.  Orion is responsible for directing the investment of any matching
or profit sharing contributions it makes to employee accounts.

   An employee's  payroll  deductions (and any rollover  contributions  into the
401(k)  Plan) and earnings  thereon are always 100% vested and  non-forfeitable.
Matching and profit sharing contributions become 100% vested and non-forfeitable
for any employee who attains age 65, dies, or becomes dis-
                                      115
<PAGE>
abled while working for Orion. An employee whose  employment  terminates for any
other reason will be 0% vested in any matching and profit  sharing  contribution
which the  employee  has  received  if the  employee  has less than two years of
service  with  Orion  and  100%  vested  in such  matching  and  profit  sharing
contributions if the employee has two or more years of service.  The 401(k) Plan
allows  employees  to begin  receiving  benefits  upon  age 65 or upon  becoming
disabled while employed by Orion. Employees may also withdraw from their account
in the event of certain defined hardships, and may borrow between $1,000 and the
lesser of $50,000 or 50% of the vested  amounts in their  accounts at the 401(k)
Trustee's  discretion.  An  employee's  participation  in the  401(k)  Plan will
terminate in the event of voluntary termination by the employee,  termination of
the employee's  employment or eligibility,  or Orion's election to terminate the
401(k) Plan.

   The  401(k)  Plan is  qualified  under  Section  401(a)  of the Code and as a
qualified cash or deferred compensation  arrangement under Section 401(k) of the
Code.  The  401(k)  Plan  is  also  subject  to  certain  provisions  of  ERISA,
principally  Title I, relating to protection of employee benefit rights,  and to
the  provisions  of the Code relating to  retirement  plans.  As of November 15,
1996, no shares of Orion Common Stock or other cash  matching or profit  sharing
contributions have been distributed under the 401(k) Plan.
                                       116
<PAGE>
            PRO FORMA CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                 (UNAUDITED)

   As discussed  more fully under the caption "The Merger,  the Exchange and the
Debenture  Investments,"  pursuant  to the  Merger,  each share of Orion  Common
Stock, Orion Series A Preferred Stock and Orion Series B Preferred Stock will be
converted into the right to receive one share of Orion Newco Common Stock, Orion
Newco  Series A  Preferred  Stock  and Orion  Newco  Series B  Preferred  Stock,
respectively.  In  addition,  pursuant to the  Exchange,  Orion Newco will issue
shares of Orion Newco  Series C  Preferred  Stock for the  Exchanging  Partners'
limited partnership  interests in Orion Atlantic,  a consolidated  subsidiary of
Orion,  as  a  result  of  which,  among  other  things,  Orion  Newco  and  its
subsidiaries  (including  Orion)  will  become the owner of all the  partnership
interests in Orion Atlantic.  Orion Newco will also acquire  approximately $37.5
million of Orion Atlantic's obligations to the Exchanging Partners.

   The Merger will be accounted for as a reorganization of entities under common
control.  As a result,  the assets and liabilities  transferred  pursuant to the
Merger will be accounted for at historical cost in a manner similar to a pooling
of interests.  The Exchange will be accounted for as an  acquisition of minority
interests using purchase accounting.  As a result, the assets and liabilities of
Orion  Atlantic  will be revalued to fair value to the extent of the  Exchanging
Partners'  interests acquired as a result of the Exchange.  The determination of
the fair value of the Orion Newco  Series C Preferred  Stock has been based on a
fairness  opinion  issued by Salomon  Brothers dated December 10, 1996 (see "The
Merger,  the  Exchange  and the  Debenture  Investments  --  Opinion  of Orion's
Financial  Advisor").  Such value has been allocated to Orion Atlantic's  assets
and  liabilities  based on the  estimate  of fair  market  value of the  Orion 1
satellite as of December 1, 1996 of $304 million  provided in an appraisal dated
December 20, 1996 from Ascent  Communications  Advisors,  L.P., and management's
best estimate of fair value for other assets and liabilities of Orion Atlantic.

   
   In addition to the Merger,  the Exchange and the Debenture  Investments,  the
pro forma  condensed  consolidated  balance  sheet at  September  30, 1996 gives
effect  to the  following  transactions,  which  are,  directly  or  indirectly,
conditions  precedent to the Merger, the Exchange and the Debenture  Investments
as described  above,  as if they took place on that date: (i) the Notes Offering
(including the use of the net proceeds therefrom to repay indebtedness under the
Orion 1 Credit Facility and to prefund the first six scheduled interest payments
and to pay interest rate hedge breakage costs associated with the Orion 1 Credit
Facility),  (ii) the British  Aerospace  Investment,  with gross proceeds of $50
million  (and the  application  of $1  million of the  proceeds  thereof to make
interest payments under the Orion 2 Satellite Contract),  (iii) the satisfaction
of $13 million owed to Matra Marconi Space through the Matra Marconi  Investment
of $10 million and $3 million of cash,  (iv) the acquisition by Orion of British
Aerospace's 17% ownership of Orion Asia Pacific for approximately  86,000 shares
of Orion Common Stock,  (v) payments of  approximately  $3.9 million,  including
accrued interest, owed to STET, a former Limited Partner, and (vi) the write-off
of deferred financing fees (such  transactions  collectively with the Merger and
the  Exchange,  the  "Transactions").   The  pro  forma  condensed  consolidated
statements  of  operations  for the year ended  December  31,  1995 and the nine
months ended September 30, 1996 have been prepared as if the  Transactions  took
place on  January  1,  1995.  The  unaudited  pro forma  condensed  consolidated
financial  statements do not purport to present the actual financial position or
results of  operations of the Company had the  Transactions  in fact occurred on
the dates  specified,  nor are they indicative of the results of operations that
may be achieved in the future.  The unaudited pro forma  condensed  consolidated
financial  statements  are  based on the  assumptions  and  adjustments  further
described herein. 
    
                                       117
<PAGE>
                         ORION NETWORK SYSTEMS, INC.
                PRO FORMA CONDENSED CONSOLIDATED BALANCE SHEET
                              SEPTEMBER 30, 1996
                                 (UNAUDITED)

<TABLE>
<CAPTION>
                                          ACTUAL           DEBIT           CREDIT         PRO FORMA
                                      -------------- ---------------- ---------------- ---------------
<S>                                   <C>            <C>              <C>              <C>
Current assets:
                                                                      
Cash and cash equivalents...........  $ 36,656,619   $260,125,000 (1) $216,280,254 (2) $122,338,532
                                                       48,750,000 (3)    3,050,000 (4)
                                                                         3,862,833 (5)
Accounts receivable.................     5,808,568                                        5,808,568
Accrued interest....................       157,125                                          157,125
Prepaid expenses and other..........     5,584,196                                        5,584,196
                                      -------------- ---------------- ---------------- ---------------
Total current assets................    48,206,508    308,875,000      223,193,087      133,888,421
Property and equipment: ............
Land................................        73,911                                           73,911
Telecommunications..................    22,707,786                                       22,707,786
Furniture and computer..............     4,598,505                                        4,598,505
Satellite and related...............   322,450,415      1,000,000 (3)   27,751,744 (6)  323,466,583
                                                       27,767,912 (6)
                                      -------------- ---------------- ---------------- ---------------
                                       349,830,617     28,767,912       27,751,744      350,846,785
Less accumulated depreciation ......   (57,914,578)    27,751,744 (6)                   (30,162,834)
                                      -------------- ---------------- ---------------- ---------------
Net property and equipment..........   291,916,039     56,519,656       27,751,744      320,683,951
Deferred financing costs............    11,208,678     14,875,000 (1)   11,208,678 (2)   15,175,000
                                                          250,000 (3)
                                                           50,000 (4)
Restricted cash ....................                   72,000,000 (1)                    72,000,000
Other assets........................     4,645,948      1,200,000 (3)                    24,544,477
                                                       18,698,529 (6)
                                      -------------- ---------------- ---------------- ---------------
Total assets........................  $355,977,173   $472,468,185     $262,153,509     $566,291,849
                                      ============== ================ ================ ===============
Current liabilities: ...............
Accounts payable....................  $  4,094,026                                     $  4,094,026
Accrued liabilities.................     7,374,884                                        7,374,884
Other current liabilities...........     5,402,117                                        5,402,117
Interest payable....................     3,128,365   $  3,038,858 (2,5)                      89,507
Current portion of long term debt ..    33,873,930     27,496,124 (2)                     6,377,806
                                      -------------- ---------------- ---------------- ---------------
Total current liabilities...........    53,873,322     30,534,982                        23,338,340
Long term debt......................   221,781,393    180,218,718 (2) $347,000,000 (1)  425,512,675
                                                       13,000,000 (4)   10,000,000 (4)
                                                        3,500,000 (5)   50,000,000 (3)
                                                        6,550,000 (6)
Other liabilities...................    32,878,061     30,995,875 (6)                     1,882,186
Minority interest Orion Atlantic ...    19,961,032      9,974,466 (2)                           --
                                                        9,986,566 (6)
Minority interests in other
entities............................        52,984                                           52,984
Redeemable preferred stock:  .......
 Series A...........................    15,820,460                                       15,820,460
 Series B...........................     4,718,526                                        4,718,526
 Series C...........................                                    94,000,000 (6)   94,000,000
Stockholders' equity: ..............
Common stock........................       112,325                             857 (3)      113,182
Capital in excess of par............    86,508,773                       1,199,143 (3)   87,707,916
Accumulated deficit.................   (79,729,703)     7,124,717 (2)                   (86,854,420)
                                      -------------- ---------------- ---------------- ---------------
Total stockholders' equity..........     6,891,395      7,124,717        1,200,000          966,678
                                      -------------- ---------------- ---------------- ---------------
Total liabilities and equity .......  $355,977,173   $291,885,324     $502,200,000     $566,291,849
                                      ============== ================ ================ ===============
</TABLE>
                                       118
<PAGE>
                         ORION NETWORK SYSTEMS, INC.
           NOTES TO PRO FORMA CONDENSED CONSOLIDATED BALANCE SHEET
                              SEPTEMBER 30, 1996
                                 (UNAUDITED)

   
1.  To reflect the estimated  proceeds from the Notes  Offering of $332 million,
    net of estimated  financing costs of approximately $15 million.  Of the $347
    million of gross  proceeds  from the Notes  Offering,  $222 million has been
    allocated to the Senior Notes and $125 million to the Senior Discount Notes.
    No value has been allocated to capital in excess of par value to reflect the
    issuance of the Orion Newco Common Stock warrants (the "Warrants"),  because
    such value cannot be determined until completion of the Notes Offering.  The
    Senior  Notes and Senior  Discount  Notes are  assumed to bear  interest  at
    11.875%  and  13.125%  per  annum,  respectively,  and are due in  2007.  No
    assurance  can  be  given  that  the  value  allocated  to the  Warrants  is
    indicative  of the price at which the Warrants may actually  trade.  Of such
    proceeds,  approximately  $72 million will be placed in an escrow account to
    fund the first six scheduled  interest  payments on the Senior  Notes.  Such
    amount has been  reflected as restricted  cash.  The actual amount placed in
    escrow will depend on the  interest  rate on the Senior  Notes and on market
    interest rates on the closing date of the Notes Offering.

2.  To reflect the  repayment of $207.7  million  plus accrued  interest of $2.7
    million (as of September  30, 1996) under the Orion 1 Credit  Facility,  the
    write-off  of  unamortized  deferred  financing  costs of $11.2  million and
    interest  rate  hedge  breakage  costs  of $5.9  million,  and the pro  rata
    allocation  of such costs to the minority  interests of Orion  Atlantic.  At
    January 30, 1997, the aggregate principal and interest outstanding under the
    Orion 1 Credit Facility is estimated to be approximately $222 million.
    

3.  To reflect (i) the estimated proceeds from the British Aerospace  Investment
    of $49.8 million, net of estimated financing costs of $.2 million,  (ii) the
    initial  down  payment  of $1  million  to  Matra  Marconi  Space  to  begin
    construction  of Orion 2 and  (iii)  the  acquisition  by  Orion of  British
    Aerospace's 17% common stock interest in Orion Asia Pacific,  a consolidated
    subsidiary  (for  approximately  $1.2 million in Orion Common Stock),  which
    will be completed in connection with the Transactions.

4.  To record the payment of accrued  satellite  incentive  obligations to Matra
    Hachette of $13 million, Matra's Marconi Space's corresponding  reinvestment
    of $10 million in Debentures, and financing costs of $50,000.

5.  To  reflect  the  repayment  of $3.5  million of  promissory  notes and $0.4
    million of accrued  interest (as of September  30, 1996)  thereon to STET, a
    former limited partner, required to be paid as a result of the Exchange. See
    "Certain Transactions."

6.  To reflect the effects of the Exchange Agreement,  including the acquisition
    by Orion of  certain  obligations  to the  Exchanging  Partners  aggregating
    approximately  $37.5  million,   through  the  exchange  of  the  Exchanging
    Partners'  partnership  interests in Orion Atlantic for Orion Newco Series C
    Preferred Stock. The Orion Newco Series C Preferred Stock has been valued at
    approximately  $94 million based on a fairness  opinion  prepared by Salomon
    Brothers  dated  December  10, 1996 using an  underlying  Orion Common Stock
    price of $12 per share (see "The  Merger,  the  Exchange  and the  Debenture
    Investments -- Opinion of Orion's Financial Advisor").  Such amount has been
    allocated  to the  obligations  acquired  and the  58.7%  interest  of Orion
    Atlantic previously held by the Exchanging Partners. Such allocation results
    in a step up in basis of approximately $46.5 million, of which $27.8 million
    had been allocated to the Orion 1 satellite  based on an appraisal  prepared
    by Ascent  Communications  Advisors,  L.P.  estimating the fair value of the
    Orion 1 satellite to be $304 million. The remaining step up of $18.7 million
    has been  allocated to costs in excess of fair value of net assets  acquired
    and is  included in Other  Assets in the  accompanying  Pro Forma  Condensed
    Consolidated  Business  Sheet.  Accumulated  depreciation  of $27.8  million
    relating  to the  portion of the  satellite  revalued to fair value has been
    offset against the basis of the satellite.
                                       119
<PAGE>
                         ORION NETWORK SYSTEMS, INC.
           PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS
                     NINE MONTHS ENDED SEPTEMBER 30, 1996
                                 (UNAUDITED)

<TABLE>
<CAPTION>
                                                ACTUAL           DEBIT        CREDIT      PRO FORMA
                                           --------------- ---------------- --------- ----------------
<S>                                        <C>             <C>              <C>       <C>
Revenues ................................  $ 30,015,517                               $  30,015,517
Operating expenses: .....................
Direct...................................     4,285,834                                   4,285,834
Sales and marketing......................     7,792,666                                   7,792,666
Engineering and technical services ......     6,333,525                                   6,333,525
General and administrative...............    11,469,235                                  11,469,235
Depreciation and amortization............    26,402,947    $ 3,362,919 (1)               29,765,866
                                           --------------- ---------------- --------- ----------------
Total....................................    56,284,207      3,362,919                   59,647,126
                                           --------------- ---------------- --------- ----------------
Loss from operations.....................   (26,268,690)     3,362,919                  (29,631,609)
Other expense (income): .................
Interest income..........................    (1,841,868)                                 (1,841,868)
Interest expense.........................    20,228,519     19,292,733 (2)               39,521,252
Other....................................       (48,356)                                    (48,356)
                                           --------------- ---------------- --------- ----------------
Total other expense (income).............    18,338,295     19,292,733                   37,631,028
                                           --------------- ---------------- --------- ----------------
Loss before minority interest............   (44,606,985)    22,655,652                  (67,262,637)
Minority interest........................    24,799,698     24,799,698 (3)                      --
                                           --------------- ---------------- --------- ----------------
Net loss.................................   (19,807,287)    47,455,350                  (67,262,637)
Preferred stock dividend and accretion ..     1,006,285      6,329,100 (4)                7,335,385
                                           --------------- ---------------- --------- ----------------
Net loss attributable to common
shareholders.............................  $(20,813,572)   $53,784,450                $ (74,598,022)
                                           =============== ================ ========= ================
Net loss per common share................  $      (1.90)                              $       (6.46)
                                           ===============                            ================
Weighted average common shares
outstanding..............................    10,943,287                                  11,544,626 (5)
                                           ===============                            ================
</TABLE>
                                       120
<PAGE>
                         ORION NETWORK SYSTEMS, INC.
      NOTES TO PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS
                     NINE MONTHS ENDED SEPTEMBER 30, 1996
                                 (UNAUDITED)

1.  To reflect  depreciation on the step up in basis on the Orion 1 satellite of
    $2.0  million  and the  amortization  of excess  cost over fair value of net
    assets  acquired  of $1.3  million  resulting  from the  acquisition  of the
    Limited Partners' partnership interests in Orion Atlantic over the estimated
    useful life of the satellite of 10.5 years.

2.  To reflect the adjustment to interest as follows:

<TABLE>
<CAPTION>
<S>                                                                                              <C>
          Reduction in Orion 1 Credit Facility interest expense................................  $(12,096,466)   
          Reduction in Orion 1 Credit Facility interest rate cap expense.......................    (1,067,500)   
          Reduction in amortization of deferred financing costs on the Orion 1 Credit                            
          Facility.............................................................................    (1,597,941)   
          Interest expense on Senior Notes.....................................................    19,771,875    
          Interest expense on Senior Discount Notes............................................    14,266,277    
          Interest expense on Debentures, net of amounts capitalized related to construction                     
            of Orion 2 of $3.2 million.........................................................       695,625    
          Interest expense from amortization of deferred financing costs on new borrowings ....     1,115,625    
          Reduction in interest expense relating to repayment of other obligations to Limited                    
            Partners  .........................................................................    (1,794,762)   
                                                                                                 --------------- 
           Net increase in pro forma interest expense..........................................  $ 19,292,733    
                                                                                                 =============== 
          
</TABLE>

    The Senior Notes and Senior Discount Notes are assumed to bear interest at a
    rate of  11.875%  and  13.125%,  respectively,  per  annum.  A change in the
    interest  rate on the Notes of 0.5% would result in a change of $1.3 million
    in interest expense for the nine months ended September 30, 1996. The amount
    of pro forma  interest  expense  with respect to the Notes does not give the
    effect to any allocation of the gross proceeds of the Notes Offering between
    the Notes and  Warrants.  Because a portion  of the gross  proceeds  will be
    allocated to the  Warrants,  the discount on the Notes  resulting  therefrom
    will be accreted into interest  expense (using the interest method) over the
    term of the Notes.

3.  Elimination of minority interest as a result of the Exchange.

4.  To record the  dividend  requirement  on the Orion Newco  Series C Preferred
    Stock  issued as a result of the  Exchange as well as pro rata  accretion to
    redemption value over a 25 year-period.

5.  Pro forma  weighted  average  shares  outstanding  for the nine months ended
    September 30, 1996 consist of:

<TABLE>
<CAPTION>
<S>                                                                                       <C>
          Historical weighted average shares outstanding................................  10,943,287   
          Pro forma issuance of shares to British Aerospace and Matra Marconi Space for                
            interest on $60 million Debentures .........................................     515,625   
          Pro forma issuance of shares to British Aerospace for purchase of 17%                        
            minority interest in Orion Asia Pacific ....................................      85,714   
                                                                                          ------------ 
          Total pro forma weighted average shares outstanding...........................  11,544,626   
                                                                                          ============ 
</TABLE>
                                       121
<PAGE>
                           ORION NETWORK SYSTEMS, INC.
            PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS
                          YEAR ENDED DECEMBER 31, 1995
                                   (UNAUDITED)

<TABLE>
<CAPTION>
                                             ACTUAL           DEBIT        CREDIT     PRO FORMA
                                        --------------- ---------------- --------- ---------------
<S>                                     <C>             <C>              <C>       <C>
Revenues..............................  $ 22,283,882                               $   22,283,882
Operating expenses: ..................
Direct................................    10,485,745                                   10,485,745
Sales and marketing...................     8,613,399                                    8,613,399
Engineering and technical services ...     8,539,644                                    8,539,644
General and administration............    10,072,429                                   10,072,429
Depreciation and amortization.........    31,403,376    $ 4,253,528 (1)                35,656,904
                                        --------------- ---------------- --------- ---------------
Total.................................    69,114,593      4,253,528                    73,368,121
                                        --------------- ---------------- --------- ---------------
Loss from operations..................   (46,830,711)     4,253,528                   (51,084,239)
Other expense (income): ..............
Interest income.......................    (1,924,822)                                  (1,924,822)
Interest expense......................    24,738,446     25,898,354 (2)                50,636,800
Other.................................     3,359,853                                    3,359,853
                                        --------------- ---------------- --------- ---------------
Total other expense (income)..........    26,173,477     25,898,354                    52,071,831
                                        --------------- ---------------- --------- ---------------
Loss before minority interest.........   (73,004,188)    30,151,882                  (103,156,070)
Minority interest.....................    46,089,010     46,089,010 (3)                       --
                                        --------------- ---------------- --------- ---------------
Net loss..............................   (26,915,178)    76,240,892                  (103,156,070)
Preferred stock dividend and
accretion.............................     1,329,007      8,438,800 (4)                 9,767,807
                                        --------------- ---------------- --------- ---------------
Net loss attributable to common
shareholders..........................  $(28,244,185)   $84,679,692                $ (112,923,877)
                                        =============== ================ ========= ===============
Net loss per common share.............  $      (3.07)                              $       (12.01)
                                        ===============                            ===============
Weighted average common shares
outstanding...........................     9,103,505                                    9,376,719 (5)
                                        ===============                            ===============
</TABLE>
                                       122
<PAGE>
                         ORION NETWORK SYSTEMS, INC.
      NOTES TO PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS
                         YEAR ENDED DECEMBER 31, 1995
                                 (UNAUDITED)

1.  To reflect  depreciation on the step up in basis on the Orion 1 satellite of
    $2.5  million  and the  amortization  of excess  cost over fair value of net
    assets  acquired  of $1.7  million  resulting  from the  acquisition  of the
    Exchanging  Partners'  partnership  interests  in  Orion  Atlantic  over the
    estimated useful life of the satellite of 10.5 years.

   2. To reflect the adjustment to interest expense as follows:

<TABLE>
<CAPTION>
<S>                                                                                                        <C>
          Reduction in Orion 1 Credit Facility interest expense..........................................  $(17,437,104) 
          Reduction in Orion 1 Credit Facility interest rate cap expense.................................      (426,250) 
          Reduction in amortization of deferred financing costs on the Orion 1 Credit Facility ..........    (2,012,222) 
          Interest expense on Senior Notes ..............................................................    26,362,500  
          Interest expense on Senior Discount Notes......................................................    16,824,834  
          Interest expense on Debentures net of amounts capitalized related to construction of Orion 2                   
            of $2.3 million..............................................................................     2,993,219  
          Interest expense from amortization of deferred financing costs on new borrowings ..............     1,487,500  
          Reduction in interest expense relating to repayment of other obligations to Limited                            
          Partners   ....................................................................................    (1,894,123) 
                                                                                                           --------------
          Net increase in pro forma interest expense.....................................................  $ 25,898,354  
                                                                                                           ==============
</TABLE>

    The Senior Notes and Senior Discount Notes are assumed to bear interest at a
    rate of  11.875%  and  13.125%,  respectively,  per  annum.  A change in the
    interest  rate on the Notes of 0.5% would result in a change of $1.7 million
    in interest  expense for the year ended December 31, 1995. The amount of pro
    forma interest expense with respect to the Notes does not give effect to any
    allocation of the gross proceeds of the Notes Offering between the Notes and
    Warrants.  Because a portion of the gross  proceeds will be allocated to the
    Warrants,  the discount on the Notes  resulting  therefrom  will be accreted
    into  interest  expense  (using the  interest  method)  over the term of the
    Notes.

3.  Elimination of minority interest as a result of the Exchange.

4.  To record the  dividend  requirement  on the Orion Newco  Series C Preferred
    Stock  issued as a result of the  Exchange as well as pro rata  accretion to
    redemption value over a 25-year period.

5.  Pro forma weighted  average shares  outstanding  for the year ended December
    31, 1995 consist of:

<TABLE>
<CAPTION>
<S>                                                                                                      <C>
          Historical weighted average shares outstanding...............................................  9,103,505   
          Pro forma issuance of shares to British Aerospace and Matra Marconi Space for interest on                  
            $60 million Debentures.....................................................................    187,500   
          Pro forma issuance of shares to British Aerospace for purchase of 17% minority interest in                 
            Orion Asia Pacific.........................................................................     85,714   
                                                                                                         ----------- 
          Total pro forma weighted average shares outstanding..........................................  9,376,719   
                                                                                                         =========== 
</TABLE>
                                       123
<PAGE>
        SELECTED CONSOLIDATED FINANCIAL AND OPERATIONAL DATA OF ORION
                (DOLLARS IN THOUSANDS, EXCEPT PER SHARE DATA)

   The following  selected  consolidated  statements  of operations  and balance
sheet data as of and for the years ended December 31, 1991, 1992, 1993, 1994 and
1995 are derived from the Company's audited consolidated  financial  statements.
The selected consolidated  statements of operations and balance sheet data as of
September 30, 1996 and for the nine months ended September 30, 1995 and 1996 are
derived from the unaudited consolidated financial statements of the Company and,
in the opinion of the Company,  include all  adjustments,  consisting  of normal
recurring  accruals,  necessary  for a fair  presentation  of such  information.
Operating  results  for  the  nine  months  ended  September  30,  1996  are not
necessarily  indicative  of the results that may be achieved for the year ending
December 31, 1996.  The pro forma  consolidated  statements  of  operations  and
balance  sheet  data  are  derived  from  the  unaudited  Pro  Forma   Condensed
Consolidated  Financial  Statements  included herein. The pro forma data are not
necessarily indicative of the results that would have been achieved nor are they
indicative  of the  Company's  future  results.  The  data  should  be  read  in
conjunction with the Pro Forma Condensed  Consolidated  Financial Statements and
the  Consolidated  Financial  Statements,  related  notes  and  other  financial
information  included  herein.  From its  inception in 1982 through  January 20,
1995,  when Orion 1 commenced  commercial  operations,  Orion was a  development
stage enterprise.  Because of Orion's exclusive  management and control of Orion
Atlantic as its sole general  partner  (subject to certain rights of approval by
the Limited Partners),  and Orion's aggregate 33 1/3% (through November 1995, 41
2/3% from December 1995 through the present) partnership interest, the financial
statements of Orion Atlantic are consolidated  with the financial  statements of
Orion.  See  "Management's  Discussion  and Analysis of Financial  Condition and
Results of Operations  of Orion," "Pro Forma  Condensed  Consolidated  Financial
Statements" and the Consolidated Financial Statements and Notes thereto.

<TABLE>
<CAPTION>
                                                                                                   
                                                    YEAR ENDED DECEMBER 31,                        
                            -----------------------------------------------------------------------
                                                                                          1995 PRO 
                                1991        1992      1993 (1)      1994        1995      FORMA(2) 
                            ----------- ----------- ----------- ----------- ----------- -----------
<S>                         <C>         <C>         <C>         <C>         <C>         <C>        
Consolidated Statements of
  Operations Data:
Revenues....................$      648  $    1,403  $    2,006  $    3,415  $   22,284  $   22,284 
Interest expense............       456         180         133          61      24,738      50,637 
Net loss(3).................    (2,573)     (3,295)     (7,886)     (7,965)    (26,915)   (103,156)
Net loss per common share ..$    (0.35) $    (0.40) $    (0.85) $    (0.86) $    (3.07) $   (12.01)
Shares used in calculating 
  per share data(4)......... 7,318,147   8,232,548   9,266,445   9,272,166   9,103,505   9,376,719 
Ratio of earnings to fixed
  charges(5)................        --          --          --          --          --          -- 

Other Operating Data: ......
Number of customers.........         3           5          10          34         109             
Capital expenditures........$   44,036  $   78,429  $   44,130  $   51,103  $    9,060             
Customer contract backlog(6)$    4,572  $    9,402  $   18,185  $   39,122  $  120,612             
Points of Service(7)........           --                               57         151             
EBITDA (8)..................$   (1,852) $   (6,243) $   (9,069) $  (14,014) $  (15,427)            

</TABLE>

<TABLE>
<CAPTION>
                                                  NINE MONTHS                     
                                              ENDED SEPTEMBER 30,                 
                                         ------------------------                 
                                                                   1996 PRO       
                                             1995       1996       FORMA(2)       
                                         ----------- ----------- -----------      
<S>                                      <C>         <C>          <C>                                         
Consolidated Statements of                                                        
  Operations Data:                       $   13,947  $    30,016  $    30,016     
Revenues....................                 17,080       20,229       39,521     
Interest expense............                (19,985)     (19,807)     (67,263)    
Net loss(3).................             $    (2.42) $     (1.90) $     (6.46)    
Net loss per common share ..                                                      
Shares used in calculating                8,522,067   10,943,287   11,544,626     
  per share data(4).........                                                      
Ratio of earnings to fixed                      --            --           --     
  charges(5)................                                                      
                                                                                  
Other Operating Data: ......                     79          167                  
Number of customers.........             $    3,863  $    10,266                  
Capital expenditures........             $   94,890  $   134,320  $   123,000     
Customer contract backlog(6)                    124          304                  
Points of Service(7)........             $  (15,177) $       134                  
EBITDA (8)..................                                                      
</TABLE>
     
<TABLE>
<CAPTION>                                                                         
                                                                                                      AS OF SEPTEMBER 30, 1996
                                                                                                      ------------------------
                                                                                                                       PRO
                                                                                                          ACTUAL    FORMA(2)
                                                                                                        --------- ------------
<S>                               <C>       <C>       <C>       <C>       <C>                           <C>       <C>
Consolidated Balance Sheet
  Data:
Cash and cash equivalents ......  $ 26,507  $  7,668  $  3,404  $ 11,219  $ 55,112                      $ 36,657  $122,339
Restricted cash(9)..............        --        --        --        --        --                            --    72,000
Total assets....................   106,712   204,975   271,522   340,176   389,075                       355,977   566,292
Long-term debt (less current
  portion)......................     1,073   106,821   185,294   230,175   250,669                       221,781   425,513
Limited Partners' interest in
  Orion Atlantic(10)............    77,683    77,753    69,909    62,519    14,626                        19,961        --
Redeemable preferred stock .....        --        --        --    14,555    20,358                        20,539   114,539
Total stockholders' equity
  (deficit).....................     2,559    14,478     8,400     3,351    26,681                         6,891       967
Book value per share ...........       .44      2.26      1.26       .49      2.46                           .63       .09
</TABLE>
- ----------
   
(1) In 1993,  Orion  Atlantic  terminated  its  commitment  to purchase a second
    satellite  from MMS Space Systems,  resulting in a termination  charge of $5
    million. See Note 3 to the Consolidated Financial Statements.
    
                                       124
<PAGE>
   
(2) Adjusted  to reflect  the pro forma  effects of the  Transactions  (see "Pro
    Forma Condensed  Consolidated Financial  Statements"),  assuming such events
    occurred, in the case of the Consolidated  Statements of Operations Data, on
    January 1, 1995 and, in the case of the Consolidated  Balance Sheet Data, on
    September 30, 1996.

(3) As required by GAAP, net loss is presented before the accretion of preferred
    stock and preferred stock dividends.  For the years ended December 31, 1991,
    1992,  1993,  1994,  1995 and 1995 (pro  forma)  and the nine  months  ended
    September  30, 1995,  1996 and 1996 (pro forma),  the accretion of preferred
    stock and  preferred  stock  dividends  are $0, $0, $0,  $.6  million,  $1.3
    million,  $9.8  million,  $1.0  million,  $1.0  million  and  $7.3  million,
    respectively. See Note 2 to the Consolidated Financial Statements.

(4) Computed on the basis  described  for net loss per common share in Note 2 to
    the Consolidated Financial Statements.

(5) For purposes of the ratio of earnings to fixed charges,  earnings consist of
    earnings  from  continuing  operations,  plus fixed  charges  reduced by the
    amount  of  unamortized  interest  capitalized.  Fixed  charges  consist  of
    interest on all indebtedness  (including commitment fees and amortization of
    deferred  financing  costs)  plus the portion of rent  expense  representing
    interest  (estimated to be one-third of such  expense).  For the years ended
    December  31, 1991,  1992,  1993,  1994 and 1995,  and the nine months ended
    September 30, 1995 and 1996, earnings were inadequate to cover fixed charges
    by $2.6 million, $8.8 million,  $24.0 million, $35.2 million, $28.2 million,
    $21.3 million and $19.8 million, respectively. On a pro forma basis assuming
    consummation of the Transactions, earnings would not have been sufficient to
    cover fixed  charges by $105.4  million and $70.5 million for the year ended
    December   31,  1995  and  the  nine  months  ended   September   30,  1996,
    respectively.  A 0.5%  increase in the assumed  interest  rates on the Notes
    would result in pro forma deficiencies of earnings to cover fixed charges of
    approximately  $107.1 million for the year ended December 31, 1995 and $71.8
    million for the nine months ended September 30, 1996.

(6) Backlog  represents  future  revenues under  contract.  See "Risk Factors --
    Risks Relating to Orion's Business -- Uncertainties Relating to Backlog."

(7) Points of  service  includes  installed  VSATs and  additional  transmission
    destinations (such as customer premises) that share a VSAT.

(8) "EBITDA"  represents  earnings before minority  interests,  interest income,
    interest expense, net of other expense (income),  income taxes, depreciation
    and amortization.  EBITDA is commonly used in the communications industry to
    analyze  companies  on the  basis of  operating  performance,  leverage  and
    liquidity. EBITDA is not intended to represent cash flows for the period and
    should not be considered  as an  alternative  to cash flows from  operating,
    investing or financing  activities as  determined  in accordance  with GAAP.
    EBITDA is not a  measurement  under GAAP and may not be  comparable to other
    similarly  titled  measures  of  other  companies.  Other  expense  (income)
    includes  gains  on sale of  equipment  less  costs  of $5  million  in 1993
    associated  with the  termination of the Company's  commitment to purchase a
    second  satellite and the write-off of costs  relating to the 1995 Financing
    of $3.4 million in the fourth quarter of 1995.

(9) Restricted  cash represents the estimated $72 million that will be placed in
    escrow on the closing date of the Notes  Offering to fund the payment of the
    first six  scheduled  payments of interest on the Senior  Notes.  The actual
    amount to be placed in escrow and reflected as  restricted  cash will depend
    on the interest  rate on the Senior Notes and interest  rates on  government
    securities on such closing date.

(10)Represents  amounts invested by Limited  Partners (net of syndication  costs
    related to the  investments),  adjusted for such Limited  Partners' share of
    net losses.  The  interests of the Limited  Partners will be acquired by the
    Company in the Exchange.
    
                                       125
<PAGE>
         MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
                      AND RESULTS OF OPERATIONS OF ORION

GENERAL

   Orion's principal  business is the provision of satellite  communications for
private  communications  networks  and video  distribution  and other  satellite
transmission services. From its inception in 1982 through January 20, 1995, when
Orion  1  commenced  commercial  operations,   Orion  was  a  development  stage
enterprise.  Prior to January 1995,  Orion's  efforts were devoted  primarily to
monitoring  the  construction,  launch and in-orbit  testing of Orion 1, product
development,  marketing  and sales of  interim  private  communications  network
services, raising financing and planning Orion 2 and Orion 3.

   OrionSat is the sole general partner in Orion Atlantic and Orion has a 41 2/3
% equity interest in Orion  Atlantic.  Orion will become the 100% owner of Orion
Atlantic upon consummation of the Exchange.

   As a result  of  Orion's  control  of Orion  Atlantic,  Orion's  consolidated
financial  statements  include  the  accounts  of Orion  Atlantic.  All of Orion
Atlantic's revenues and expenses are included in Orion's consolidated  financial
statements,  with appropriate adjustment to reflect the interests of the Limited
Partners  in Orion  Atlantic's  losses  prior to the  Exchange.  The  assets and
liabilities  reported in the consolidated  balance sheets at September 30, 1996,
December 31, 1995 and December 31, 1994 primarily pertain to Orion Atlantic.

OVERVIEW

   Orion's revenues are principally generated under three to four year contracts
for delivery of  communications  services.  Such revenues,  substantially all of
which are  generated  through  Orion  Atlantic,  are  derived  principally  from
recurring  monthly fees from its  customers,  although  many  contracts  include
initial  non-recurring  installation  and other fees. These  non-recurring  fees
generally are structured to cover the Company's  actual costs of installation of
the  customer's  site-based  equipment.  The revenues from each  contract  vary,
depending upon the type of service, amount of capacity, data handling ability of
the  network,  the  number  of VSATs  (which  generally  are  owned  by  Orion),
value-added  services  and other  factors.  Depending on the  complexity  of the
services to be provided to a customer,  the period between the date of signature
of a contract  and the  commencement  of actual  services  (and receipt of fees)
typically  ranges  from 30  days to six  months.  Substantially  all of  Orion's
contracts  are  denominated  in  U.S.  dollars,   although  some  contracts  are
denominated  in pounds  sterling,  deutschemarks,  Austrian  shillings or French
francs.  See "Risk  Factors -- Risks  Relating  to Orion's  Business -- Risks of
Conducting  International  Business."  Orion begins to record revenues under its
contracts upon service commencement to the customer.

   
   The services  provided by Orion have been subject to  decreasing  prices over
recent  years  and this  pricing  pressure  is  expected  to  continue  (and may
accelerate) for the foreseeable future,  particularly if, as expected,  capacity
continues to increase.  Orion will need to increase its volume of sales in order
to compensate  for such price  reductions.  Orion  believes that  customers will
increase  the data  speeds  in their  communications  networks  to  support  new
applications,  and  that  such  upgrading  of  customer  networks  will  lead to
increased revenues that will mitigate the effect of price reductions.  See "Risk
Factors -- Risks Relating to Orion's  Business -- Potential  Adverse  Effects of
Competition."  Orion  expects to  continue  to incur  increasing  net losses and
negative cash flow (after  payments for capital  expenditures  and interest) for
the foreseeable future.
    

   Orion's direct cost of services  includes  principally  (i) costs relating to
the  installation,  maintenance  and  licensing  of VSAT earth  stations  at its
customers'  premises;  (ii) satellite  lease payments for  transponder  capacity
(generally for services outside of the Orion 1 footprint);  and (iii) associated
miscellaneous expenses.  Sales and marketing expenses consist of salaries, sales
commissions (including commissions to third party sales representatives), travel
and  promotional  expenses.  The Company has  recently  commenced a  significant
expansion  of its  marketing  program  and expects to  continue  this  expansion
through 1997. Due to the complexity of the Company's services,  and the expected
turnover of
                                       126
<PAGE>
new sales  personnel,  sales and  marketing  expense  is  expected  to  increase
significantly  during  1997.  Engineering  and  technical  expenses,  consisting
principally of personnel costs and travel,  relate to TT&C, network  monitoring,
network  design  and  similar  activities.  The  Company  constructed  its  TT&C
facilities to control two  satellites.  As a result,  the Company  anticipates a
slight increase in costs with Orion 2 and a more  substantial  increase in costs
with  Orion  3,  which  will  require  separate  TT&C  facilities.  General  and
administrative expenses consist of in-orbit insurance premiums,  personnel costs
other  than for  selling  and  engineering,  information  systems,  professional
services,  and  occupancy  costs.  These costs will  increase  generally  as the
Company's  operations  expand.  Specifically,   in-orbit  insurance  costs  will
increase  significantly   following  the  launches  of  Orion  2  and  Orion  3.
Depreciation  and  amortization  expenses result mainly from the depreciation of
the Orion 1 satellite,  VSATs and the related equipment to service the expansion
of the private network communication  services business (see Note 2 of the Notes
to Consolidated  Financial Statements) and will increase substantially after the
launch  of Orion 2 and  Orion 3.  Interest  income is  primarily  the  result of
interest  earned  on  the  proceeds  from  Orion's  private  and  public  equity
offerings.  Interest costs will increase  substantially as a result of the Notes
Offering and will  increase  again after  additional  financing  for Orion 2 and
Orion 3 is obtained.  Interest  expenses  are  associated  with  Orion's  credit
facilities used to fund the  construction  and launch of Orion 1 and the related
tracking,  telemetry  and  control  facility.  Such  financing  will be required
substantially  in advance of the  anticipated  revenues from Orion 2 or Orion 3.
Orion's costs (other than sales commissions) generally do not vary substantially
with the amount of revenue from the Orion 1 satellite.

RESULTS OF OPERATIONS

NINE MONTHS ENDED SEPTEMBER 30, 1996 COMPARED TO THE NINE MONTHS ENDED SEPTEMBER
30, 1995

   Revenue. Total revenue for the nine months ended September 30, 1996 was $30.0
million,  compared to $13.9  million for the same period in 1995, an increase of
116%,   resulting  from  increased  volume  of  sales.   Revenues  from  private
communications  network services were $11.6 million for the first nine months of
1996 compared to $4.8 million for the  comparable  period in 1995, as the number
of points of  service  increased  to 304 as of  September  30,  1996 from 124 at
September  30,  1995.  Revenues  from  video  distribution  and other  satellite
transmission  services  were $18.2  million  for the first  nine  months of 1996
compared  to  $8.4  million  for the  same  period  in  1995,  resulting  from a
substantial increase in customers for these services in 1996.

OPERATING EXPENSES

   Direct  expenses.  Direct  expenses for the nine months ended  September  30,
1996,  were $4.3 million  compared to $10.0 million for the same period in 1995.
The decrease of $5.7 million, or 57%, was primarily attributable to accruals for
satellite incentive  obligations owed by Orion to the contractor under the Orion
1 Satellite Contract during the initial satellite deployment period from January
20, 1995 through June 30, 1995. The Company capitalized the present value of the
remaining  satellite  incentive   obligation  of  approximately  $14.8  million,
effective  July 1, 1995, as part of the cost of the  satellite.  As of September
30, 1996,  Orion had  obligations  with a present value of  approximately  $21.7
million with respect to satellite incentives.

   Sales and marketing expenses.  Sales and marketing expenses were $7.8 million
for the nine months ended September 30, 1996, as compared to $5.9 million in the
same  period  of  1995.  The  increase  of  $1.9  million,  or 32% is  primarily
attributable to sales  commissions,  third party sales  representative  fees and
ground operator fees  associated  with the growth in the private  communications
network service business.

   Engineering and technical  expenses.  Engineering and technical expenses were
$6.3 million in the nine months ended  September  30, 1996,  as compared to $6.0
million for the  comparable  period in 1995.  The  increase  was due to customer
engineering functions in support of network services.

   General and administrative expenses. General and administrative expenses were
$11.5  million for the nine months ended  September  30, 1996,  compared to $7.2
million for the period ended  September 30, 1995.  The increase of $4.3 million,
or 60%, for the nine months ended September 30, 1996 was
                                       127
<PAGE>
primarily due to the  inclusion of the cost of in-orbit  life  insurance for the
entire period during 1996. The policy became effective in May 1995.

   Depreciation and amortization.  Depreciation and amortization expense for the
nine months  ended  September  30, 1996 was $26.4  million,  an increase of $4.1
million,  or 18%,  over the same period in 1995.  The  increase  is  primarily a
result from  depreciation  of VSATs and other  ground  equipment  to service the
expansion  of  the  private   network   communication   services   business  and
depreciation  of the Orion 1 satellite  which was placed in service  January 20,
1995.

   Interest.  Interest  income  was  $1.8  million  for the  nine  months  ended
September 30, 1996, compared to $1.1 million for the nine months ended September
30, 1995. The increase in interest income ($0.7 million or 64%) during the first
three quarters of 1996 is primarily a result of interest  earned on the proceeds
from the Company's initial public offering in August 1995. Interest expense, net
of capitalized  interest,  was $20.2 million for the nine months ended September
30,  1996,  compared to $17.1  million for the  comparable  period in 1995.  The
increase in interest expense of $3.1 million in the first three quarters of 1996
is attributable  to expensing  interest  (including  commitment  fees,  interest
accretion  associated  with  the  Orion 1  satellite  incentive  obligation  and
amortization  of deferred  financing  costs) from the in-service date of Orion 1
and the  impact  of an  interest  rate  cap  agreement  in  1996.  Prior  to the
in-service date of Orion 1,  substantially all interest expense was capitalized.
Interest expense will substantially increase as a result of the Notes Offering.

   Net Loss. The Company incurred a net loss of $19.8 million, compared to a net
loss of $20.0  million for the nine months  ended  September  30, 1996 and 1995,
respectively,  after deduction of the limited partners' and minority  interests'
share in the Company's  losses before  minority  interests' of $24.8 million and
$33.4 million,  respectively.  Net loss is expected to increase substantially in
subsequent  periods as a result of interest expense on the Notes and elimination
of the minority interests in Orion Atlantic.

YEAR ENDED DECEMBER 31, 1995 COMPARED TO THE YEAR ENDED DECEMBER 31, 1994

   Revenue. Services revenue for 1995 was $22.3 million compared to $3.4 million
for 1994.  Revenues  from private  communications  network  services  were $10.0
million from 72 customers in 1995 and $3.4 million from 18 customers in 1994, as
the  number  of sites  in  service  increased  to 143  from  53.  Revenues  from
transmission  capacity and video distribution services were $12.3 million during
1995.  There  were no  revenues  from these  services  during  1994,  as Orion 1
commenced operations on January 20, 1995.

OPERATING EXPENSES

   Direct expenses.  Direct expenses were $10.5 million and $3.5 million in 1995
and 1994,  respectively.  The increase of $7.0 million,  or 199%,  was primarily
attributable to accruals for satellite  incentives  during 1995,  which were not
applicable  prior to launch in November 1994,  costs  associated  with equipment
sales ($2.5 million in 1995, $0 in 1994), and installation and maintenance costs
in connection  with higher  volumes of customer  sites placed in service  during
1995  ($1.3  million  in 1995,  $0.5  million  in 1994).  These  increases  were
partially  offset  by a  reduction  in  leased  transponder  capacity  costs  as
customers were  transferred  from leased capacity to Orion 1. No equipment sales
occurred during 1994.

   Sales and marketing expenses.  Sales and marketing expenses were $8.6 million
in 1995,  as compared to $5.9  million in 1994,  an increase of $2.7  million or
47%. The increase is due to the hiring of additional sales personnel,  increased
advertising and promotion expenses associated with increased sales and equipment
sales commissions.

   Engineering and technical  expenses.  Engineering and technical expenses were
$8.5 million in 1995,  as compared to $3.0 million for 1994, an increase of $5.5
million or  approximately  184%.  The  increase  is  attributable  to  increased
staffing  requirements  related to control and operation of the  satellite,  and
customer  engineering  functions  in support  of the  expansion  of the  network
services business.

   General and administrative expenses. General and administrative expenses were
$10.1 million for 1995  compared to $5.1 million for 1994.  The increase of $5.0
million or 99% was primarily due to the cost of in-orbit  insurance for Orion 1,
beginning in May 1995, and other costs  associated with Orion's  commencement of
full commercial operations.
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<PAGE>
   Depreciation  and  amortization.  Depreciation  and  amortization  was  $31.4
million in 1995, an increase of $29.7  million,  as compared to $1.7 million for
1994. The increase  primarily  resulted from the commencement of depreciation of
Orion 1 upon being placed in service January 20, 1995.

   Interest. Interest income was $1.9 million for 1995, compared to $0.4 million
for the prior year.  The increase in interest  income during 1995 is primarily a
result of interest  earned on proceeds from Orion's  initial public  offering in
August 1995. Interest expense, net of capitalized interest, increased from $0.06
million for 1994 to $24.7 million for 1995. The increase in interest  expense in
1995 is  attributable  to  expensing  interest  (including  commitment  fees and
amortization of deferred  financing  costs) from the in-service date of Orion 1.
Prior to that date,  substantially  all interest expense was capitalized as part
of the cost of Orion 1.

   Other.  Other expenses of $3.4 million for the  year-ended  December 31, 1995
are  primarily  related to costs  incurred in connection  with Orion  Atlantic's
plans to raise  financing  for Orion 2, which  plans were  deferred  in November
1995.

   Net loss.  The Company  incurred a net loss of $26.9 million and $8.0 million
for 1995 and 1994,  respectively,  after deduction of the Limited  Partners' and
minority  interests'  share in the  Company's  results  of  operations  of $46.1
million and $7.4 million, respectively.

YEAR ENDED DECEMBER 31, 1994 COMPARED TO YEAR ENDED DECEMBER 31, 1993

   Revenue.  Services  revenue  for the year ended  December  31,  1994 was $3.4
million  compared to $2.0  million for the year ended  December  31,  1993.  The
increased  revenue  reflects  an  increase  in the  number  of  private  network
customers from 12 in 1993 to 18 in 1994.

OPERATING EXPENSES

   Direct  expenses.  Direct  expenses were $3.5 million and $2.6 million in the
years ended December 31, 1994 and 1993, respectively.  Direct expenses increased
$0.9 million or 32% which was primarily  attributable  to the increased  revenue
generated by private network services.

   Sales and marketing expenses.  Sales and marketing expenses were $5.9 million
in the year  ended  December  31,  1994,  as  compared  to $1.9  million in 1993
primarily  due to the Company's  increased  selling  efforts in private  network
services.

   Engineering and technical  expenses.  Engineering and technical expenses were
$3.0 million in the year ended  December  31, 1994,  as compared to $1.8 million
for the year  ended  December  31,  1993.  Engineering  and  technical  services
increased  $1.2 million due to the  increased  support  requirements  of private
network services.

   General and administrative expenses. General and administrative expenses were
$5.1 million for the year ended  December 31, 1994 compared to $4.7 for the year
ended  December 31, 1993.  Orion  Atlantic  entered into  interest  rate hedging
arrangements  which fixed the maximum  interest  rate through  November  1995 at
11.54%. Thereafter, an interest cap agreement is in place relating to a notional
amount  declining  every nine months from $150  million  effective  November 30,
1993. General and administrative expenses increased $0.4 million principally due
to the  increased  staffing  requirements  of the Company's  management  team in
anticipation of higher operating levels.

   Interest.  During the year ended  December 31,  1994,  Orion  incurred  $27.0
million  of  interest  costs  (including  commitment  fees and  amortization  of
deferred  financing costs) compared to $16.3 for the comparable  period in 1993,
substantially  all of  which  was  capitalized.  The  increase  in  interest  is
attributable to additional borrowings related to the construction of Orion 1 and
subordinated borrowings beginning in late 1993 from the Limited Partners to fund
the development of the Orion Atlantic network services business.

   Other.  Other income was $0.05  million in the year ended  December 31, 1994,
compared to expense of $4.9 million for the year ended  December  31, 1993.  The
increase  in other  income is  related to the April  1993  termination  by Orion
Atlantic of its commitment to purchase a second satellite from Space
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<PAGE>
Systems (due to a reassessment of the satellite design and target markets) which
resulted  in the  forfeiture  of $5.0  million  which  was  then  expensed  as a
termination charge.

   Net loss.  The Company  incurred  net losses of $8.0 million and $7.9 million
for the years ended December 31, 1994 and 1993,  respectively,  after  deducting
the  Limited  Partners'  and  minority  interests'  share in Orion's  results of
operations of $7.4 million and $7.8 million, respectively.

LIQUIDITY AND CAPITAL RESOURCES

   Funding to date.  Orion has required  significant  capital for  operating and
investing  activities  in  the  development  of  its  business,  and  will  need
significant  additional  capital  in the  future to  develop  fully  its  global
satellite  communications  system.  The  Company's  funding  has  been  provided
primarily by the sale of equity  securities,  including  the  completion  of its
initial public offering in August 1995 which  generated  proceeds to the Company
of approximately $52 million (net of underwriting discounts), bank loans, vendor
financing,  lease  arrangements and short-term  loans from its investors.  As of
September 30, 1996,  Orion had a working capital  deficiency of $5.7 million and
the net cash used in operations for the nine months ended September 30, 1995 and
1996, was $30.4 million and $25.0 million, respectively.

   Funding for the  construction and launch of the Orion 1 satellite and related
facilities  was fully  committed  through $90 million of equity from the limited
partners of Orion  Atlantic,  an  aggregate  of $251  million  under the Orion 1
Credit  Facility  and  approximately  $11 million  under other debt  facilities,
dedicated  primarily to the  construction  of the TT&C facility,  which is being
used to control Orion 1.

   Amounts  outstanding under the Orion 1 Credit Facility bear interest at 1.75%
over the LIBOR rate (7.68% at December  31,  1995).  Orion  Atlantic has entered
into agreements with Chase Manhattan  Bank,(National  Association) ("Chase") for
interest rate hedging arrangements which fixed the maximum interest rate through
November 1995 at 11.54%.  Thereafter a self funding  interest rate cap agreement
is in place relating to a notional  amount  declining every six months from $150
million  effective  November 30, 1995 to $15.6 million effective March 31, 2001.
Under the terms of the cap agreement,  when LIBOR equals or exceeds 5.5%,  Orion
Atlantic  pays  Chase a fee equal to 3.3% per annum of the  notional  amount and
receives a payment from Chase in an amount equal to the  difference  between the
actual LIBOR rate and 5.5% on the notional amount.  There was an unrealized loss
on this cap as of  September  30, 1996 of  approximately  $5.9  million.  On the
closing date of the Notes  Offering,  the Company will pay its then  outstanding
obligation  under  this  facility,  including  costs to break the  interest  cap
agreement.

   In the event of a  deficiency  in cash flow  required  to service the Orion 1
Credit Facility, the Limited Partners of Orion Atlantic,  including the Company,
would be obligated to make additional  payments toward such deficiency under the
terms  of  their  contingent  satellite  capacity  commitment  agreements.  Such
agreements would be terminated as a result of the Exchange.

   Existing  Obligations.  The  following is a description  of Orion's  existing
obligations,  a substantial portion of which are to be paid with the proceeds of
the Notes Offering;  however,  no assurance can be given that the Notes Offering
will be completed.

   Orion  Atlantic  began  repayment  of the term loans under the Orion 1 Credit
Facility  in  1995.   Sales  of  services  to  customers  and  certain  capacity
commitments  of the Limited  Partners  are  expected to provide the cash to meet
Orion Atlantic's loan repayment  obligations.  The Company and the other Limited
Partners of Orion  Atlantic have agreed to lease capacity on Orion 1, subject to
obligations  of Orion  Atlantic under the refund  agreement  (defined  below) to
refund lease  payments,  and have entered into  additional  contingent  capacity
lease  contracts  as  support  for  payment  of the  senior  bank  debt of Orion
Atlantic.  The Company's  obligations  under these firm and contingent  capacity
arrangements are $2.5 million and $4.3 million, respectively, per year for seven
years,  and the Company is obligated to indemnify STET (a former limited partner
whose  partnership  interest in Orion Atlantic was purchased by Orion  Atlantic)
against  certain  payments made by STET under its firm and  contingent  capacity
leases.  This indemnity could increase  Orion's  obligations to make payments in
the event of cash deficits of Orion Atlantic to $8.6 million per year, and could
require Orion for a term of four years commenc-
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<PAGE>
ing in January 1998 to make  payments to Orion  Atlantic of up to  approximately
$2.5  million  per year.  The Company  maintains a $10 million  letter of credit
supporting this indemnification obligation.

   
   Amounts outstanding under the Orion 1 Credit Facility  (approximately  $210.4
million, including interest, as of September 30, 1996) are secured by the assets
of Orion Atlantic,  the partnership  interests of the partners in Orion Atlantic
and the stock of OrionSat,  and are due in graduated  installments through 2002.
Among other customary  covenants and  requirements,  the Orion 1 Credit Facility
includes  significant  restrictions on the  distribution of any funds from Orion
Atlantic to the partners.  Distributions  can only be made if Orion Atlantic has
sufficient revenues to cover operating costs and debt service.  Orion's capacity
commitments  and the Orion 1 Credit  Facility are required to be  refinanced  in
connection  with  the  Exchange.  See "The  Related  Transactions  -- The  Notes
Offering/Orion 1 Credit Facility Refinancing." 
    

   At  September  30,  1996,  the  Company  had   outstanding   indebtedness  of
approximately  $7.2  million  under a seven year term loan  provided  by General
Electric Capital Corporation ("GECC") for the TT&C facility, which is secured by
the  TT&C  facility  and  various  assets  relating  thereto.  Additionally,  at
September 30, 1996,  the Company had  obligations  with a present value of $21.7
million, which are payable to the manufacturer of Orion 1 through 2006 (of which
$13 million will be paid in cash on the Closing Date,  $10 million of which will
be reinvested in the  Debentures),  and $8.0 million payable to a former partner
in Orion Atlantic through 1997. Of this $8.0 million, approximately $3.5 million
(plus  interest of  approximately  $500,000 as of January 30, 1997) will be paid
with proceeds of the Notes Offering. Also at September 30, 1996, the Company had
outstanding  approximately $8.1 million of subordinated debt under a facility of
up to $10.5 million from certain  Limited  Partners  (excluding the Company) for
Orion  Atlantic's  network  services.  See  Note  5  to  Consolidated  Financial
Statements for additional  discussion of Orion's  long-term debt.  Orion will be
acquiring the Limited Partners' interests in such obligations in the Exchange.

   
   Current Funding  Requirements.  The Company will need a substantial amount of
capital over the next three years (and possibly thereafter) to fund the costs of
Orion 2 and Orion 3, the purchase of VSATs and other capital expenditures and to
make various  other  payments,  such as principal  and  interest  payments  with
respect to the TT&C Financing,  and any indebtedness incurred to finance Orion 2
or Orion 3. The Company's cash flows will be inadequate to cover its cash needs,
and the Company will seek financing from outside  sources.  The Company does not
have a revolving credit facility or other source of readily  available  capital.
Sources of  additional  capital  may  include  public or private  debt or equity
financings.  The Company is often involved in discussions or  negotiations  with
respect to such potential  financings and,  because of its  substantial  capital
needs,  may consummate any such financing at any time. The Company has commenced
construction  of  Orion  3 and  intends  to  commence  construction  of  Orion 2
immediately after  consummation of the Notes Offering,  despite the fact that it
does not have any commitment  from any outside source to provide such financing.
If the Company is unable to obtain financing from outside sources in the amounts
and at the times needed,  it could forfeit  payments made on Orion 2 and Orion 3
and its rights to Orion 2 and Orion 3 under the Orion 2 Satellite  Contract  and
Orion 3 Satellite  Contract and there would be a material  adverse effect on the
Company's ability to make payments on the Notes and the value of the Orion Newco
Common Stock.

   Expected  payments  prior to launch under the Orion 2 Satellite  Contract and
Orion 3  Satellite  Contract  and for launch  insurance  for Orion 2 and Orion 3
aggregate  approximately $500 million. In addition to the $3 million paid in the
fourth quarter of 1996,  Orion will need to make payments of  approximately  $98
million,  $350  million  and $50 million in 1997,  1998 and 1999,  respectively.
These  amounts  include  the  Company's  estimate  regarding  the cost of launch
insurance (but not in-orbit  insurance,  which the Company  presently  estimates
will cost  approximately  $5  million to $6  million  per annum per  satellite),
although the Company has not had material  discussions  with potential  insurers
and has not received any commitment to provide  insurance.  The Company's actual
payments  could  be  substantially  higher  due to any  change  orders  for  the
satellites,  insurance rates, delays and other factors. In addition, the Company
expects to expend  approximately  $22  million,  $30  million and $34 million on
VSATs and other capital expenditures in 1997, 1998 and 1999,  respectively.  The
Company  believes  these VSAT and other  capital  expenditures  can be  financed
through capital leases or other secured financing arrange- 
    
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<PAGE>
ments.  However,  the  Company  has not  engaged in  material  discussions  with
potential  lenders  and there can be no  assurance  that such  financing  can be
obtained.

   
   Under the Orion 1 Satellite  Contract,  the contractor is entitled to receive
incentive  payments  based  upon  the  performance  of Orion 1 in  orbit.  These
incentive payments could reach an aggregate of approximately $44 million through
2007,  if the  transponders  on Orion 1 continue to operate in  accordance  with
specification   during  that  period.  As  of  September  30,  1996,  Orion  had
obligations with a present value of approximately  $21.7 million with respect to
incentive payments. Orion will pay $13 million in satellite incentives following
completion of the Notes  Offering,  of which $10 million will be  re-invested in
Debentures of Orion Newco in the Matra Marconi Investment.

   The  foregoing  estimates  do not  include  any  amounts  for other  possible
financing  requirements.  The  Company  may from time to time  enter  into joint
ventures and make acquisitions of complementary  businesses and is often engaged
in discussions or negotiations  with regard to such potential joint ventures and
acquisitions.  Such joint  ventures or  acquisitions  would need to be financed,
which would  increase the Company's need for  additional  capital.  In addition,
Orion intends to replace  Orion 1 at the end of its useful life  (expected to be
in October 2005). Such replacement likely will require  additional  financing if
the cash flow from Orion's  operations  is not  sufficient to fund a replacement
satellite.  See "Risk Factors -- Risks Relating to Orion's  Business  --Need for
Substantial  Additional  Capital" and " -- Launch of Orion 2 and Orion 3 Subject
to Significant  Uncertainties -- Substantial  Financing  Requirements;  Risks of
Commencing Construction Prior to Completing Financing." 
    

   As of September 30, 1996, after giving pro forma effect to the  Transactions,
Orion would have had approximately $426 million of long-term  indebtedness.  The
accretion of original issue discount,  if any, on the Senior Discount Notes will
increase  the  amount of  Orion's  indebtedness.  As  indicated  above,  Orion's
financing plan requires a total of $480 million of additional financing to fully
fund  the  construction,  launch  and  insurance  of  Orion  2 and  Orion  3 and
associated  financing and start-up  costs,  and Orion  presently  expects that a
significant  portion  of  such  additional  financing  will  be in the  form  of
additional  indebtedness.  Such additional  indebtedness  would increase Orion's
long-term indebtedness.  See "Risk Factors -- Risks Relating to Orion's Business
- --Substantial Leverage; Secured Indebtedness."

   The level of the Company's  indebtedness could have important consequences to
its  stockholders,  including the  following:  (i) the ability of the Company to
obtain  any  necessary  financing  in the future for  working  capital,  capital
expenditures, debt service requirements or other purposes may be limited; (ii) a
substantial portion of the Company's cash flow from operations,  if any, must be
dedicated to the payment of principal  of and interest on its  indebtedness  and
other  obligations  and will not be  available  for  other  purposes;  (iii) the
Company's level of indebtedness  could limit its flexibility in planning for, or
reacting  to changes  in, its  business;  (iv) the  Company  will be more highly
leveraged  than some of its  competitors,  which  may place it at a  competitive
disadvantage;  and (v) the Company's  high degree of  indebtedness  will make it
more  vulnerable to a default and the  consequences  thereof (such as bankruptcy
workout) in the event of a downturn in its business.

   
   Because of its substantial needs for additional financing,  Orion may attempt
to raise  additional  funds  substantially  earlier  than the date it needs such
funds,  depending on the  conditions  of the capital  markets from time to time,
including  during 1997.  If the Merger and the Exchange are  consummated,  Orion
will be entitled to incur additional  indebtedness at any time,  including prior
to the date such funds are needed,  without  obtaining  any further  stockholder
approval. If Orion raises such funds prior to the date such funds are needed, it
will (in addition to the risks and costs  associated  with  increased  leverage)
incur substantial  interest cost for periods when such funds are not deployed in
its business.
    

TAXES

   As of December 31,  1995,  Orion had net  operating  loss  carryforwards  for
federal tax purposes of  approximately  $51.2  million.  The ability of Orion to
benefit from net operating losses for federal income tax purposes will depend on
a number of factors, including whether Orion has sufficient income from which to
deduct  the  losses,  limitations  that may arise as a result of  changes in the
ownership of Orion,
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<PAGE>
   
including as a result of the Transactions  and other factors,  and certain other
limitations which may significantly  reduce the economic benefit of those losses
to Orion.  Due to  uncertainty  regarding its ability to realize the benefits of
such net operating loss  carryforwards,  the Company has established a valuation
allowance  for the full  amount  of its net  operating  loss  carryforwards.  Of
Orion's net operating losses,  approximately $31.2 million was incurred by Orion
Atlantic and allocated to Orion.  Orion  Atlantic is structured as a partnership
for U.S.  income tax purposes.  As a result,  Orion  Atlantic  itself  generally
should not be subject to federal income taxation. Instead, the partners of Orion
Atlantic,  including Orion and OrionSat,  will separately report their allocable
shares of Orion Atlantic's net income, loss, gain,  deductions,  and credits, as
determined under the allocation provisions of the Partnership  Agreement.  Orion
Atlantic  may,  however,  be subject to income tax on a portion of its income in
certain  states  and  other  countries  in which it has  operations.  Under  the
Partnership  Agreement,  the first $20  million of any losses was  allocated  to
OrionSat,  and any losses in excess of that amount generally have been allocated
to the partners, including Orion and OrionSat, in proportion to their respective
percentage  interests.  Subsequent to consummation  of the Exchange,  all losses
will be allocated to Orion. 
    

EFFECT OF INFLATION

   Orion believes that inflation has not had a material effect on the results of
operations to date.

EFFECT OF RECENTLY ISSUED FINANCIAL ACCOUNTING STANDARDS

   In  March  1995,  the FASB  issued  Statement  No.  121,  Accounting  for the
Impairment of  Long-Lived  Assets and for  Long-Lived  Assets to be Disposed Of,
which  requires  impairment  losses to be recorded on long-lived  assets used in
operations when indicators of impairment are present and the  undiscounted  cash
flows  estimated  to be  generated  by those  assets  are less than the  assets'
carrying amount.  Statement No. 121 also addresses the accounting for long-lived
assets that are expected to be disposed of. Orion  adopted  Statement No. 121 in
the first  quarter  of 1996.  The effect of  adoption  was not  material  to its
financial condition or results of operations.

   In October  1995,  the FASB issued  Statement No. 123,  Accounting  for Stock
Based  Compensation,  which is effective for awards after January 1, 1996. Orion
has elected to continue to follow  Accounting  Principles  Board Opinion No. 25,
"Accounting for Stock Issued to Employees" (APB 25) and related  Interpretations
in  accounting  for  its  employee  stock  based  award  programs,  because  the
alternative  fair value  accounting  provided for under FASB  Statement  No. 123
requires  use of option  valuation  models  that were not  developed  for use in
valuing  employee  stock  options.  Under APB 25, when the exercise price of the
employee  award equals the market price of the  underlying  stock on the date of
grant, as has been the case  historically  with Orion's awards,  no compensation
expense is recognized.
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<PAGE>
            PRICE RANGE OF ORION COMMON STOCK AND DIVIDEND POLICY

   Since completion of Orion's initial public offering in August 1995, the Orion
Common  Stock has been quoted on the Nasdaq  National  Market  under the trading
symbol  "ONSI."  As  of  December  15,  1996,  there  were   approximately   350
stockholders of record of Orion Common Stock. The following table summarizes the
high and low closing sale prices of the Orion Common Stock by fiscal quarter for
1995, 1996 and 1997 as reported on the Nasdaq National Market.

                       QUARTER ENDED:                  1995
                --------------------------------- -------------
                                   
              August 1 through September 30 ... $10 3/4 TO $14 1/4
              December 3.......................     16 3/4 to 12

                       QUARTER ENDED:                  1996
                --------------------------------- -------------
                   
              March 31........................  $8 1/4 TO $14 3/4
              June 30.........................   10 1/4 to 14 1/4
              September 30....................    7 1/4 to 12 1/8
              December 31 ....................    9 1/2 to 12 7/8

                       QUARTER ENDED:                  1997
                --------------------------------- -------------
               March 31 (through January 14)...... $12 1/2 to $15


   On December 13, 1996, the date preceding  public  announcement  of the Merger
Transactions,  the last  reported  sale  price of the  Orion  Common  Stock,  as
reported on the Nasdaq National Market, was $12 5/8 .

   Orion has never paid any cash  dividends  on the Orion  Common  Stock and the
Board of Directors of Orion currently does not anticipate  paying cash dividends
in the  foreseeable  future on shares of Orion  Common  Stock.  The terms of the
Orion 1 Credit Facility,  which regulate cash  distributions to Orion Atlantic's
partners, including Orion, and agreements relating to the Orion Senior Preferred
Stock limit Orion's ability to pay cash dividends on the Orion Common Stock. The
Notes  Indentures are expected to contain  covenants  restricting the payment of
cash  dividends  by Orion Newco for the  foreseeable  future.  See "The  Related
Transactions -- The Notes  Offering/Orion 1 Credit Facility Refinancing -- Notes
Offering."
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<PAGE>
                             CERTAIN TRANSACTIONS

   The following is a summary of certain  transactions  among Orion,  directors,
officers and certain stockholders of Orion, and related persons.  Orion believes
that each of such  transactions  was on terms no less  favorable  to Orion  than
reasonably   could  have  been  obtained  in  arm's-length   transactions   with
independent  third  parties.  Orion  has a policy  requiring  that any  material
transactions  between Orion and persons or entities  affiliated  with  officers,
directors or principal  stockholders  of Orion be on terms no less  favorable to
Orion than  reasonably  could be  obtained  in  arm's-length  transactions  with
independent third parties. Orion's policy is to conduct an appropriate review of
all related party  transactions  and to have the Audit Committee or a comparable
body review potential conflict of interest situations.

   Orion is a party to numerous agreements with one or more Exchanging Partners,
most of which were  entered into in December  1991,  including  the  partnership
agreement of Orion Atlantic,  firm and contingent capacity leases (most of which
will be  terminated  in  connection  with the  Exchange),  the Orion 1 Satellite
Contract, the Orion 2 Satellite Contract, agreements with STET or its affiliates
concerning the TT&C facility,  representative agent agreements and agreements to
make  loans  or  advances  to Orion  (which  will be  terminated  as part of the
Exchange).  See "The Merger,  the Exchange and the Debenture  Investments -- The
Exchange Agreement."

   Orion entered into the Orion 1 Satellite Contract with British Aerospace,  an
affiliate of a principal  stockholder of Orion and of which Mr. Rice, a director
of  Orion,  is a Group  Treasurer.  Under  the  terms of the  Orion 1  Satellite
Contract,  Orion has paid an aggregate of $43.4 million in 1991,  $72 million in
1992 (plus a $5 million  payment upon  termination for convenience by Orion of a
second  satellite),  $26 million in 1993, $89.8 million in 1994 and $0.3 million
in 1995. As of September 30, 1996, Orion Atlantic had obligations of $15 million
to Matra  Marconi  Space with  respect to incentive  payments  under the Orion 1
Satellite Contract, of which $13 million will be paid on the closing date of the
Exchange.  Of this  amount,  $10 million will be  re-invested  in Orion by Matra
Marconi Space in the Matra Marconi Investment. See "The Merger, the Exchange and
the  Debenture  Investments  -- The Debenture  Investments."  The balance of the
outstanding   obligations  are  payable  18  months  following  commencement  of
construction under the Orion 2 Satellite Contract, and subsequent payments of up
to  $29.4  million  may  become  payable  thereafter,   depending  on  satellite
performance.  See "Management's  Discussion and Analysis of Financial  Condition
and Results of Operations of Orion -- Liquidity and Capital Resources."

   Orion has engaged certain  Exchanging  Partners as representative  agents for
sales and ground  operations.  A joint venture  between two Exchanging  Partners
(Kingston  Communications  and British  Aerospace) serves as a ground operations
representative  in the United Kingdom,  and the affiliate of another  Exchanging
Partner (Matra Hachette) serves as a ground operations representative in France.
Orion expects to pay these  Exchanging  Partners an aggregate of $1.6 million in
1996 as commissions and other fees (including for ground  operations and, in the
case of the Kingston  Communications/British  Aerospace joint venture, satellite
capacity,  equipment  leasing  and other  charges),  and paid  these  Exchanging
Partners $1.9 million in 1995 and $1.9 million in 1994 for these  services.  See
"Information  About  Orion's  Business -- Sales and  Marketing"  and "-- Network
Operations; Local Ground Operators."

   In December  1991,  Orion  issued  259,515  shares of Orion Common Stock at a
value  of  $11.56  per  share  to  British  Aerospace  Space  Systems,  Inc.  in
consideration of British Aerospace Space Systems,  Inc.'s agreement to guarantee
Orion's  obligations  under  a $10  million  letter  of  credit  (see  Note 4 to
Consolidated Financial Statements).  The shares were reconveyed to Orion and are
held in  treasury  at a value of $0.  The shares are  pledged  as  security  for
British  Aerospace  Space  Systems,  Inc.  in the event it is  required  to fund
amounts  under its  guarantee  and Orion does not provide  reimbursement.  These
arrangements will be terminated upon the closing of the Transactions.

   In December 1993, Orion issued an aggregate of 178,097 shares of Orion Common
Stock as part of a private  placement  of Orion  Common  Stock to certain of its
directors and  affiliates of those  directors at a purchase  price of $10.20 per
share. The terms of such issuance permitted the purchas-
                                       135

<PAGE>
   
ers to  receive  the  benefit of any lower  price at which  Orion  Common  Stock
subsequently was issued in a private  placement or to receive any other security
subsequently  issued in a private  placement.  In June 1994,  when Orion  issued
shares of Orion  Common  Stock as part of a private  placement  of Orion  Common
Stock to a limited number of institutions and other investors  (including 64,705
shares to affiliates of directors) at a purchase price of $8.50 per share, Orion
issued  100,326  additional  shares to the directors and affiliates of Directors
who  purchased  Orion Common Stock in December  1993.  In addition,  after Orion
issued Orion Series A Preferred  Stock (along with  warrants and options to make
an additional investment) to CIBC, Fleet and Chisholm (each as defined below) in
June 1994, the directors and affiliates of directors who purchased  Orion Common
Stock in December  1993 each  exercised  their right to receive  Orion  Series A
Preferred  Stock  (along  with  warrants  and  options  to  make  an  additional
investment)  in exchange  for the Orion Common Stock  previously  acquired,  and
Orion  issued an aggregate of  $3,000,000  of Orion Series A Preferred  Stock to
such persons and entities.
    

   In April 1994,  Orion  entered  into an  agreement  with Space  Systems/Loral
("SS/L")  whereby SS/L agreed to purchase  588,235  shares of Orion Common Stock
for an aggregate purchase price of $5,000,000.

   
   In June  1994,  CIBC  Wood  Gundy  Ventures,  Inc.  ("CIBC"),  Fleet  Venture
Resources, Inc. ("Fleet") and Chisholm Partners, II, L.P. ("Chisholm") purchased
$11.5 million in Orion Series A Preferred  Stock. For a description of the Orion
Series A Preferred Stock, see "Description of Orion Newco Capital Stock -- Orion
Newco Preferred Stock." In connection with the transaction,  CIBC and Fleet each
were granted the right to elect one member of Orion's Board of Directors.  These
rights terminated as a result of the Company's initial public offering.
    

   In June 1994,  CIBC, Inc. (an affiliate of CIBC) became a $25,000,000  lender
under the Orion 1 Credit Facility.

   
   In June 1995, CIBC,  Fleet and certain  directors and affiliates of directors
who  purchased   Orion  Series  A  Preferred   Stock  in  June  1994   purchased
approximately  $4.2 million of Orion Series B Preferred Stock. This purchase was
pursuant to an option granted in June 1994.  The Orion Series B Preferred  Stock
has rights,  designations and preferences  substantially similar to those of the
Orion Series A Preferred Stock, and is subject to similar covenants, except that
the Orion Series B Preferred Stock is convertible  into Orion Common Stock at an
initial price of $10.20 per share, subject to certain anti-dilution adjustments.
For a description of the Orion Series B Preferred  Stock,  see  "Description  of
Orion Newco Capital Stock -- Orion Newco Preferred Stock.     

   In November 1995, Orion Atlantic  redeemed the limited  partnership  interest
previously  held by STET for an aggregate of  approximately  $11.5  million (the
"STET Redemption"),  including $3.5 million in cash and $8 million in promissory
notes,  $3.5 million (plus accrued interest of approximately  $400,000) of which
will  be  paid  on the  closing  date  of the  Exchange.  As  part  of the  STET
Redemption,  Telecom Italia, a subsidiary of STET, entered into a representative
agreement and distributor arrangement with Orion providing for sales, marketing,
customer support and ground operations  services in Italy. Orion Atlantic funded
the STET Redemption by selling a new limited  partnership  interest to Orion for
$8  million  (including  $3.5  million in cash and $4.5  million  in  promissory
notes), $3.5 million (plus accrued interest of approximately  $400,000) of which
will be paid on the closing date of the  Exchange).  Orion Atlantic also entered
into amendments to existing  contracts with STET that were expected to result in
a cash  savings by the Company of  approximately  $3.5  million  over a ten-year
period.  In  connection  with the STET  Redemption,  Orion  agreed to  indemnify
Telecom  Italia for payments  which would be made under its firm and  contingent
capacity agreements with Orion Atlantic.  Such indemnity will be discontinued on
the closing date of the Exchange.

   In July 1996,  Matra Marconi Space,  the parent company of MMS Space Systems,
the prime  contractor  for Orion 1, entered into the Orion 2 Satellite  Contract
with Orion  regarding  construction  of Orion 2, which  contract  was amended in
December  1996.  Certain  terms of the Orion 2 Satellite  Contract are described
above under the caption "Information About Orion's Business -- Implementation of
the  Orion  Satellite  System -- Orion 2."  Matra  Hachette,  one of the  parent
companies of Matra Marconi
                                       136
<PAGE>
Space,  will be a more than 5% beneficial  owner of Orion Common Stock after the
Exchange  and the  Merger.  See "The  Merger,  the  Exchange  and the  Debenture
Investments."

   
   Effective as of June 1996, Orion and the Exchanging Partners entered into the
Exchange  Agreement.  In December 1996 and January 1997, the Exchanging Partners
agreed to extend to April 30, 1997 the  termination  date for the Exchange.  See
"The  Merger,  the  Exchange  and  the  Debenture  Investments  -- The  Exchange
Agreement."

   Effective  as of January  13,  1997,  Orion,  Orion Newco and each of British
Aerospace and Matra Marconi Space entered into the Debenture Agreement.  The net
proceeds of the Debenture  Investments,  which will occur  concurrently with the
Notes Offering, are estimated to be approximately $59 million. Such net proceeds
are  expected to be used for initial  payments  to the  manufacturers  under the
Orion 2 Satellite Contract.


                          FORWARD-LOOKING STATEMENTS

   Information set forth in this Proxy  Statement/Prospectus  under the captions
"Risk Factors," "Management's Discussion and Analysis of Financial Condition and
Results  of  Operations  of Orion"  and  "Selected  Consolidated  Financial  and
Operational   Data  of  Orion"  and  under  other  captions   contains   various
"forward-looking statements" within the meaning of Section 27A of the Securities
Act and Section 21E of the  Exchange  Act.  Such  statements  represent  Orion's
reasonable  judgment  concerning  the  future  and  are  subject  to  risks  and
uncertainties  that could cause Orion's actual  operating  results and financial
position  to differ  materially.  Such  forward-looking  statements  include the
following:  Orion's belief that the Merger Transactions will enhance the ability
of the Company to raise  additional  financing;  Orion's belief that a change in
the  operational  structure of Orion  Atlantic  would reduce  certain  potential
conflicts of interest and operating concerns that may be inherent in the current
partnership  structure of Orion  Atlantic;  Orion's  projections  regarding  the
continuation of operating losses and net cash flow deficits;  Orion's belief and
the  judgments  of  its  independent  engineering  consultant,  Telesat  Canada,
regarding  the  expected  performance  of the Orion 1 satellite  over its useful
life,  and  the  effect  of  such  performance  on  Orion's  business;   Orion's
expectations  regarding  the period for  construction  and launch of Orion 2 and
Orion 3; Orion's belief that it can overcome  uncertainties  relating to Orion 2
and Orion 3; Orion's  expectations  regarding  receipt of regulatory  approvals,
coordination  of orbital slots and avoidance of possible  interference;  Orion's
beliefs regarding  existing and future regulatory  requirements,  its ability to
comply  with  such  requirements  and the  effect  of such  requirements  on its
business; Orion's beliefs regarding the competitive advantages of satellites and
of Orion's  satellites,  strategies and services in particular,  both in general
and as compared to other  providers  of services or  transmission  capacity  and
other services presently offered or which may be offered in the future;  Orion's
expectations  regarding  the  growth in  telecommunications  and the  demand for
telecommunications  services;  Orion's  beliefs  regarding  the  demand  for  or
attractiveness  of Orion's  services;  Orion's beliefs  regarding  technological
advances and their  effect on  telecommunications  services or demand  therefor;
Orion's  beliefs  regarding  availability  of net operating loss  carryforwards;
Orion's beliefs regarding its representatives  and distributors;  Orion's belief
regarding  transactions  or  existing  management  structures  being in the best
interests of Orion and its  stockholders;  the  description  of the Merger,  the
Exchange and the Debenture Investments under the caption "Certain  Transactions"
as being on terms no less  favorable  to Orion than  reasonably  could have been
obtained in arm's-length  transactions with independent  third parties;  Orion's
intention  not to pay any  cash  dividends  on the  Orion  Common  Stock  in the
foreseeable future;  Orion's belief that any liability that might be incurred by
Orion upon the resolution of certain  existing or future legal  proceedings  not
having a material  adverse  effect on the  consolidated  financial  condition or
results of operations of Orion; and the adoption of new accounting  releases not
being material to its financial condition or results of operations.

   Orion cautions that the above  statements are further  qualified by important
factors that could cause Orion's actual results to differ  materially from those
in the  forward-looking  statements.  Such factors include,  without limitation,
those set forth in this Proxy  Statement/Prospectus under "Risk Factors" and the
following:  the Merger, the Exchange and the Debenture Investments are dependent
on the Orion 1 Credit  Facility  Refinancing,  and there being no assurance that
these financings  or the Merger,  the Ex-
    
                                      137
<PAGE>
   
change and the Debenture Investments can be consummated; the terms of financings
not being  known and  there  being no  assurance  that  such  terms  will not be
unfavorable  to Orion;  there  being no  assurance  that Orion  will  obtain all
necessary  approvals  or waivers to implement  the Merger,  the Exchange and the
Debenture  Investments,  or  regarding  the  effect of  failure  to obtain  such
approvals  or waivers;  there being no assurance as to the effect of issuance of
Orion Newco Series C Preferred Stock on the market for Orion Newco Common Stock;
no  assurances  regarding  the  business  plan;  Orion's  history  of losses and
expectation  of future losses;  the  substantial  financial  risks and financing
requirements;  substantial  leverage  and  limits on  Orion's  ability  to raise
additional  funds;  risks of satellite  loss or reduced  performance;  launch of
Orion 2 and Orion 3 being subject to significant  uncertainties;  risks relating
to  Orion's  business  plan;  potential  adverse  effects  of  competition;   no
assurances  regarding  approvals  needed or current or future  regulation of the
telecommunications  industry;  no assurances  regarding  technological  changes;
risks  of  conducting  international  business;   dependence  of  Orion  on  key
personnel;  control of Orion Newco by principal stockholders;  risks relating to
senior preferred  stock;  limits on paying cash dividends on Orion Common Stock;
and anti-takeover and other provisions of the certificate of incorporation.  See
"Risk Factors."
    

                                  OTHER MATTERS

   The Board of  Directors  of Orion  does not know of any  matter to be brought
before the  Special  Meeting  other than as  described  in the Notice of Special
Meeting accompanying this Proxy Statement/Prospectus.  If any other matter comes
before the Special  Meeting,  it is the  intention  of the persons  named in the
accompanying proxy to vote the proxy in accordance with their best judgment with
respect to such other matter.

                                  LEGAL MATTERS

   Certain  legal  matters  with  respect  to the  Merger  Transactions  and the
securities offered hereby will be passed upon for Orion and Orion Newco by Hogan
& Hartson L.L.P., Washington, D.C.

                                     EXPERTS

   The  consolidated  financial  statements  of Orion Network  Systems,  Inc. at
December 31, 1995 and 1994,  and for each of the three years in the period ended
December 31, 1995,  included in the Proxy  Statement of Orion  Network  Systems,
Inc.,  which is referred to and made a part of this Prospectus and  Registration
Statement,  have been audited by Ernst & Young LLP, independent auditors, as set
forth in their report thereon appearing  elsewhere  herein,  and are included in
reliance  upon such report  given upon the  authority of such firm as experts in
accounting and auditing
                                       138
<PAGE>
                   INDEX TO CONSOLIDATED FINANCIAL STATEMENTS



                                                               PAGE
                                                               ----

Report of Independent Auditors...............................  F-2
Consolidated Financial Statements
 Consolidated Balance Sheets.................................  F-3
 Consolidated Statements of Operations.......................  F-4
 Consolidated Statements of Changes in Stockholders'.........  F-5
 Consolidated Statements of Cash Flows.......................  F-6
 Notes to Consolidated Financial Statements..................  F-7
                               F-1
<PAGE>
                         REPORT OF INDEPENDENT AUDITORS

The Board of Directors
Orion Network Systems, Inc.

   We have audited the accompanying consolidated balance sheets of Orion Network
Systems,  Inc. as of December  31, 1995 and 1994,  and the related  consolidated
statements of operations,  changes in stockholders'  equity,  and cash flows for
each of the three years in the period ended December 31, 1995.  These  financial
statements   are  the   responsibility   of  the   Company's   management.   Our
responsibility  is to express an opinion on these financial  statements based on
our audits.

   We  conducted  our audits in  accordance  with  generally  accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable  assurance about whether the  consolidated  financial  statements are
free of material  misstatement.  An audit includes  examining,  on a test basis,
evidence supporting the amounts and disclosures in the financial statements.  An
audit also includes  assessing the accounting  principles  used and  significant
estimates  made by  management,  as well as  evaluating  the  overall  financial
statement  presentation.  We believe that our audits provide a reasonable  basis
for our opinion.

   In our opinion, the financial statements referred to above present fairly, in
all material  respects,  the  consolidated  financial  position of Orion Network
Systems, Inc. at December 31, 1995 and 1994, and the consolidated results of its
operations  and its cash flows for each of the three  years in the period  ended
December 31, 1995, in conformity with generally accepted accounting principles.

                                        ERNST & YOUNG LLP

Washington, DC
February 9, 1996
                                       F-2
<PAGE>
                           ORION NETWORK SYSTEMS, INC.
                           CONSOLIDATED BALANCE SHEETS

<TABLE>
<CAPTION>
                                                                                         DECEMBER 31,            SEPTEMBER 30,
                                                                               ------------------------------- ----------------
                                                                                     1994            1995            1996
                                                                               --------------- --------------- ----------------
                                                                                                                  (UNAUDITED)
<S>                                                                            <C>             <C>             <C>
Assets (Note 3)
Current assets:
 Cash and cash equivalents ..................................................    $11,218,831     $55,111,585     $36,656,619
 Accounts receivable (less allowance for doubtful accounts $278,000 at
  December 31, 1995 and $328,000 at September 30, 1996) .....................        551,870       5,189,598       5,808,568
 Notes receivable and accrued interest ......................................             --         129,810         157,125
 Prepaid expenses and other current assets...................................        150,276       3,168,058       5,584,196
                                                                                ------------    ------------    ------------    
Total current assets.........................................................     11,920,977      63,599,051      48,206,508
Property and equipment, at cost:

  Land ......................................................................         73,911          73,911          73,911
  Telecommunications equipment ..............................................      4,231,380      13,836,841      22,707,786   
  Furniture and computer equipment ..........................................      1,833,169       3,395,799       4,598,505   
  Satellite and related equipment ...........................................    303,486,227     321,918,549     322,450,415   
                                                                                ------------    ------------    ------------    
                                                                                 309,624,687     339,225,100     349,830,617    
  Less: accumulated depreciation ............................................     (1,628,958)    (32,170,865)    (57,914,578)    
                                                                                ------------    ------------    ------------    
Net property and equipment ..................................................    307,995,729     307,054,235     291,916,039     

Deferred financing costs, net ...............................................     15,551,956      12,894,720      11,208,678      
Other assets, net ...........................................................      4,706,876       5,527,221       4,645,948      
                                                                                ------------    ------------    ------------    
Total assets ................................................................   $340,175,538    $389,075,227    $355,977,173    
                                                                                ============    ============    ============    
Liabilities and stockholders' equity                                                                           
Current liabilities: ........................................................                                  
  Accounts payable ..........................................................     $1,154,344     $10,454,723      $4,094,026   
  Accrued liabilities .......................................................      5,522,220       6,812,223       7,374,884     
  Other current liabilities .................................................             --       2,111,687       5,402,117    
  Interest payable ..........................................................      7,734,764       8,005,079       3,128,365   
  Current portion of long-term debt (Note 5) ................................     12,015,663      28,607,110      33,873,930  
                                                                                ------------    ------------    ------------    
Total current liabilities ...................................................     26,426,991      55,990,822      53,873,322 
Long-term debt (Note 5) .....................................................    230,175,483     250,669,286     221,781,393  
Other liabilities ...........................................................      3,091,074      20,698,084      32,878,061  
Limited Partners' interest in Orion Atlantic (Notes 1 and 3) ................     62,519,087      14,626,338      19,961,032   
Minority interest in other consolidated entities ............................         57,639          52,354          52,984   
Commitments and contingencies (Note 4) ......................................  
Series A 8% Cumulative Redeemable  Convertible Preferred Stock, .............
$.01 par value; 15,000 shares authorized; 13,871, 14,491 and 14,500  
   shares issued and outstanding at September 30, 1996 and December 31, 1995
   and 1994, respectively, plus accrued dividends (Note 6) ..................     14,554,693      15,705,054     15,820,460
Series B 8% Cumulative Redeemable  Convertible Preferred Stock, 
   $.01 par value; 5,000 shares authorized; 4,298 and 4,483 shares issued and 
   outstanding at September 30, 1996 and December 31, 1995, plus accrued 
   dividends (Note 6) .......................................................             --       4,652,647      4,718,526
Stockholders' equity (Notes 4 and 6): ......................................
 Common stock, $.01 par value; 40,000,000 shares authorized; 11,232,533,
  11,115,965 and 7,045,523 issued, 10,973,018, 10,856,450 and 6,786,008
  outstanding at September 30, 1996 and December 31, 1995 and 1994,
  respectively, less 259,515 held as treasury shares (at no cost) ...........         70,455          111,160        112,325
 Capital in excess of par value .............................................     33,952,062       85,485,613     86,508,773
 Accumulated deficit ........................................................    (30,671,946)     (58,916,131)   (79,729,703)
                                                                                ------------    ------------    ------------    
Total stockholders' equity ..................................................      3,350,571       26,680,642      6,891,395
                                                                                ------------    ------------    ------------    
Total liabilities and stockholders' equity ..................................   $340,175,538     $389,075,227   $355,977,173
                                                                                ============     ============   ============
</TABLE>
               See notes to consolidated financial statements.
                                       F-3
<PAGE>
                           ORION NETWORK SYSTEMS, INC.
                      CONSOLIDATED STATEMENTS OF OPERATIONS

<TABLE>
<CAPTION>
                                                                                                     NINE MONTHS ENDED
                                                         YEAR ENDED DECEMBER 31,                       SEPTEMBER 30,
                                             ----------------------------------------------- --------------------------------
                                                   1993            1994            1995            1995            1996
                                             --------------- --------------- --------------- --------------- ----------------
                                                                                               (UNAUDITED)      (UNAUDITED)
<S>                                          <C>             <C>             <C>             <C>             <C>
Services revenue ..........................  $  2,006,021    $  3,415,053    $ 22,283,882    $ 13,947,425    $ 30,015,517
Operating expenses: .......................

 Direct                                         2,648,306       3,503,037      10,485,745      10,019,683       4,285,834
 Sales and marketing ......................     1,920,578       5,863,823       8,613,399       5,914,332       7,792,666
 Engineering and technical services........     1,775,261       3,004,144       8,539,644       6,021,853       6,333,525
 General and administrative................     4,731,322       5,058,201      10,072,429       7,168,165      11,469,235
 Depreciation and amortization.............     1,752,103       1,716,019      31,403,376      22,276,632      26,402,947
                                             --------------- --------------- --------------- --------------- ----------------
  Total operating expenses.................    12,827,570      19,145,224      69,114,593      51,400,665      56,284,207
                                             --------------- --------------- --------------- --------------- ----------------
Loss from operations.......................   (10,821,549)    (15,730,171)    (46,830,711)    (37,453,240)    (26,268,690)
Other expense (income):
 Interest income...........................      (181,707)       (413,435)     (1,924,822)     (1,078,347)     (1,841,868)
 Interest expense..........................       132,869          60,559      24,738,446      17,080,146      20,228,519
 Other.....................................     4,949,722         (54,737)      3,359,853         (43,216)        (48,356)
                                             --------------- --------------- --------------- --------------- ----------------

  Total other expense (income).............     4,900,884        (407,613)     26,173,477      15,958,583      18,338,295
                                             --------------- --------------- --------------- --------------- ----------------
Loss before minority interest..............   (15,722,433)    (15,322,558)    (73,004,188)    (53,411,823)    (44,606,985)
Limited Partners' and minority interest in
 the net loss of Orion Atlantic and other
 consolidated entities ....................     7,836,362       7,357,640      46,089,010      33,426,738      24,799,698
                                             --------------- --------------- --------------- --------------- ----------------
Net loss...................................    (7,886,071)     (7,964,918)    (26,915,178)    (19,985,085)    (19,807,287)
Preferred stock dividend ..................            --         626,400       1,329,007         959,646       1,006,285
                                             --------------- --------------- --------------- --------------- ----------------
Net loss attributable to common
 stockholders..............................  $ (7,886,071)   $ (8,591,318)   $(28,244,185)   $(20,944,731)   $(20,813,572)
                                             =============== =============== =============== =============== ================
Net loss per common share..................  $      (0.85)   $      (0.86)   $      (3.07)   $      (2.42)   $      (1.90)
                                             =============== =============== =============== =============== ================
Weighted average common shares
 outstanding...............................     9,266,445       9,272,166       9,103,505       8,522,067      10,943,287
                                             =============== =============== =============== =============== ================
</TABLE>

                 See notes to consolidated financial statements.
                               F-4
<PAGE>
                           ORION NETWORK SYSTEMS, INC.
           CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY

<TABLE>
<CAPTION>
                                                      COMMON STOCK
                                               -------------------------
                                                                           CAPITAL IN         TOTAL            TOTAL
                                                 NUMBER OF                  EXCESS OF      ACCUMULATED     STOCKHOLDERS'
                                                   SHARES       AMOUNT      PAR VALUE        DEFICIT          EQUITY
                                               ------------- ----------- -------------- ---------------- ----------------
<S>                                              <C>           <C>         <C>            <C>              <C>
Balance at December 31, 1992.................     6,405,732    $ 64,057    $28,608,812    $(14,194,557)    $ 14,478,312
 Issuance of common stock (Note 6)...........       178,097       1,781      1,804,564              --        1,806,345 
 Exercise of stock options...................           165           2            998              --            1,000     
 Net loss for 1993...........................            --          --             --      (7,886,071)      (7,886,071)    
                                                 ----------    --------    -----------    ------------     ------------     
Balance at December 31, 1993.................     6,583,994      65,840     30,414,374     (22,080,628)       8,399,586     
 Issuance of common stock....................       782,503       7,825      6,326,028              --        6,333,853     
 Exercise of stock options...................        31,967         319        208,131              --          208,450     
 Conversion of common stock to redeemable                                                                                   
  preferred stock (Note 6)...................      (352,941)     (3,529)    (2,996,471)             --       (3,000,000)    
 Accrued dividend on preferred stock.........            --          --             --        (626,400)        (626,400)    
 Net loss for 1994...........................            --          --             --      (7,964,918)      (7,964,918)    
                                                 ----------    --------    -----------    ------------     ------------     
Balance at December 31, 1994.................     7,045,523      70,455     33,952,062     (30,671,946)       3,350,571     
 Issuance of common stock....................     4,002,941      40,030     50,960,330              --       51,000,360     
 Exercise of stock options and warrants......        67,501         675        573,221              --          573,896     
 Accrued dividend on preferred stock.........            --          --             --      (1,329,007)      (1,329,007)    
 Net loss for 1995...........................            --          --             --     (26,915,178)     (26,915,178)    
                                                 ----------    --------    -----------    ------------     ------------     
Balance at December 31, 1995.................    11,115,965     111,160     85,485,613     (58,916,131)      26,680,642     
 Conversion of preferred to common...........        91,071         910        804,034              --          804,944     
 Exercise of stock options and warrants......        25,497         255        219,126              --          219,381     
 Accrued dividend on preferred stock.........            --          --             --      (1,006,285)      (1,006,285)    
 Net loss for the nine months ended September                                                                               
  30, 1996...................................            --          --             --     (19,807,287)     (19,807,287)    
                                                 ----------    --------    -----------    ------------     ------------     
Balance at September 30, 1996 (unaudited)  ..    11,232,533    $112,325    $86,508,773    $(79,729,703)    $  6,891,395     
                                                 ==========    ========    ===========    ============     ============     
</TABLE>
                 See notes to consolidated financial statements.
                               F-5
<PAGE>
                           ORION NETWORK SYSTEMS, INC.
                      CONSOLIDATED STATEMENTS OF CASH FLOWS
<TABLE>
<CAPTION>
                                                                                                      NINE MONTHS ENDED
                                                               YEAR ENDED DECEMBER 31,                   SEPTEMBER 30,
                                                 --------------------------------------------    ----------------------------
                                                     1993            1994            1995            1995            1996
                                                 ------------    ------------    ------------    ------------    ------------
                                                                                                 (UNAUDITED)      (UNAUDITED)
<S>                                              <C>             <C>             <C>              <C>            <C>
Operating activities
Net loss .....................................   $ (7,886,071)   $ (7,964,918)   $(26,915,178)   $(19,985,085)   $(19,807,287)
Adjustments to reconcile net loss to net cash
 used in operating activities:
 Depreciation and amortization ...............      1,798,526       1,713,117      31,403,376      22,276,632      26,402,947
 Amortization of deferred financing costs ....           --              --         2,130,588       1,597,941       1,597,941
 Provision for bad debts .....................           --              --           277,529         671,226         524,999
 Satellite incentives and accrued interest ...           --              --         5,185,834       6,463,771       1,747,334
 Limited Partners' interest in Orion Atlantic      (7,843,860)     (7,390,331)    (46,109,627)    (33,454,227)    (24,800,306)
 Minority interest in other consolidated
  entities ...................................          7,496          37,627          20,617          27,489             608
 Gain on sale of assets ......................        (50,278)        (54,737)        (59,301)        (45,616)        (41,054)
  Changes in operating assets and liabilities:
  Accounts receivable ........................         63,075        (426,281)     (4,915,257)     (1,921,320)     (1,143,969)
  Accrued interest ...........................           --              --          (129,810)           --           (27,315)
  Prepaid expenses and other current assets ..        197,025         159,030      (3,017,782)     (4,261,808)     (2,416,138)
  Other assets ...............................       (279,902)        321,443        (519,773)     (1,618,912)        427,741
  Accounts payable and accrued liabilities ...      3,125,830         535,092       7,327,377         745,518      (5,818,070)
  Other current liabilities ..................           --              --         3,670,988         977,374       3,279,274
  Interest payable ...........................           --              --          (885,106)     (1,883,773)     (4,876,714)
                                                 ------------    ------------    ------------    ------------    ------------
Net cash used in operating activities ........    (10,868,159)    (13,069,958)    (32,535,525)    (30,410,790)    (24,950,009)

Investing activities
Capital expenditures .........................    (44,130,325)    (51,103,006)     (9,060,412)     (3,863,019)    (10,266,012)
Cost of business acquisition .................         (2,721)           --              --              --              --
Refund from satellite manufacturer ...........           --              --         2,750,000       2,750,000            --
FCC license costs ............................        (93,545)        (96,030)       (558,817)       (381,337)       (117,600)
                                                 ------------    ------------    ------------    ------------    ------------
Net cash used in investing activities ........    (44,226,591)    (51,199,036)     (6,869,229)     (1,494,356)    (10,383,612)

Financing activities
Limited Partners|Al capital contributions ....           --         4,000,000       7,600,000       7,600,000      30,135,000
Redemption of limited partner interest .......           --              --        (4,450,000)           --              --
Expenditures on equity financing costs .......        (31,773)       (409,181)           --              --              --
Proceeds from issuance of redeemable preferred
stock ........................................           --        10,928,293       4,483,001      51,616,441         219,380
Proceeds from issuance of common stock and
subscriptions, net of issuance costs .........      1,807,345       6,542,303      51,974,436       4,483,001            --
PPU borrowings ...............................      1,400,000       4,375,000       2,275,000       2,275,000            --
Proceeds from issuance of notes payable ......      2,146,625       8,136,191         551,850         551,850            --
Proceeds from senior notes payable to banks ..     45,604,063      36,685,505      18,367,134      18,367,134            --
Repayment of senior notes payable to banks ...           --              --       (12,468,049)     (9,718,049)    (22,768,340)
Repayment of notes payable ...................        (46,320)           --        (1,916,966)     (1,668,818)     (2,328,096)
Payments on capital lease obligations ........           --          (252,823)       (576,727)       (416,679)       (559,266)
Capacity and other liabilities ...............           --         2,101,168      17,483,733      10,662,162      12,179,977
Distributions to joint venture minority
 interest ....................................        (49,073)        (22,873)        (25,904)        (25,904)           --
                                                 ------------    ------------    ------------    ------------    ------------
Net cash provided by financing activities ....     50,830,867      72,083,583      83,297,508      83,726,138      16,878,655
                                                 ------------    ------------    ------------    ------------    ------------
Net increase (decrease) in cash and cash
 equivalents .................................     (4,263,883)      7,814,589      43,892,754      51,820,992     (18,454,966)
Cash and cash equivalents at beginning of
 period ......................................      7,668,125       3,404,242      11,218,831      11,218,831      55,111,585
                                                 ------------    ------------    ------------    ------------    ------------
Cash and cash equivalents at end of period ...   $  3,404,242    $ 11,218,831    $ 55,111,585    $ 63,039,823    $ 36,656,619
                                                 ============    ============    ============    ============    ============

</TABLE>
                 See notes to consolidated financial statements.
                                       F-6
<PAGE>
                           ORION NETWORK SYSTEMS, INC.

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

             (INFORMATION WITH RESPECT TO SEPTEMBER 30, 1996 AND FOR
           THE NINE MONTHS ENDED SEPTEMBER 1995 AND 1996 IS UNAUDITED)

1. ORGANIZATION

   Orion Network Systems, Inc. (Orion) was incorporated in the State of Delaware
on October 26, 1982 (inception) under the name Orion Satellite Corporation,  and
in January  1988,  changed its name to Orion  Network  Systems,  Inc.  Orion has
developed and operates an international satellite  communications system for use
in private communications networks to multinational  businesses and transmission
capacity  for video and  other  program  distribution  services.  Orion's  first
satellite (Orion 1) was  successfully  launched on November 29, 1994. Orion took
delivery of the Orion 1 satellite on January 20, 1995. As a result,  Orion is no
longer  considered a development  stage enterprise  effective  January 1995. For
periods prior to January 1995, Orion was in the development stage.

   Since 1989,  management  has been involved  primarily in  developing  Orion's
partnership, International Private Satellite Partners, L.P. (Orion Atlantic), in
order to raise the necessary  capital to finance the  construction and launch of
up to  two  telecommunications  satellites  in  geosynchronous  orbit  over  the
Atlantic Ocean and to establish a multinational sales and service  organization.
Orion  has been  financed  by  equity  and debt from  individual  and  corporate
investors.  British  Aerospace PLC or its affiliates  (BAe) and Lockheed  Martin
Corporation  or its  affiliates  (Lockheed  Martin) are  stockholders  of Orion,
limited  partners in Orion  Atlantic  and were  significant  contractors  in the
construction and launch of the satellite system.

   In June 1991,  Orion,  through a  wholly-owned  subsidiary,  Orion  Satellite
Corporation  (OrionSat),  received  a license  from the  Federal  Communications
Commission  (FCC)  authorizing  it to construct,  launch and operate a satellite
system comprised of two satellites to provide  international  telecommunications
services. Pursuant to an application by OrionSat, the license was transferred to
Orion  Atlantic on April 19, 1994,  by order of the FCC. In December  1991,  the
initial phase of the  partnership  financing  plan was concluded by a closing on
equity commitments in the form of limited partnership  interests aggregating $90
million and execution of a credit  agreement  related to senior debt commitments
for up to $251  million  (see  further  discussion  in Note 3). Also in December
1991,  notice to proceed with the construction  contract for the first satellite
was given to BAe, the prime contractor.

   OrionSat is the sole  general  partner in Orion  Atlantic  and received a 25%
equity  interest  as of  the  initial  closing  for,  among  other  things,  its
contribution  of certain  rights and  interests  under its FCC license,  certain
contract rights, and other tangible and intangible assets. Orion participates as
a limited partner with a 16 2/3% equity interest and  participates  fully in the
obligations  and rights of the  limited  partnership.  The  aggregate  ownership
interest by Orion and its  subsidiaries  in Orion  Atlantic is 41 2/3% (see Note
3).

   In August 1995, the Company  completed its initial public  offering of common
stock by  selling  4,000,000  common  shares at $14 per share.  Proceeds  to the
Company, net of underwriting discount,  aggregated approximately $52.25 million.
In July 1995,  in  connection  with the planned  initial  public  offering,  the
shareholders  approved a 1 for 1.36 reverse stock split.  All  references in the
consolidated  financial  statements with regard to shares, per share amounts and
share prices have been adjusted for the reverse stock split.

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

CONSOLIDATION POLICY

   The consolidated  financial statements include the accounts of Orion, its two
wholly-owned  subsidiaries OrionNet, Inc. (OrionNet) and OrionSat, its 83% owned
subsidiary,  Asia Pacific Space and Communications Ltd. (Asia Pacific) (see Note
7), the Orion Financial  Partnership,  in which Orion holds a 50% interest,  and
Orion Atlantic, in which Orion holds, at December 31, 1995, a 41 2/3% ownership
                                       F-7
<PAGE>
                           ORION NETWORK SYSTEMS, INC.
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS-(Continued)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES-(CONTINUED)

interest.  Management  control and direction of Orion  Atlantic by OrionSat is a
requirement  of the FCC in order  for Orion  Atlantic  to  continue  to hold the
license  authority  received in June 1991.  OrionSat,  as the general partner of
Orion Atlantic, exercises such control through the provisions of the partnership
agreement.  The amount  reflected  in the balance  sheet as  "Limited  Partners'
interest in Orion Atlantic"  represents  amounts invested by entities other than
Orion (net of syndication  costs related to the investments)  adjusted for those
Limited  Partners'  share of operating  results.  All  significant  intercompany
accounts and transactions have been eliminated.

USE OF ESTIMATES

   The preparation of financial statements in conformity with generally accepted
accounting principles requires management to make estimates and assumptions that
affect the amounts reported in the financial  statements and accompanying notes.
Actual results could differ from those estimates.

CASH AND CASH EQUIVALENTS

   Orion considers all highly liquid investments with a maturity of three months
or less  when  purchased  to be cash  equivalents.  Cash  and  cash  equivalents
includes cash in banks and short term investments, as follows:



                                     DECEMBER 31, 1995
                                     -----------------

          Cash ...................     $ 3,091,277
          Money market funds  ....       6,018,925
          FHLMC discount notes ...      11,389,208
          Commercial paper  ......      34,612,175
                                       -----------
                                       $55,111,585
                                       ===========


   The FHLMC  discount notes and  commercial  paper mature  between  January and
March 1996.

STATEMENT OF CASH FLOWS

   Non-cash  investing  and  financing  activities  and  supplemental  cash flow
information includes:

<TABLE>
<CAPTION>
                                                                                                  NINE MONTHS ENDED
                                                             YEAR ENDED DECEMBER 31,                SEPTEMBER 30,
                                                    ---------------------------------------- --------------------------
                                                         1993          1994         1995          1995         1996
                                                    -------------- ------------ ------------ ------------- ------------
<S>                                                 <C>            <C>          <C>          <C>           <C>     
Satellite construction costs financed by notes
  payable .......................................   $27,517,175   $ 7,862,050   $      --     $      --    $       --
Conversion of common stock to redeemable
  preferred stock ...............................          --       3,000,000          --            --            --
Property and equipment financed by capital leases          --          94,323     4,350,766          --            --
Accrued dividend on preferred stock .............          --         626,400     1,329,007       959,646     1,006,285
Conversion of preferred stock to common stock ...          --            --           9,000          --         804,944
Premium on satellite due to redemption of L.P. ..
  interest ......................................          --            --       3,066,925          --            --
Redemption of STET interest with notes payable ..          --            --            --       8,000,000          --
Reduction in amount due to satellite manufacturer          --            --         485,799          --            --
Satellite incentive obligation capitalized ......          --            --      14,816,406          --            --
Interest paid during the year, net of amounts
  capitalized ...................................        37,983        45,051    11,312,875    10,857,800    11,436,301

</TABLE>
                                       F-8
<PAGE>
                          ORION NETWORK SYSTEMS, INC.
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS-(Continued)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES-(CONTINUED)

NET LOSS PER COMMON SHARE

   Net loss per common share is based on the weighted  average  number of common
shares  outstanding  during the  period.  Pursuant  to the  requirements  of the
Securities  and Exchange  Commission,  common  stock  issued and stock  issuable
relating to convertible preferred stock, warrants and options granted within one
year of filing the  registration  statement  relating to the  Company's  initial
public  offering of common  stock were  treated as  outstanding  for all periods
prior to the second quarter of 1995.

INTERIM FINANCIAL STATEMENTS

   The  accompanying  financial  statements as of September 30, 1996 and for the
nine months  ended  September  30, 1995 and 1996 are  unaudited  but include all
adjustments, consisting only of normal recurring accruals, which Orion considers
necessary for a fair  presentation of financial  position and operating  results
for those  interim  periods.  The  operating  results for the nine months  ended
September  30, 1996 are not  necessarily  indicative  of the results that may be
expected for the year ended December 31, 1996.

PROPERTY AND EQUIPMENT

   Property and equipment are carried at cost. Depreciation and amortization are
calculated using the  straight-line  method over their estimated useful lives as
follows:



               Satellite and related equipment .....  10.5 years
               Telecommunications equipment  .......   2-7 years
               Furniture and computer equipment  ...   2-7 years



   Costs incurred in connection with the construction and successful  deployment
of the  satellite  and related  equipment  are  capitalized.  Such costs include
direct contract cost,  allocated indirect costs, launch costs, launch insurance,
construction  period  interest  and the  present  value of  satellite  incentive
payments.  Orion began depreciating the satellite over its estimated useful life
commencing on the date of operational delivery in orbit (January 20, 1995).

   In March  1995,  the  Financial  Accounting  Standards  Board  (FASB)  issued
Statement No. 121,  "Accounting for the Impairment of Long-Lived  Assets and for
Long-Lived  Assets to Be Disposed Of",  which requires  impairment  losses to be
recorded on long-lived  assets used in operations  when indicators of impairment
are present and the  undiscounted  cash flows estimated to be generated by those
assets  are less  than the  assets'  carrying  amount.  Statement  No.  121 also
addresses the accounting for long-lived  assets that are expected to be disposed
of. The effect of adoption was not material.

DEFERRED FINANCING COSTS

   Deferred  financing  costs  related to  obtaining  debt and Orion's  share of
equity  financing for Orion  Atlantic are amortized  over the period the debt is
expected to be  outstanding.  Accumulated  amortization  at September  30, 1996,
December  31,  1995  and  1994  was   $8,589,000,   $6,990,000   and  $4,860,000
respectively.  Amortization  through January 1995 was capitalized as part of the
cost of the satellite.  Costs of  approximately  $3.4 million relating to a debt
offering  which was  postponed  in  November  1995 have  been  charged  to other
expense.
                                       F-9
<PAGE>
                          ORION NETWORK SYSTEMS, INC.
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS-(Continued)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES-(CONTINUED)

OTHER ASSETS

   Other  assets  consist   principally  of  FCC  license   application   costs,
organization  costs and  goodwill.  The  Company  began  amortizing  FCC license
application  costs  related  to Orion 1 in  January  1995 and will  continue  to
amortize  these  costs  over  the  estimated   useful  life  of  the  satellite.
Organization   costs  and  goodwill  are  amortized  over  five  and  ten  years
respectively.  Accumulated amortization at September 30, 1996, December 31, 1995
and 1994 was $3,535,000, $3,069,000 and $1,934,000, respectively.

REVENUE RECOGNITION

   Orion's  revenue  results  from  providing   telecommunications  and  related
services.  Revenue is recognized  as earned in the period in which  services are
provided.

   The  following  summarizes  the Company's  domestic and foreign  revenues for
1995:


               Revenues from unaffiliated customers.....
                 United States...........................  $ 8,528,736
                 Europe..................................    8,056,146
               Revenues from related parties ............    5,699,000
                                                           -----------
               Total services revenue....................  $22,283,882
                                                           ===========


INTEREST RATE MODIFICATION AGREEMENTS

   Orion  may,  from  time  to  time,  enter  into  interest-rate  swap  and cap
agreements to modify the interest characteristics of its outstanding debt from a
floating to a fixed-rate basis. These agreements involve the receipt of floating
rate amounts in an exchange for  fixed-rate  interest  payments over the life of
the  agreement  without an  exchange of the  underlying  principal  amount.  The
differential  to be paid or  received is accrued as  interest  rates  change and
recognized as an adjustment to interest expense related to the debt. The related
amount  payable to or  receivable  from  counterparties  is included in interest
payable.  The fair  values  of the swap  agreements  are not  recognized  in the
financial statements. (See Notes 5 and 8)

INCOME TAXES

   The Company adopted the provisions of FASB Statement No. 109, "Accounting for
Income Taxes"  effective  January 1, 1993,  and as a result,  uses the liability
method of accounting  for income taxes.  There was no cumulative  effect to this
accounting  charge.  Under this method,  deferred tax assets and liabilities are
determined  based on differences  between  financial  reporting and tax bases of
assets and  liabilities  and are  measured  using the enacted tax rates and laws
that will be in effect when the differences are expected to reverse.
                                      F-10
<PAGE>
                          ORION NETWORK SYSTEMS, INC.
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS-(Continued)

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES-(CONTINUED)

   Following  is a summary of the  components  of the net  deferred tax asset at
December 31, 1995 and 1994 (in thousands):

   Tax benefit of temporary differences:



                                         DECEMBER 31,
                                   -----------------------
                                       1994        1995
                                   ----------- -----------

Net operating loss carryforwards   $  12,480   $  19,463
Orion Atlantic losses ...........     (2,040)      1,237
Other ...........................        830       1,056
                                   ----------- -----------
Total ...........................     11,270      21,756
Valuation allowance .............    (11,270)    (21,756)
                                   ----------- -----------
Net deferred tax asset ..........  $      --   $      --
                                   =========== ===========



   At December 31, 1995,  Orion has  approximately  $51,219,000 in net operating
loss carryforwards which expire at varying dates from 2004 through 2010. The use
of these loss  carryforwards may be limited under the Internal Revenue Code as a
result of ownership changes  experienced by Orion. Due to uncertainty  regarding
its ability to realize the benefits of such net  operating  loss  carryforwards,
the Company has established a valuation allowance for the full amount of its net
operating loss carryforwards.

RECLASSIFICATIONS

   Certain prior year amounts have been  reclassified  to conform to the current
year presentation.

3. ORION ATLANTIC

   Orion  Atlantic  is  a  Delaware  limited   partnership   formed  to  provide
international private communications networks and basic transponder capacity and
capacity  services  (including  ancillary  ground  services) to  businesses  and
institutions  with  trans-Atlantic  and  intra-European  needs. The business was
organized by OrionSat,  the general  partner of Orion  Atlantic.  The  principal
purposes of Orion Atlantic are to finance the construction, launch and operation
of up to two  telecommunications  satellites  in  geosynchronous  orbit over the
Atlantic Ocean and to establish a multinational sales and service  organization.
OrionSat was granted  final  authority by the FCC on June 27, 1991 to construct,
launch and operate an international  communications  satellite system, including
two orbital slots at 37.5|SD W.L. and 47|SD W.L.  OrionSat,  the general partner
of Orion Atlantic, entered into an agreement with Orion Atlantic and its limited
partners  on December  20,  1991,  to convey the FCC license to Orion  Atlantic.
OrionSat filed an application to transfer the satellite  authorization  to Orion
Atlantic  in December  1992;  the  transfer  was granted by the FCC on April 19,
1994.  Effective  January 20,  1995,  Orion  Atlantic is no longer  considered a
development stage enterprise.  For periods prior to January 1995, Orion Atlantic
was considered a development stage enterprise.

   Eight international  corporations,  including Orion,  invested a total of $90
million in equity as limited partners in Orion Atlantic. Orion Atlantic also has
a credit facility which provided up to $251 million for the first satellite from
a syndicate of major  international  banks led by Chase  Manhattan Bank, N.A. In
addition to their equity investments,  the Limited Partners have agreed to lease
capacity on the satellites up to an aggregate $155 million and have entered into
additional  contingent  capacity lease  contracts  ("contingent  call") up to an
aggregate  $271 million,  as support for repayment of the senior debt.  The firm
capacity leases and contingent calls are payable over a seven-year  period after
the first  satellite is placed in service.  In July 1995,  January and July 1996
the Limited  Partners  (excluding the Company) paid $7.6 million,  $18.0 million
and $12.1 million, respectively, pursuant to these contingent calls.
                                      F-11
<PAGE>
                          ORION NETWORK SYSTEMS, INC.
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS-(Continued)

3. ORION ATLANTIC-(CONTINUED)

   Satellite  Construction  Contract  -- In  December  1991,  the  contract  for
construction,  launch services,  and launch and commissioning  insurance for two
communications   satellites  went  into  effect  with   OrionSat's   rights  and
obligations  under the contract being assigned to Orion  Atlantic.  During 1993,
Orion Atlantic  terminated its commitment to purchase the second  satellite and,
as a result,  incurred a $5 million  termination charge. Such amount is included
in other income  (expense) in the  accompanying  Statements of  Operations.  The
satellite was constructed by MMS Space Systems, Limited ("MMS Space Systems").

   The fixed base price of the total contract, excluding obligations relating to
satellite  performance,  aggregated  $227  million  and has been  fully  paid at
December 31, 1995.  In addition to the fixed base price,  the contract  requires
payments to be made, in lieu of a further  contract price increase,  aggregating
approximately $44 million through 2006. Such payments are due, generally,  if 24
out of 34 satellite  transponders  are operating  satisfactorily.  Shortly after
acceptance of the satellite in January 1995,  the Company filed a warranty claim
with the satellite  manufacturer relating to one transponder that did not appear
to be  performing in accordance  with contract  specifications.  In August 1995,
Orion Atlantic  received a one time refund of $2.75 million which was applied as
a mandatory prepayment to the senior notes payable -- banks (See Note 5).

   The Company believes that since Orion 1 is properly deployed and operational,
based upon industry data and  experience,  payment of the  obligation  mentioned
above is highly  probable and the Company has  capitalized  the present value of
this  obligation  of  approximately  $14.8  million  as part of the  cost of the
satellite.  Payment  of amounts  due under this  obligation  are  delayed  until
payment is permitted  under the senior notes  payable -- banks (See Note 5). The
present  value was  estimated  by  discounting  the  obligation  at 14% over the
expected term,  assuming payment of the incentives begins upon expiration of the
senior notes payable -- banks in 2002.

   Partnership and Limited  Partners -- OrionSat has the primary  responsibility
for the  control,  management  and  operations  of  Orion  Atlantic.  Under  the
partnership  agreement,  the limited  partners  have  rights of  approval  for a
limited  number  of  matters,  e.g.,  terms  for  acceptance  of  new  partners,
significant budget modifications, and certain borrowings.

   The  financing  and legal  structure of Orion  Atlantic  restricts the use of
partnership  resources to the purposes of constructing,  launching and operating
the  satellite  system.  Cash will be  distributable  by Orion  Atlantic  to the
partners  in the  future  only after  sufficient  operating  revenues  have been
generated to pay satellite  system  operating costs and debt service.  Orion and
OrionSat  will share pro rata with the partners in $28 million of the first $100
million  of cash  available  for  distribution  to the  partners  as a return of
capital.  Thereafter,  operating cash flow is  distributable  based on ownership
interests.

   Condensed  balance sheet  information for Orion Atlantic at December 31, 1995
and 1994 follows:


                                                1994          1995
                                            ------------- -------------

Assets
Current assets ...........................  $   5,664,469  $ 14,085,169
Property and equipment, net ..............    306,088,340   303,889,894
Deferred financing costs and other .......     17,473,547    16,051,517
                                            ------------- -------------
Total assets..............................  $ 329,226,356  $334,026,580
                                            ============= =============
Liabilities and partnership capital
Current liabilities.......................  $  27,024,035  $ 52,883,250
Long-term debt and other liabilities  ....    234,909,566   284,110,104
Partnership capital subject to redemption      10,000,000            --
Partnership capital ......................     57,292,755     1,533,226
Less: Orion Network Systems, Inc. note  ..             --    (4,500,000
                                            ------------- -------------
Total liabilities and partnership capital   $ 329,226,356  $334,026,580
                                            ============= =============
                                      F-12
<PAGE>
                           ORION NETWORK SYSTEMS, INC.
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS-(Continued)

3. ORION ATLANTIC-(CONTINUED)

   Redemption of STET Partnership  Interest;  Issuance of New Interest to Orion.
- -- On November 21, 1995 Orion Atlantic redeemed the limited partnership interest
held by STET (the "STET  Redemption").  Such  redemption  was for $11.5 million,
including  $3.5  million of cash and $8.0 million in 12%,  promissory  notes due
through 1997.  STET's firm and contingent  capacity  leases will remain in place
until released by the Banks under the Orion 1 Credit  Facility.  STET's existing
contractual  arrangements  with Orion Atlantic have been modified in a number of
respects, including (i) a reduction of approximately $3.5 million in amounts due
by Orion Atlantic to Telespazio  S.p.A.,  an affiliate of STET,  over a ten-year
period  under  contracts  relating  to the  construction  of  Orion  2,  back-up
tracking,  telemetry  and  command  services  through  a  facility  in Italy and
engineering consulting services, (ii) the establishment of ground operations and
distribution  agreements between Orion Atlantic and Telecom Italia, a subsidiary
of STET,  relating to Italy,  and the  granting to Telecom  Italia of  exclusive
marketing rights relating to Italy for a period ending December 1998 conditioned
upon  Telecom  Italia  achieving  certain  sales  quotas,  and  (iii)  canceling
exclusive ground operations and sales  representation  agreements  between Orion
Atlantic and STET (or its affiliates) relating to Eastern Europe.

   Orion  Atlantic   funded  the  STET  Redemption  by  selling  a  new  limited
partnership interest to Orion for $8 million (including $3.5 million in cash and
$4.5 million in 12% promissory  notes due through 1997).  In connection with the
STET  redemption,  Orion agreed to indemnify  Telecom  Italia for payments which
were made in July 1995 of $950,000  and which would be made in the future  under
its firm and contingent capacity agreements with Orion Atlantic and posted a $10
million  letter of credit to support such  indemnity.  The Company has accounted
for this transaction as an acquisition of a minority  interest and, as a result,
approximately  $3.1 million has been  allocated to the cost of the satellite and
related equipment.

   Other  Transactions  Involving  Limited  Partners -- Certain Limited Partners
were  also  subcontractors  under the  satellite  construction  contract.  Orion
Atlantic  also has  contracted  with Limited  Partners or their  affiliates  for
certain  consulting,  post-launch support services and other services related to
developing  the business.  Approximately  $5.0 million has been  incurred  under
these agreements, all of which was capitalized.

   During 1995,  Orion Atlantic  entered into  agreements  with certain  Limited
Partners (including the Company) under which the participating  Limited Partners
would  voluntarily  give up their  rights to receive  capacity  under their firm
capacity  agreements  through January 1996. The  participating  Limited Partners
would  continue to make  payments for such  capacity but would have the right to
receive  refunds from Orion Atlantic out of cash available after operating costs
and  payments  under the Credit  Facility.  Through  December  31,  1995,  Orion
Atlantic has received $14.1 million (excluding  payments from the Company) under
the firm capacity agreements subject to refund,  which amount is included in the
balance  sheet  caption  "Other  liabilities."  In  addition,  services  revenue
included  $5.7  million  in 1995  from  Limited  Partners  pursuant  to the firm
capacity commitments, not subject to refund.

4. COMMITMENTS AND CONTINGENCIES

   Obligations  with Respect to Orion  Atlantic -- Orion  presently  has certain
significant  obligations to Orion Atlantic and the Limited  Partners,  including
commitments  under  satellite  capacity   agreements  between  Orion  and  Orion
Atlantic,  under which Orion will be liable to pay Orion Atlantic  approximately
$2.5 million per year for seven years for satellite capacity and is contingently
liable for up to an  additional  $4.3  million per year for up to seven years if
Orion Atlantic  experiences cash flow deficits  commencing when Orion Atlantic's
first satellite begins commercial  operations;  and  reimbursement  (jointly and
severally with OrionSat) with respect to a $10 million letter of credit provided
by OrionSat to a limited partner,  which is secured by 259,515 shares of Orion's
common stock held in treasury and cash distributions that Orion and OrionSat may
receive with respect to their partnership interests in Orion Atlantic.
                                      F-13
<PAGE>
                           ORION NETWORK SYSTEMS, INC.
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS-(Continued)

4. COMMITMENTS AND CONTINGENCIES-(CONTINUED)

   Orion 1  satellite  -- In November  1995,  a portion of the Orion 1 satellite
experienced  an anomaly  that  resulted  in a  temporary  service  interruption,
lasting  approximately two hours, in the dedicated capacity serving the European
portion of Orion Atlantic's services. The nine affected transponders account for
a majority of Orion Atlantic's  present  revenues.  Full service to all affected
customers  was  restored  using  redundant  equipment  on the  satellite.  Orion
Atlantic  believes,  based on the data and the Telesat Report (issued by Telesat
Canada,  independent  engineering  consultants  dated November 14, 1995),  that,
because  the  redundant  component  is  functioning  fully  in  accordance  with
specifications  and the performance  record of similar components is strong, the
anomalous  behavior  is  unlikely  to affect  the  expected  performance  of the
satellite over its useful life.  Furthermore,  there has been no effect on Orion
Atlantic's ability to provide services to customers.  However, in the event that
the currently  operating component fails, Orion 1 would experience a significant
loss of usable capacity.  In such event,  while Orion Atlantic would be entitled
to insurance  proceeds of approximately  $50 million and could lease replacement
capacity  and function as a reseller  with respect to such  capacity (at reduced
levels of  profitability),  the loss of capacity  would have a material  adverse
effect on Orion and on Orion Atlantic.

   Orion 2 satellite -- In connection with the proposed  financing of Orion 2, a
subsidiary of Orion Atlantic entered into a satellite  construction contract for
Orion 2 with MMS Space  Systems,  subject to completion  of proposed  financing.
Depending  upon the timing and terms and conditions of the financing for Orion 2
and the then  satellite  design,  the Company  may seek to renew this  satellite
contract with MMS Space  Systems.  There can be no assurance that the terms of a
new satellite  contract will resemble  those of the satellite  contract with MMS
Space Systems. The Company expects to use Orion Atlantic's  Tracking,  Telemetry
and Control (TT&C) facility to control Orion 2 (although  authorizations will be
needed).

   Eutelsat Lease -- In January 1993, Orion Atlantic entered into a lease, which
expired in December  1994,  with one of its limited  partners  under which Orion
Atlantic  leased  one-half of a transponder  on a EUTELSAT  satellite for use in
providing private network services prior to the operational delivery of Orion 1.
The lease required quarterly payments of $481,000 of which $855,000 was deferred
by the limited  partner  until March 1995.  Rent under this lease  totaled  $1.9
million in 1994 and $1.8 million in 1993.

   Litigation  -- In October 1995,  Skydata  Corporation  ("Skydata"),  a former
contractor,  filed suit against Orion Atlantic,  Orion Satellite Corporation and
Orion,  in the United States  District Court for the Middle District of Florida,
claiming  that certain  Orion  Atlantic  operations  using frame relay  switches
infringe  a Skydata  patent.  Skydata's  suit  sought  damages  in excess of $10
million and asked that any damages  assessed be trebled.  On December  11, 1995,
the Orion  parties  filed a motion to dismiss the lawsuit on the grounds of lack
of jurisdiction and violation of a mandatory arbitration agreement. In addition,
on December 19, 1995, the Orion parties filed a Demand for  Arbitration  against
Skydata  with  the  American  Arbitration   Association  in  Atlanta,   Georgia,
requesting   damages  in  excess  of  $100,000   for  breach  of  contract   and
declarations,   among  other  things,  that  Orion  and  Orion  Atlantic  own  a
royalty-free license to the patent, that the patent is invalid and unenforceable
and that Orion and Orion Atlantic have not infringed on the patent. See Note 11.

   While Orion is party to  regulatory  proceedings  incident to the business of
Orion,  there  are no  other  material  legal  proceedings  pending  or,  to the
knowledge of management, threatened against Orion or its subsidiaries.

   Other -- Orion has entered  into  operating  leases,  principally  for office
space.  Rent expense was $735,000,  $668,000 and $661,000 during 1995, 1994, and
1993, respectively.
                                      F-14
<PAGE>
                           ORION NETWORK SYSTEMS, INC.
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS-(Continued)

4. COMMITMENTS AND CONTINGENCIES-(CONTINUED)

   Future minimum lease payments are as follows:


                       1996..................  $  774,357
                       1997..................     793,716
                       1998..................     887,138
                       1999..................     907,477
                                               ----------
                                               $3,362,688
                                               ==========


5. LONG-TERM DEBT

   Long-term debt consists of the following:



                                                         DECEMBER 31,          
                                               ------------------------------- 
                                                     1994            1995      
                                               --------------- --------------- 
                                                                               
          Senior notes payable -- banks  ....    $224,584,097    $230,483,182  
          Note payable -- TT&C Facility  ....       9,348,730       8,774,266  
          Satellite incentive obligation ....              --      20,002,240  
          Notes payable -- STET..............              --       8,000,000  
          Notes payable -- Limited Partners .       5,775,000       8,050,000  
          Other..............................       2,483,319       3,966,708  
                                               --------------- --------------- 
           Total long-term debt .............     242,191,146     279,276,396  
          Less: current portion .............      12,015,663      28,607,110  
                                               --------------- --------------- 
           Long-term debt less current                                         
            portion..........................    $230,175,483    $250,669,286  
                                               =============== =============== 
          


Total interest (including commitment fees and amortization of deferred financing
costs)  incurred for the years ended December 31, 1995, 1994 and 1993 was $26.0,
$27.0,  and  $16.3  million,  respectively.  Substantially  all of the  interest
incurred in 1994 and 1993 has been capitalized, while approximately $1.3 million
of interest was capitalized in 1995.

   Aggregate  annual  maturities of long-term  debt consist of the following (in
thousands):



                         1996..................  $ 28,607
                         1997..................    34,917
                         1998..................    34,358
                         1999..................    46,853
                         2000..................    43,590
                         Thereafter ...........    90,951
                                                 ---------
                                                 $279,276
                                                 =========



   Senior Notes  Payable to Banks -- In December  1991,  OrionSat,  on behalf of
Orion  Atlantic,  executed a credit  agreement  for up to $400 million of senior
debt from an international banking syndicate.  Amounts advanced under the credit
facility  are  secured  by the assets of Orion  Atlantic  and are due over seven
years in graduated  installments  beginning July 31, 1995. The credit  agreement
prohibits  the  extension  of credit by Orion  Atlantic to any  affiliate of the
partnership,  as defined.  Accordingly,  Orion  Atlantic may not loan or advance
funds to the Company or its  affiliates.  The credit  agreement  also  restricts
distributions  to the partners.  At December 31, 1995, none of Orion  Atlantic's
capital was  available  for  distribution.  The credit  facility has a number of
other  customary  covenants and  requirements,  including the Banks' approval of
significant changes to the construction contract and increases in
                                      F-15
<PAGE>
                           ORION NETWORK SYSTEMS, INC.
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS-(Continued)

5. LONG-TERM DEBT-(CONTINUED)

budgeted  costs.  The Banks  also have full  recourse  to  OrionSat  as  general
partner,  and Orion has pledged its  investment  in the common stock of OrionSat
and its limited partner ownership interest to the Banks.

   Amounts outstanding under the credit facility bear interest at 1.75% over the
LIBOR (7.68% at December 31, 1995).  Orion Atlantic has entered into  agreements
with Chase Manhattan Bank, N.A.  (Chase) for interest rate hedging  arrangements
which  fixed  the  maximum  interest  rate  through  November  1995  at  11.54%.
Thereafter a self funding  interest rate cap agreement is in place relating to a
notional amount declining every six months from $150 million effective  November
30, 1995 to $15.6 million  effective March 31, 2001.  Under the terms of the cap
agreement,  when LIBOR  equals or exceeds 5.5% Orion  Atlantic  pays Chase a fee
equal to 3.3% per annum of the notional amount and receives a payment from Chase
in an amount equal to the  difference  between the actual LIBOR rate and 5.5% on
the notional  amount.  There was an  unrealized  loss as of December 31, 1995 of
approximately  $4.6 million relating to these  arrangements.  Commitment fees of
0.5% of the unused Credit Facility are payable semiannually.

   Note  Payable -- TT&C  Facility -- Orion  Atlantic  entered  into a financing
arrangement with General Electric  Capital  Corporation  ("GECC") to finance the
Tracking Telemetry and Control (TT&C) Facility. The TT&C arrangement calls for a
note  payable,  the  maximum  amount of which is $11 million of which up to $8.9
million is for payment to Lockheed  Martin under the  Satellite  Control  System
Contract,  with the remaining  balance available to be drawn to finance the cost
of launch  insurance  required  for the  benefit of GECC.  In June  1995,  Orion
Atlantic  accepted the TT&C Facility and Orion Atlantic  refinanced $9.3 million
from GECC as a seven-year  term loan,  payable  monthly.  Orion  Atlantic made a
mandatory  prepayment of $1 million in January 1996.  The interest rate is fixed
at a 13.5%.

   The TT&C debt is secured by the TT&C Facility,  the Satellite  Control System
Contract and Orion Atlantic's  leasehold interest in the TT&C Facility land. The
TT&C  financing  agreement  contains  similar  representations,  warranties  and
covenants to those in the senior notes.

   Satellite  incentive  obligation  -- The  obligations  relating to  satellite
performance (see Note 3) have been recorded at the present value  (discounted at
14%, the Company's estimated incremental borrowing rate for unsecured financing)
of the required payments  commencing at the maturity of the senior notes payable
to banks and  continuing  through  2006.  Under  the  terms of the  construction
contract,  payment of the  obligation  is delayed  until such time as payment is
permitted under the senior notes payable to banks.

   Notes Payable -- STET -- In connection with the STET Redemption (see Note 3),
the Company  issued STET $8 million of  promissory  notes which bear interest at
12% per annum.  Payments are due as follows:  $2.5 million plus accrued interest
on December  31, 1996;  $3.5  million  plus  accrued  interest on the earlier of
December 31, 1997 or the  refinancing of the senior notes payable to banks;  and
the remaining $2.0 million in monthly  installments of $0.2 million plus accrued
interest beginning January 1997.

   Notes  Payable  --  Limited  Partners  -- In 1993,  Orion  Atlantic  received
commitments for Preferred  Participation  Units (PPUs)  aggregating $9.5 million
from  certain  Limited  Partners  (including  $1.5  million  from Orion  Network
Systems) for development of Orion Atlantic's network services business.

   Holders of PPUs earn  interest on aggregate  amounts drawn at the rate of 30%
per annum,  of which 6% is paid and the  remainder  accrued,  but not paid until
July 1, 1995, at which time interest and principal payments due are subordinated
to operating requirements and senior notes debt service but are payable prior to
distributions  to  Limited  Partners.  Principal  amounts  drawn are  payable on
February 1, 1999.  Principal  amounts may be prepaid without penalty on or after
January 1, 1996.
                                      F-16
<PAGE>
                          ORION NETWORK SYSTEMS, INC.
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS-(Continued)

6. REDEEMABLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY

   The  Company has  authorized  1,000,000  shares of $0.01 par value  preferred
stock.

   Redeemable Preferred Stock

   In June 1994, Orion issued 11,500 shares of Series A 8% Cumulative Redeemable
Convertible  Preferred  Stock at  $1,000  per  share  and  granted  an option to
purchase an  additional  3,833 shares of similar  preferred  stock at $1,000 per
share. Dividends on preferred stock accrue at 8% per year and are payable as and
when declared.  Orion may redeem the preferred stock at the amount invested plus
accrued and unpaid dividends. Upon such a redemption, the preferred stockholders
would  receive a warrant  to  acquire at $8.50 per share the number of shares of
common stock into which the preferred stock was  convertible.  The 11,500 shares
issued are convertible  into 1,352,941 shares of common stock ($8.50 per share).
Upon  conversion  any accrued and unpaid  dividends  would be waived.  Orion may
require  conversion  of the  preferred  stock  beginning in June 1996 if certain
conditions are met.

   The preferred stock has a liquidation preference equal to the amount invested
plus accrued and unpaid dividends.  Preferred  stockholders are entitled to vote
on an  as-converted  basis and have the  right to put the stock to Orion  upon a
merger,  change of control or sale of substantially all assets at the greater of
liquidation  value or fair  value.  The put  expires  upon the  completion  of a
qualified  public equity  offering,  as defined.  If the preferred  stock is not
previously  redeemed or converted to common stock,  the  preferred  stockholders
also have the right to put the stock to Orion as follows:  33 1/3%  beginning in
June 1999; 66 2/3% beginning in June 2000; and 100% beginning in June 2001.

   After Orion issued  preferred  stock (along with warrants and options to make
an  additional  investment)  in June  1994,  the  Directors  and  affiliates  of
Directors who purchased  common stock in December 1993 and the  institutions and
other investors who purchased common stock in June 1994 each exercised its right
to  receive  preferred  stock  (along  with  warrants  and  options  to  make an
additional  investment) in exchange for the common stock previously acquired and
Orion  issued an  aggregate  of 3,000  shares of  Series A  Preferred  Stock and
related options for 1,000 shares to such persons and entities, of which 9 shares
of  preferred  stock were  converted  into  1,058  shares of common  stock.  The
remaining  2,991 shares  issued are  convertible  into 351,882  shares of common
stock and the preferred stock underlying the options are convertible into 98,039
shares of common stock.

   In June 1995, certain Directors, affiliates of Directors, and certain holders
of Series A Preferred  Stock  purchased 4,483 shares of Series B Preferred Stock
for approximately $4.5 million.  This purchase was pursuant to an option granted
in June 1995 to purchase $1 of preferred stock similar to the Series A Preferred
Stock for each $3 of Series A Preferred  Stock  purchased  in June 1994,  except
that such similar  preferred  stock would be convertible at any time with Common
Stock at a price  within a range of $10.20 to $17.00  per share of common  stock
based  upon when the  option is  exercised.  The  Series B  Preferred  Stock has
rights,  designations  and  preferences  substantially  similar  to those of the
Series A Preferred Stock, and is subject to similar  covenants,  except that the
Series B Preferred  Stock is convertible  into 439,510 shares of Common Stock at
an  initial  price  of  $10.20  per  share,  subject  to  certain  anti-dilution
adjustments,  and  purchases  of Series B Preferred  Stock did not result in the
purchaser receiving any rights to purchase additional preferred stock.

   Stockholders' Equity

   In December  1993,  178,097  shares of Common Stock were issued at $10.20 per
share to new and existing shareholders.

   In May 1994,  Orion issued  588,235 shares of common stock at $8.50 per share
to Space Systems Loral pursuant to a stock purchase agreement.

   In May 1994, 19,424 shares of common stock were issued at $10.20 per share to
new and existing shareholders.
                                      F-17
<PAGE>
                          ORION NETWORK SYSTEMS, INC.
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS-(Continued)

6. REDEEMABLE PREFERRED STOCK AND STOCKHOLDERS'-(CONTINUED)

   In June 1994,  Orion issued an aggregate of 174,844 shares of common stock to
a limited  number of  institutions  and other  investors at a purchase  price of
$8.50 per share.

   The December  1993 and June 1994 common  stock  purchases  were  subsequently
converted to redeemable preferred stock.

   Stock Options -- In 1987, Orion adopted a stock option plan. Under this plan,
as amended,  1,470,588  shares of common stock are  reserved  for issuance  upon
exercise of options granted.  Shares of common stock may be purchased under this
plan at prices not less than the fair market  value,  as determined by the Board
of Directors, on the date the option is granted. The Board of Directors also has
granted  nonqualified  options to purchase 53,341 shares of common stock outside
the plan described at prices ranging from $5.44 to $12.24 per share.

   Stock options outstanding at December 31:

<TABLE>
<CAPTION>
                                         1993            1994             1995
                                         ----            ----             ----
<S>                                <C>             <C>              <C>
Range of exercise price .........   $5.44 - 15.00    $5.44 - 12.24    $5.44 - 12.24
                                    -------------    -------------    -------------
Outstanding at beginning of year       555,581         871,464           804,056
Granted during year .............      374,448          37,867           380,069
Exercised .......................         (165)        (31,967)          (60,928)
Canceled ........................      (58,400)        (73,308)         (151,728)
                                    -------------    -------------    -------------
Outstanding at end of year  .....      871,464         804,056           971,469
                                    =============    =============    =============
</TABLE>

   In November  1993,  options for 95,588 shares of common stock were granted to
key  executives  which may be  exercised  only upon the  achievement  of certain
business and financial objectives. In 1995 and 1994, these executives earned the
right to exercise 11,029 and 29,410 of these options based on the achievement of
such objectives.

   The options vest  annually  over a one to five-year  period.  All options are
exercisable  up to seven years from the date of grant.  There are  approximately
499,119 shares  available to be granted under the plan. As of December 31, 1995,
356,226 qualified and nonqualified options were exercisable.

   Stock Warrants -- Orion issued stock warrants to a financial  advisor in 1991
entitling the financial  advisor to purchase  43,049 shares of common stock at a
price of $11.56 a share.  Also,  in 1991,  as an  inducement to Chase to provide
partnership  bridge equity if required,  Orion issued stock  warrants  entitling
Chase to purchase up to 73,529 shares of common stock at $11.56 per share. These
warrants expire in 1996.

   Finally, as an inducement to two limited partners to incur satellite capacity
obligations  required by the senior debt lender,  Orion issued  warrants for the
purchase of an  aggregate  129,757  shares of common  stock at $11.56 per share.
These warrants expire in 1996. See Note 11.

   Warrants  have been  issued,  in  conjunction  with loans to Orion by certain
stockholders and members of executive  management  (since repaid or converted to
common  stock),  to acquire  483,823 shares of Orion's common stock at $11.56 to
$12.92 per share through 1997. The exercise price of these warrants was equal to
or above the fair value of the stock at the time of  issuance;  accordingly,  no
value was allocated to the warrants.  Total warrants outstanding were 553,768 at
December 31, 1995 and 735,769 at December 31, 1994 and 1993.

   The holders of  preferred  stock also hold  warrants  to  purchase  1,704,824
shares of common stock at the conversion  price of such preferred  stock.  These
warrants  do  not  become  exercisable  unless  Orion  exercises  its  right  to
repurchase the preferred stock at the liquidation value, plus accrued and unpaid
dividends.
                                      F-18
<PAGE>
                           ORION NETWORK SYSTEMS, INC.
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS-(Continued)

6. REDEEMABLE PREFERRED STOCK AND STOCKHOLDERS'-(CONTINUED)

   The Company has elected to  continue to follow  Accounting  Principles  Board
Opinion No. 25,  "Accounting for Stock Issued to Employees" (APB 25) and related
Interpretations  in  accounting  for its  employee  stock based award  programs,
because the alternative fair value accounting  provided for under FASB Statement
No. 123, "Accounting for Stock Based Compensation" which is effective for awards
after  January 1, 1996  requires  use of option  valuation  models that were not
developed  for use in valuing  employee  stock  options.  Under APB 25, when the
exercise  price of the employee  award equals the market price of the underlying
stock on the date of grant, as has been the case historically with the Company's
awards, no compensation expense is recognized.

7. INVESTMENT IN ASIA PACIFIC

   In January 1990,  Orion entered into an arrangement with Asia Pacific whereby
each  company  exchanged  into escrow  common  shares  having a market  value of
$500,000. In this exchange, Orion received 250,000 shares of Asia Pacific common
stock representing at that time an 11% ownership  interest,  for which it issued
51,061 shares of common stock at a value of $9.79 per share to Asia Pacific. The
assigned value of the Asia Pacific shares received of $500,000 was recorded as a
reduction  to  stockholders'  equity.  In 1992,  the Board of Directors of Orion
authorized the  acquisition of up to 100% of Asia Pacific's  outstanding  common
stock.  As a result of this new  agreement,  the January  1990  transaction  was
rescinded  and the  shares  held  in  escrow  were  returned  to the  respective
companies.  The acquisition of an 83% interest in Asia Pacific was finalized and
executed in  December  1992,  resulting  in the  exchange  of 289,147  shares of
Orion's  common stock for 2,089,392  shares of Asia Pacific  common  stock.  The
acquisition was accounted for as a purchase.
Asia Pacific is a development stage enterprise.

8. FAIR VALUES OF FINANCIAL INSTRUMENTS

   Other  than  amounts  due under the  senior  notes  payable  to banks,  Orion
believes  that the carrying  amount  reported in the balance  sheet of its other
financial assets and liabilities  approximates  their fair value. The fair value
of Orion  Atlantic's  senior  notes  payable to banks at  December  31,  1995 is
estimated to be $235.1 million based on the principal balance  outstanding,  net
of the estimated fair value of the interest rate modification  agreement,  which
approximates  an  implicit  loss of $4.6  million.  Credit  risk  exists  if the
counterparty  is not able to make the  required  payments  to Orion  under these
agreements. Orion believes the risk to be remote.
                                      F-19
<PAGE>
                           ORION NETWORK SYSTEMS, INC.
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS-(Continued)

9. CONDENSED FINANCIAL INFORMATION OF ORION

   As described in Notes 3 and 5, the net assets,  credit  facilities  and other
resources of Orion Atlantic are restricted to the  construction and operation of
the satellite  system.  Presented  below are condensed  balance  sheets of Orion
(parent  company  only  basis)  at  December  31,  1995 and  1994 and  condensed
statements of operations  and cash flows for the years ended  December 31, 1995,
1994 and 1993. All material  contingencies,  obligations and guarantees of Orion
have  been  separately  disclosed  in  the  preceding  notes  to  the  financial
statements.

<TABLE>
<CAPTION>
                                                              DECEMBER 31,
                                                     --------------------------
                                                          1994        1995
                                                     ------------ -------------
<S>                                                  <C>          <C>
Assets
Current assets:
 Cash and cash equivalents ........................  $ 6,201,941  $ 48,797,627
 Receivable from Orion Atlantic ...................    2,071,547     1,217,169
 Other current assets .............................      215,985       611,391
                                                     ------------ -------------
  Total current assets.............................    8,489,473    50,626,187
Investment in and advances to subsidiaries:
 OrionNet..........................................    2,477,943     5,993,628
 OrionSat..........................................   (2,793,608)  (20,496,009)
 Asia Pacific .....................................    1,870,508     1,634,048
 Orion Atlantic ...................................    7,800,544    10,585,573
Other assets.......................................    1,710,080     6,256,742
                                                     ------------ -------------
Total assets.......................................  $19,554,940  $ 54,600,169
                                                     ============ =============
Liabilities and stockholders' equity
Current liabilities: ..............................
 Notes and interest payable to Orion Atlantic .....  $        --  $  2,482,667
 Accounts payable and accrued liabilities..........      860,191     2,361,291
                                                     ------------ -------------
  Total current liabilities........................      860,191     4,843,958
Notes and interest payable to Orion Atlantic ......           --     2,077,327
Other liabilities..................................      789,485       640,542
Redeemable preferred stock.........................   14,554,693    20,357,701
Stockholders' equity...............................    3,350,571    26,680,642
                                                     ------------ -------------
Total stockholders' equity.........................  $19,554,940  $ 54,600,169
                                                     ============ =============
</TABLE>

        CONDENSED STATEMENTS OF OPERATIONS OF ORION NETWORK SYSTEMS, INC.



                                          1993         1994         1995
                                      ------------ ------------ -------------
Services revenue....................  $        --  $        --  $         --
Costs and expenses: ................
General and administrative..........    2,855,646    2,487,201     4,204,011
Interest expense (income)...........      197,673     (243,152)   (1,834,589)
                                      ------------ ------------ -------------
Total costs and expenses............    3,053,319    2,244,049     2,369,422
Equity in net losses of
subsidiaries........................    4,832,752    5,720,869    24,545,756
                                      ------------ ------------ -------------
Net loss............................  $(7,886,071) $(7,964,918) $(26,915,178)
                                      ============ ============ =============
                                      F-20
<PAGE>
                           ORION NETWORK SYSTEMS, INC.
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS-(Continued)

9. CONDENSED FINANCIAL INFORMATION OF ORION-(CONTINUED)

CONDENSED STATEMENTS OF CASH FLOWS OF ORION NETWORK SYSTEMS, INC.

<TABLE>
<CAPTION>
                                                            1993            1994           1995
                                                       --------------- --------------- --------------
<S>                                                    <C>             <C>             <C>
Net cash used in operations..........................  $(2,319,221)    $(2,709,307)    $(4,107,237)
Investing activities:
 Advances to subsidiaries............................   (1,115,662)     (2,973,264)     (3,264,024)
 Investment in Orion Atlantic........................           --              --      (5,400,000)
 Capital expenditures................................     (106,835)       (771,890)       (597,698)
 Acquisition of Asia Pacific.........................       (2,721)             --              --
                                                       --------------- --------------- --------------
                                                        (1,225,218)     (3,745,154)     (9,261,722)
Financing activities:
Proceeds from issuance of redeemable preferred stock            --      10,928,293       4,483,001
Proceeds from issuance of common stock...............    1,807,345       6,542,303      51,974,436
PPU funding..........................................     (280,000)       (765,000)       (455,000)
Proceeds from issuance of notes payable..............      326,511              --              --
Repayment of notes payable...........................      (46,318)     (5,648,535)        (37,792)
                                                       --------------- --------------- --------------
                                                         1,807,538      11,057,061      55,964,645
                                                       --------------- --------------- --------------
Net increase (decrease) in cash .....................   (1,736,901)      4,602,600      42,595,686
Cash and cash equivalents at beginning of year  .....    3,336,242       1,599,341       6,201,941
                                                       --------------- --------------- --------------
Cash and cash equivalents at end of year ............  $ 1,599,341     $ 6,201,941     $48,797,627
                                                       =============== =============== ==============
</TABLE>

   Basis of presentation  -- In these parent  company-only  condensed  financial
statements,  Orion's investment in subsidiaries is stated at cost less equity in
the losses of subsidiaries since date of inception or acquisition.

10. SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED)

   The  following is a summary of the quarterly  results of  operations  for the
years-ended December 31, 1995 and 1994:

<TABLE>
<CAPTION>
                                 MARCH 31    JUNE 30     SEPTEMBER 30   DECEMBER 31
                               ----------- ----------- --------------- -------------
                                       (IN THOUSANDS, EXCEPT PER SHARE DATA)
<S>                            <C>         <C>            <C>           <C>
1995
 Revenues ...................  $  2,508    $  5,238       $  6,201      $  8,336 
 Loss from operations........   (11,891)    (12,038)       (13,525)       (9,377)
 Loss before minority                                                            
  interest...................   (15,978)    (18,248)       (19,186)      (19,592)
 Net loss....................    (5,996)     (6,991)        (6,998)       (6,930)
 Net loss per share..........     (0.64)      (0.75)         (0.78)        (0.67)
                                                                                 
1994                                                                             
 Revenues ...................  $    616    $    718       $    896      $  1,185 
 Loss from operations........    (3,211)     (4,233)        (3,651)       (4,636)
 Loss before minority                                                            
  interest...................    (3,190)     (4,044)        (3,638)       (4,451)
 Net loss....................    (1,786)     (1,928)        (2,217)       (2,034)
 Net loss per share..........     (0.19)      (0.21)         (0.24)        (0.22)
                                                          
</TABLE>
                                      F-21
<PAGE>
                           ORION NETWORK SYSTEMS, INC.
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS-(Continued)

11. SUBSEQUENT EVENTS (UNAUDITED)

   In July  1996,  Orion  entered  into an  Exchange  Agreement  (the  "Exchange
Agreement")  with the  Limited  Partners  that  hold 58 1/3% of the  partnership
interests  in Orion  Atlantic.  Pursuant to the Exchange  Agreement,  Orion will
acquire  all of  the  interests  held  by  the  Limited  Partners,  as  well  as
approximately $38 million of Orion Atlantic  indebtedness to Limited Partners in
exchange for a newly issued series of redeemable  convertible preferred stock in
Orion and the  release of certain  credit  support  obligations  of the  Limited
Partners.  The  Exchange  Agreement  is  conditioned  upon a  number  of  events
including,  among other things,  shareholder approval, the British Aerospace and
Matra Marconi  Space  debenture  investments,  the  acquisition  of the minority
interest of Asia Pacific held by British  Aerospace,  and the refinancing of the
Orion 1 Credit Facility, all as described below.

   Orion  intends  to enter  into an  agreement  with an  affiliate  of  British
Aerospace to acquire their 17% outstanding minority interest in Asia Pacific for
approximately 86,000 shares of Orion Common Stock.

   Orion has entered into a Memorandum of Agreement, effective December 6, 1996,
for procurement of Orion 2 spacecraft with Matra Marconi Space with an aggregate
contract value of $200.8 million,  excluding launch  insurance.  On December 13,
1996, OAP entered into an Authorization  to Proceed  Agreement with Hughes Space
and Communications  International for the procurement of Orion 3 spacecraft with
an aggregate contract value, subject to execution of a definitive agreement,  of
$208 million,  excluding launch insurance.  Construction of Orion 3 commenced in
mid-December 1996.

   The Company intends to file a Registration  Statement with the Securities and
Exchange  Commission  pursuant  to  which  the  Company  will  offer  to sell an
aggregate  of $222 million of Units  consisting  of Senior  Notes,  due 2007 and
warrants to purchase  common  stock,  and an  aggregate of $125 million of Units
consisting  of Senior  Discount  Notes due 2007 and warrants to purchase  common
stock (the "Offering").  The proceeds from this offering are intended to be used
primarily  to  refinance  the  Orion 1 Credit  Facility.  Concurrently  with the
Offering,  British  Aerospace and Matra Marconi Space have committed to purchase
$50 million  and $10  million of  convertible  junior  subordinated  debentures,
respectively.  Such  debentures  are expected to bear  interest at 8.75% payable
semiannually  in Orion  common  stock  (valued at up to $14.00 per share)  until
maturity in 2012. The Offering is conditioned on  consummation  of the Exchange,
repayment of the Orion 1 Credit  Facility  with proceeds of the Offering and the
British Aerospace and Matra Marconi Space debenture investments; the Exchange is
conditioned on, among other things,  the Orion 2 Satellite  Contract,  which has
been entered  into,  and approval of the Orion  stockholders,  expected to occur
prior to the  pricing  of the  Offering;  and the  British  Aerospace  debenture
investment is  conditioned  on Orion's  acquisition  of the  remaining  minority
interest in Asia Pacific, which has occurred or is in the process of occurring.

   In November 1996, Orion entered into a contract with DACOM Corp. ("DACOM"), a
Korean  communications  company,  under which  DACOM will lease eight  dedicated
transponders on Orion 3 for 13 years, in return for  approximately  $89 million,
which is payable over a period from December  1996 through six months  following
the lease commencement date for the transponders (which is scheduled to occur by
January  1999).  DACOM is to  deposit  funds  with  Orion in  accordance  with a
milestone schedule. It has the right to terminate the contract at any time prior
to March 31, 1997, upon which  termination Orion would be entitled to retain all
deposited  funds.  Prior to  launch,  payments  will be held in  escrow  and are
subject to refund pending the successful  launch and  commencement of commercial
operation  of Orion 3. In  November  1996,  Orion  granted an option to Dacom to
purchase  50,000  shares of common  stock at a price of $14.00  per  share.  The
warrant is  exercisable  for a six-month  period  beginning six months after the
commencement date, as defined in the Joint Investment Agreement,  and ending one
year after  commencement date and will terminate at that time or at any time the
Joint Investment Agreement is terminated.
                                      F-22
<PAGE>
                           ORION NETWORK SYSTEMS, INC
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS-(Continued)

11. SUBSEQUENT EVENTS (UNUADITED)-(CONTINUED)

   In January 1997, Orion issued an aggregate of approximately  86,500 shares of
Common Stock to British Aerospace,  one of the Company's principal  stockholders
which has a  representative  on the Company's Board of Directors.  Such issuance
was pursuant to the exercise of a warrant granted in December 1991 in connection
with the formation of Orion Atlantic.

   
   Litigation. In connection with the Skydata suit discussed in Note 4, on March
5, 1996,  the court granted the  Company's  motion to dismiss the lawsuit on the
basis that Skydata's  claims are subject to  arbitration.  Skydata  appealed the
dismissal to the United States Court of Appeals for the Federal Circuit. Skydata
also filed a counterclaim in the arbitration  proceedings  asserting a claim for
$2 million  damages as a result of the conduct of Orion and its  affiliates.  On
May 15, 1996, the arbitrator  granted the Orion parties'  request for an initial
hearing on claims relating to the Orion parties' rights to the patent, including
the co-ownership  claim and other contractual  claims.  This initial hearing was
scheduled to take place in November 1996. On November 9, 1996, Orion and Skydata
executed a letter to settle in full the pending  litigation and arbitration.  As
part of the  settlement,  the  parties  are to release all claims by either side
relating in any way to the patent and/or the pending litigation and arbitration.
In  addition,  Skydata is to grant Orion (and its  affiliates)  an  unrestricted
paid-up  license to make,  have made,  use or sell products or methods under the
patent and all other corresponding continuation and reissue patents. Orion is to
pay Skydata  $437,000 over a period of two years as part of the settlement.  The
parties  are in the  process of  documenting  the terms of the  settlement  in a
formal settlement agreement.     
                                      F-23
<PAGE>
                                    GLOSSARY

ORION, ITS PARTNERS AND CREDITORS:

Banks ......................  A  syndicate  of  international   banks  that  are
                              parties to the Orion 1 Credit Facility.

British Aerospace ..........  British  Aerospace Public Limited Company,  one of
                              the world's leading aerospace  organizations,  and
                              its affiliates,  including its subsidiary  British
                              Aerospace Communications, Inc., a Limited Partner.
                              Kingston  Satellite  Services,   a  joint  venture
                              between   Kingston   Communications   and  British
                              Aerospace,  serves  as  sales  representative  and
                              ground operator for Orion in the United Kingdom.

COM DEV ....................  COM  DEV  Satellite   Communications   Limited,  a
                              Limited  Partner  and a  subsidiary  of  COM  DEV,
                              Limited.  COM DEV,  Limited is also a supplier  of
                              value-added  satellite   communications  services,
                              products for wireless personal  communications and
                              satellite remote sensing data.

GECC .......................  General Electric Capital  Corporation,  the lender
                              for the TT&C Financing.

Kingston Communications ....  Kingston  Communications  International Limited, a
                              Limited  Partner  and  a  subsidiary  of  Kingston
                              Communications     (Hull)     plc,     the    only
                              municipally-owned  telephone company in the United
                              Kingdom.  Kingston  Satellite  Services,  a  joint
                              venture  between   Kingston   Communications   and
                              British Aerospace,  serves as sales representative
                              and  ground  operator  for  Orion  in  the  United
                              Kingdom.

Limited Partners ...........  The limited partners in Orion Atlantic,  including
                              British Aerospace  Communications,  Inc., COM DEV,
                              Kingston Communications,  Lockheed Martin CLS, MCN
                              Sat US, Inc. and Trans-Atlantic Satellite, Inc.

Lockheed Martin ............  Lockheed Martin Corporation,  a major manufacturer
                              of  aerospace  and  military  equipment,  and  the
                              ultimate  parent company of Lockheed Martin CLS, a
                              Limited Partner and the launch subcontractor under
                              the Orion 1 Satellite  Contract.  Lockheed  Martin
                              CLS  acquired  the  assets  of  General   Dynamics
                              Commercial  Launch Services  through a transfer of
                              assets from Martin Marietta Corporation,  which in
                              turn  acquired  these and other assets  (including
                              the Atlas family of launch  vehicles) from General
                              Dynamics Corporation in 1994.

Lockheed Martin CLS ........  Lockheed Martin Commercial Launch Services,  Inc.,
                              a  Limited  Partner  and a  subsidiary  of  Martin
                              Marietta  Technologies,  Inc.,  a Lockheed  Martin
                              company.  Lockheed  Martin CLS acquired the assets
                              of General  Dynamics  Commercial  Launch  Services
                              through a transfer of assets from Martin  Marietta
                              Corporation,  which  in turn  acquired  these  and
                              other assets (including the Atlas family of launch
                              vehicles)  from General  Dynamics  Corporation  in
                              1994.  Lockheed Martin CLS is a commercial  launch
                              services  provider and provided launch services to
                              Orion as the launch  subcontractor under the Orion
                              1 Satellite Contract. Lockheed Martin CLS became a
                              Limited   Partner   by   acquiring   the   limited
                              partnership  interest of General  Dynamics  CLS in
                              the 1994 transaction described above.
                                      G-1
<PAGE>
Matra Hachette .............  Matra Hachette, an aerospace,  defense, industrial
                              and media company and part of the Lagardere Groupe
                              of France,  and the parent  company of MCN Sat US,
                              Inc., a Limited Partner.  Matra Hachette is one of
                              the parent  companies of Matra Marconi Space which
                              is the parent  company of MMS Space  Systems,  the
                              prime contractor for Orion 1, and the manufacturer
                              under the Orion 2 Satellite Contract.

Nissho Iwai Corp ...........  Nissho Iwai  Corporation,  is a trading company in
                              Japan,  and the parent  company of  Trans-Atlantic
                              Satellite, Inc., a Limited Partner.

Orion ......................  (1)  the  combined  operations  of  Orion  Network
                              Systems,  Inc.,  a Delaware  corporation,  and its
                              subsidiaries    (collectively,    the   "Operating
                              Company"),  prior to the date of the  merger  of a
                              newly formed  subsidiary  ("Merger  Sub") of Orion
                              Newco  Services,  Inc., a recently formed Delaware
                              corporation  ("Orion  Newco"),  into the Operating
                              Company  (the  "Merger")  and  (2)  Orion  and its
                              subsidiaries,  including  the  Operating  Company,
                              after the Merger.

Orion 1 Credit Facility ....  A facility  of up to $251  million of senior  debt
                              provided to finance  Orion 1, which will be repaid
                              with proceeds of the Notes Offering.

Orion Asia Pacific .........  Asia  Pacific  Space and  Communications,  Ltd., a
                              Delaware  corporation.  Orion  acquired 83% of the
                              stock of such  company  in  December  1992 and has
                              acquired or will acquire the remaining  17%, which
                              is held by  British  Aerospace,  in  exchange  for
                              approximately 86,000 shares of Common Stock in the
                              OAP Acquisition.

Orion Atlantic .............  International Private Satellite Partners,  L.P., a
                              Delaware limited  partnership of which OrionSat is
                              the general partner, which owns Orion 1.

OrionNet ...................  OrionNet,  Inc., a Delaware corporation and wholly
                              owned subsidiary of Orion.

OrionSat ...................  Orion    Satellite    Corporation,    a   Delaware
                              corporation and wholly owned subsidiary of Orion.

Partners ...................  The  partners  in Orion  Atlantic,  consisting  of
                              OrionSat,  as the general partner, and the Limited
                              Partners (including Orion).

Partnership Agreement ......  The  limited   partnership   agreement   of  Orion
                              Atlantic,  which includes the terms and conditions
                              governing the partnership  arrangements  among the
                              Partners.

STET .......................  STET-Societa Finanziaria  Telefonica-per Azioni is
                              a former Limited Partner and the parent company of
                              Telecom Italia, the Italian PTT.

STET Redemption ............  The  redemption  on  November  21,  1995 by  Orion
                              Atlantic of the limited partnership  interest held
                              by STET  and  modification  of  STET's  previously
                              existing   contractual   arrangements  with  Orion
                              Atlantic.

TT&C Financing .............  A facility of up to $11  million  provided by GECC
                              for Orion's TT&C  facility that was converted to a
                              seven-year term loan on June 1, 1995 and which had
                              an  outstanding  balance  of  $7.2  million  as of
                              September 30, 1996
                                       G-2
<PAGE>
SATELLITE CONSTRUCTION AND SATELLITE COMMUNICATIONS:

bandwidth ..................  The  relative  range  of  frequencies  that can be
                              passed  through  a  transmission   medium  without
                              distortion. The greater the bandwidth, the greater
                              the information  carrying  capacity.  Bandwidth is
                              measured in Hertz.

C-band .....................  Certain  high  frequency   radio  frequency  bands
                              between 3,400 to 6,725 MHz used by  communications
                              satellites.

constructive total loss ....  If  a  satellite   is   completely   destroyed  or
                              incapable   of   operation   (except  for  certain
                              failures due to  circumstances  beyond the control
                              of the manufacturer)  during a specified number of
                              days after launch.

footprint ..................  Signal coverage area for a satellite.

Hertz ......................  The unit for measuring the frequency with which an
                              electromagnetic    signal   cycles   through   the
                              zero-value  state  between  the lowest and highest
                              states.  One Hertz  (abbreviated as Hz) equals one
                              cycle  per  second;  kHz  (kiloHertz)  stands  for
                              thousands  of Hertz;  MHz  (megaHertz)  stands for
                              millions of Hertz.

Hughes Space ...............  Hughes  Space  and  Communications  International,
                              Inc., the manufacturer under the Orion 3 Satellite
                              Contract.  Hughes Space is a subsidiary  of Hughes
                              Aircraft Company, which is a subsidiary of General
                              Motors Corporation.

Ku-band ....................  Certain  high  frequency   radio  frequency  bands
                              between 10,700 to 14,500 MHz permitting the use of
                              smaller antennae than the older C-band technology.

Matra Marconi Space ........  Matra Marconi Space UK Limited, the parent company
                              of MMS Space  Systems  and a  subsidiary  of Matra
                              Marconi Space NV, and the  manufacturer  under the
                              Orion 2 Satellite Contract. Matra Marconi Space NV
                              is  owned  by  Matra  Hachette  (51  percent)  and
                              General Electric Co. of Britain (49 percent).

Orion 1 ....................  The high-power  Ku-band  communications  satellite
                              operated over the Atlantic Ocean by Orion.

Orion 1 Satellite Contract .  The  fixed  price  turnkey   contract   originally
                              entered into between  British  Aerospace and Orion
                              Atlantic for the design, construction,  launch and
                              delivery  in orbit of Orion 1.  British  Aerospace
                              assigned  its  rights  under the  contract  to MMS
                              Space Systems, which was subsequently purchased by
                              Matra  Marconi  Space  NV and  renamed  MMS  Space
                              Systems Limited.  British Aerospace remains liable
                              to Orion for the  performance  of the contract but
                              performance has been assigned to MMS Space Systems
                              and the Company understands that MMS Space Systems
                              and Matra Marconi Space NV have fully  indemnified
                              British Aerospace against liabilities thereunder.

Orion 2 ....................  The high-power Ku-band communications satellite to
                              be operated over the Atlantic Ocean by Orion.

Orion 2 Satellite Contract .  The spacecraft  purchase  agreement  between Orion
                              and  Matra  Marconi  Space  for  construction  and
                              launch of Orion 2.

Orion 3 ....................  The high-power Ku-band communications satellite to
                              be operated by Orion in the Asia Pacific region.

                                       G-3
<PAGE>
Orion 3 Satellite Contract .  The proposed spacecraft purchase agreement between
                              Orion Asia Pacific,  a wholly owned  subsidiary of
                              Orion,  and  Hughes  Space  for  construction  and
                              launch of Orion 3.

Space Systems or MMS Space 
  Systems ..................  MMS Space Systems Limited,  a former subsidiary of
                              British  Aerospace which was sold to Matra Marconi
                              Space NV, in 1994. MMS Space Systems served as the
                              prime  contractor  under  the  Orion  1  Satellite
                              Contract.

   
transponder ................  The  part of a  satellite  which  is used  for the
                              reception of  communication  signals from, and the
                              frequency     conversion,     amplification    and
                              transmission of communication signals to, earth.
    

TT&C Station ...............  A  satellite  control  system,  which  includes  a
                              satellite control center and a tracking, telemetry
                              and  command   station  complex  at  Mt.  Jackson,
                              Virginia.

VSAT .......................  Very small  aperture  terminal earth stations that
                              can be  installed  on  rooftops  or  elsewhere  at
                              customer locations,  with antennas as small as 0.8
                              meters  but  ranging  in sizes up to 2.4 meters in
                              diameter.

REGULATION AND COMPETITION:

Communications Act .........  The U.S. Communications Act of 1934, as amended.

EUTELSAT ...................  European regional satellite facilities  consortium
                              owned by approximately 40 European countries.

FCC ........................  The   United   States    Federal    Communications
                              Commission.

INTELSAT ...................  International     Telecommunications     Satellite
                              Organization,     an    international    satellite
                              facilities  consortium owned by approximately  130
                              government and privately owned  telecommunications
                              companies.  References to INTELSAT are intended to
                              include the signatories thereof unless the context
                              otherwise requires.

ITU ........................  International    Telecommunication    Union,    an
                              international   body  formed  by  treaty  that  is
                              responsible  for   coordinating   and  registering
                              orbital slots to satellites.

Orion 1 License ............  The  license  granted  to  Orion  by  the  FCC  to
                              construct,   launch  and   operate   Orion  1,  at
                              designated orbital location 37.5|SD West longitude
                              over the Atlantic Ocean.

PanAmSat ...................  Pan  American  Satellite  Corporation,  a publicly
                              traded  U.S.  company   providing   trans-Atlantic
                              satellite  service and services to Latin  America,
                              the Pacific  Ocean  region,  and the Indian  Ocean
                              region,  using a satellite  system  separate  from
                              INTELSAT.

PTT ........................  Postal,   telephone  and  telegraph  organization,
                              ordinarily   a   government-owned   communications
                              monopoly.

                                       G-4
<PAGE>
                                                                    ATTACHMENT A

                          AGREEMENT AND PLAN OF MERGER
                                       OF
                       ORION MERGER COMPANY, INC. ("SUB")
                                  WITH AND INTO
                      ORION NETWORK SYSTEMS, INC. ("ONS"),
                               AMONG SUB, ONS, AND
                           ORION NEWCO SERVICES, INC.
<PAGE>
   
   THIS AGREEMENT AND PLAN OF MERGER (the  "Agreement") is made and entered into
as of the 8th day of January,  1997, by and among ORION NETWORK SYSTEMS, INC., a
Delaware  corporation  ("ONS,"  or, with regard to the period upon and after the
Effective  Time  of  the  Merger  (as  hereinafter   defined),   the  "Surviving
Corporation"),  ORION NEWCO SERVICES,  INC., a Delaware  corporation  ("Newco"),
which is a direct  wholly-owned  subsidiary  of ONS, and ORION  MERGER  COMPANY,
INC., a Delaware corporation ("Sub"), which is a direct wholly-owned  subsidiary
of  Newco  and  an  indirect  wholly-owned  subsidiary  of  ONS  (ONS  and  Sub,
collectively,   the  "Constituent   Corporations,"   and  each,  a  "Constituent
Corporation").     

                                 R E C I T A L S

   
   A.  WHEREAS,  ONS is a corporation  organized and existing  under the General
Corporation  Law of the State of Delaware  (the  "DGCL"),  and is  authorized to
issue a total of  Forty-One  Million  (41,000,000)  shares of stock,  in two (2)
classes,  the first class  consisting  of Forty Million  (40,000,000)  shares of
common stock, $.01 par value per share (the "ONS Common Stock"), of which, as of
December 15, 1996,  Ten Million Nine Hundred  Seventy-Four  Thousand One Hundred
and Twenty-One  (10,974,121)  shares are issued and outstanding (such shares or,
as the  context  may  require,  such  lesser or greater  number of shares of ONS
Common Stock issued and outstanding  immediately  prior to the Effective Time of
the Merger, the "Outstanding ONS Common Shares") (with, as of December 15, 1996,
an  additional  Three Million One Hundred  Ninety-Six  Thousand Nine Hundred and
Seventy-Six   (3,196,976)  shares  of  ONS  Common  Stock  being  issuable  upon
conversion  of the  Outstanding  ONS Series A Preferred  Shares (as  hereinafter
defined)  and the  Outstanding  ONS Series B  Preferred  Shares (as  hereinafter
defined) and upon the  exercise of rights under the ONS Options (as  hereinafter
defined)  and  the ONS  Warrants  (as  hereinafter  defined))  and  Two  Hundred
Fifty-Nine Thousand Five Hundred and Fifteen (259,515) shares are issued but not
outstanding (such shares or, as the context may require,  such lesser or greater
number of  shares  of ONS  Common  Stock as may be  issued  but not  outstanding
immediately prior to the Effective Time of the Merger,  the "Treasury ONS Common
Shares"),  and the second class consisting of One Million  (1,000,000) shares of
preferred stock, $.01 par value per share (the "ONS Preferred Stock"),  of which
Fifteen  Thousand  (15,000)  shares  constitute a series of ONS Preferred  Stock
having the designation "Series A 8% Cumulative Redeemable  Convertible Preferred
Stock"  (the "ONS Series A  Preferred  Stock") (of which  shares of ONS Series A
Preferred  Stock Thirteen  Thousand Eight Hundred and  Seventy-One  (13,871) are
issued and  outstanding  as of December 15, 1996 (such shares or, as the context
may require,  such lesser or greater  number of shares of ONS Series A Preferred
Stock as may be issued and outstanding  immediately  prior to the Effective Time
of the Merger, the "Outstanding ONS Series A Preferred  Shares")),  and of which
Five Thousand  (5,000) shares  constitute a series of ONS Preferred Stock having
the designation "Series B 8% Cumulative Redeemable  Convertible Preferred Stock"
(the "ONS Series B Preferred  Stock") (of which shares of ONS Series B Preferred
Stock  Four  Thousand  Two  Hundred  and  Ninety-Eight  (4,298)  are  issued and
outstanding  as December  15, 1996 (such  shares or, as the context may require,
such lesser or greater  number of shares of ONS Series B Preferred  Stock as may
be issued and outstanding immediately prior to the Effective Time of the Merger,
the  "Outstanding  ONS  Series  B  Preferred  Shares,"  and  together  with  the
Outstanding  ONS Series A  Preferred  Shares,  the  "Outstanding  ONS  Preferred
Shares")).
    

   B. WHEREAS,  Sub is a corporation  organized and existing under the DGCL, and
is authorized to issue a total of One Thousand (1,000) shares, in a single class
of common stock, $.01 par value per share (the "Sub Common Stock"), of which, as
of the date hereof,  one (1) share is issued and outstanding  (the  "Outstanding
Sub  Common  Share")  (as of the  date  hereof,  Newco  holding  of  record  the
Outstanding Sub Common Share) and no shares are issued but not outstanding.

   C. WHEREAS, Newco is a corporation organized and existing under the DGCL, and
is  authorized  to issue a total of  Forty-One  Million  (41,000,000)  shares of
stock,  in two  (2)  classes,  the  first  class  consisting  of  Forty  Million
(40,000,000) shares of common stock, $.01 par value per share (the "Newco Common
Stock"),  of  which,  as of the  date  hereof,  one  (1)  share  is  issued  and
outstanding (the "Outstanding  Newco Common Share") (as of the date hereof,  ONS
holding of record the  Outstanding  Newco Common Share) and no shares are issued
but not outstanding, and the second class consisting of One
                                       A-2
<PAGE>
   
Million  (1,000,000)  shares of preferred  stock,  $.01 par value per share (the
"Newco Preferred  Stock"),  of which Fifteen Thousand (15,000) shares constitute
or, prior to and at the Effective Time of the Merger will  constitute,  a series
of Newco Preferred Stock,  substantially identical to the ONS Series A Preferred
Stock,  having the designation  "Series A 8% Cumulative  Redeemable  Convertible
Preferred Stock" (the "Newco Series A Preferred Stock") (none of which shares of
Newco  Series A  Preferred  Stock  are  issued  and  outstanding  as of the date
hereof),  and of which Five Thousand (5,000) shares  constitute or, prior to and
at the Effective Time of the Merger will constitute, a series of Newco Preferred
Stock,  substantially  identical to the ONS Series B Preferred Stock, having the
designation "Series B 8% Cumulative Redeemable Convertible Preferred Stock" (the
"Newco  Series B  Preferred  Stock")  (none of which  shares  of Newco  Series B
Preferred Stock are issued and outstanding as of the date hereof).     

   D. WHEREAS,  the  respective  Boards of Directors of ONS, Sub, and Newco have
determined  that it is advisable and in the best  interests of each of ONS, Sub,
and Newco and their respective stockholders that Sub be merged with and into ONS
in accordance  with the terms and conditions of this  Agreement (the  "Merger"),
and  accordingly  the  Board of  Directors  of each of ONS,  Sub,  and Newco has
adopted, approved, and authorized this Agreement and the Merger.

   E. WHEREAS, it is contemplated that the Merger will be effected in accordance
with  Section  251(g) of the DGCL,  and it is  expected  that  Ernst & Young LLP
("Ernst  &  Young"),  tax  advisor  to ONS,  will  render an  opinion  (the "Tax
Opinion")  that the  holders of shares of ONS stock which are  converted  in the
Merger into the right to receive shares of Newco stock will have the opportunity
to qualify for  nonrecognition  treatment because the Merger will qualify either
as (a) a reorganization  pursuant to Section 368(a) of the Internal Revenue Code
of 1986, as amended (the "Code"), or (b) an exchange satisfying the requirements
of Section 351(a) of the Code.

   
   F. WHEREAS, ONS, Orion Satellite  Corporation,  a Delaware  corporation,  and
each  of the  existing  limited  partners  (other  than  ONS)  (the  "Exchanging
Partners") of International Private Satellite Partners, L.P., a Delaware limited
partnership  ("Orion  Atlantic"),  have  entered  into a  Section  351  Exchange
Agreement  and Plan of  Conversion,  dated  as of June  1996  (as  amended,  the
"Exchange Agreement"),  pursuant to which ONS has agreed, among other things, to
have Newco issue  shares of a series of Newco  Preferred  Stock that,  after the
Effective  Time of the  Merger,  will be provided  for and have the  designation
"Series C 6%  Cumulative  Redeemable  Convertible  Preferred  Stock" (the "Newco
Series C Preferred Stock"), in exchange for the Exchanging  Partners' respective
limited  partnership  interests  in Orion  Atlantic  and other  rights  relating
thereto (the "Exchange").
    

   NOW,  THEREFORE,  in  consideration of the premises,  the mutual  agreements,
promises, covenants,  representations,  warranties,  acknowledgments,  and other
terms, conditions,  and provisions set forth herein, and other good and valuable
consideration, the sufficiency and receipt of which are hereby acknowledged, the
parties agree as follows:

                                    ARTICLE I
                                   THE MERGER

   
   1.1 The Merger;  Filing and Effective Time. Subject to and in accordance with
the terms and  conditions of this  Agreement and the DGCL,  this Agreement or in
lieu thereof a certificate  of merger  regarding the Merger of Sub with and into
ONS (as the case may be, the "Delaware Merger  Certificate")  shall be executed,
acknowledged,  and filed with the  Secretary  of State of the State of  Delaware
(the "Delaware  Secretary of State") by the Surviving  Corporation at or as soon
as  practicable  after the Closing (as  hereinafter  defined).  The Merger shall
become  effective  upon such  filing of the  Delaware  Merger  Certificate  (the
"Effective Time of the Merger").     

   1.2 Closing.  Subject to and in accordance  with the terms and  conditions of
this Agreement,  the closing of the Merger (the  "Closing")  shall take place as
soon as practicable after  satisfaction of the latest to occur of the conditions
set forth in Article V hereof (the  "Closing  Date"),  at the offices of Hogan &
Hartson L.L.P., Columbia Square, 555 13th Street, N.W., Washington,  D.C. 20004,
unless another date or place is agreed to in writing by the parties hereto.
                                       A-3
<PAGE>
   1.3 Effect of the Merger. Upon the Effective Time of the Merger, the separate
existence  of Sub shall  cease and Sub  shall be merged  with and into ONS.  ONS
shall  survive the Merger,  and the separate  corporate  existence of ONS as the
Surviving  Corporation  shall continue  unaffected and unimpaired by the Merger.
Upon and after the Effective Time of the Merger, the rights, privileges, powers,
and  franchises  of  each of the  Constituent  Corporations,  and  all  property
belonging  to each of such  Constituent  Corporations,  shall be  vested  in the
Surviving  Corporation,  but all  rights of  creditors  and all  liens  upon any
property of any of the Constituent  Corporations shall be preserved  unimpaired,
and  all  debts,   liabilities,   and  duties  of  the  respective   Constituent
Corporations shall thenceforth attach to the Surviving  Corporation,  and may be
enforced against it to the same extent as if such debts, liabilities, and duties
had been incurred or contracted by the Surviving Corporation,  all as more fully
provided under the DGCL.

   1.4  Certificate  of   Incorporation  of  the  Surviving   Corporation.   The
Certificate  of  Incorporation  of ONS as in  effect  immediately  prior  to the
Effective  Time of the Merger (the "ONS  Charter")  shall be the  certificate of
incorporation  of  the  Surviving   Corporation   (the  "Surviving   Corporation
Charter"),  except that the following  amendments  thereto are to be effected by
the Merger upon the Effective Time of the Merger:

       (a) the  Surviving  Corporation  Charter  is to be  amended  by  striking
   Article  FIRST  thereof in its  entirety  and  inserting  in lieu thereof the
   following:

       "FIRST:  The  name of the  Corporation  is  Orion  Oldco  Services,  Inc.
   (hereinafter called the 'Corporation').";

       (b) the  Surviving  Corporation  Charter  is to be  amended by adding and
   inserting,  immediately  following Article THIRTEENTH  thereof, a new Article
   FOURTEENTH thereof, to read in its entirety as follows:

       "FOURTEENTH:  Any act or transaction by or involving the Corporation that
   requires for its adoption under the General  Corporation  Law of the State of
   Delaware (the "DGCL") or this  Certificate of  Incorporation  the approval of
   the  stockholders  of the  Corporation  shall,  pursuant to subsection (g) of
   Section  251  of  the  DGCL,  require,  in  addition,  the  approval  of  the
   stockholders of Orion Newco Services,  Inc., a Delaware corporation (the name
   of which is expected to be changed to 'Orion Network Systems,  Inc.'), or any
   successor  thereto by  merger,  by the same vote as is  required  by the DGCL
   and/or by this Certificate of Incorporation."; and

   
       (c) the Surviving  Corporation  Charter is to be amended by the Surviving
   Corporation's certification, hereby made effective upon the Effective Time of
   the Merger,  in accordance  with Section 243 of the DGCL (the  "Paragraph (c)
   Certification"),  that: (i) that certain "Certificate of Designations, Rights
   and Preferences of Series A 8% Cumulative  Redeemable  Convertible  Preferred
   Stock" of ONS,  filed with the  Delaware  Secretary of State on June 17, 1994
   (the "Series A Certificate of  Designations")  prohibits the  reissuance,  as
   part of such  series of  Preferred  Stock of the  Surviving  Corporation,  of
   shares of Series A Preferred  Stock of the  Surviving  Corporation  that have
   been retired;  and (ii) a number of shares of Series A Preferred Stock of the
   Surviving  Corporation  equal  to the  number  of  Outstanding  ONS  Series A
   Preferred Shares  immediately  prior to the Effective Time of the Merger have
   been retired; and     

       (d) the  Surviving  Corporation  Charter is to be amended to increase and
   restore to 15,000 the number of shares of Series A  Preferred  Stock that the
   Surviving  Corporation  is  authorized  to issue (such  number of  authorized
   shares of Series A Preferred Stock of the Surviving  Corporation  having been
   reduced by the Paragraph (c)  Certification,  in accordance with the Series A
   Certificate of  Designations  and Section 243 of the DGCL, as a result of the
   aforesaid  retirement of shares of Series A Preferred  Stock of the Surviving
   Corporation), by striking the number (which is less than 15,000) that appears
   in the one (1) paragraph  resolution  appearing at the top of the second page
   of the Series A Certificate of Designations  (the "Series A Resolution")  (to
   the extent  that the number  "15,000" in the Series A  Resolution  shall have
   been amended and changed to such lesser number by virtue of the Paragraph (c)
   Certification), and inserting the number "15,000" in lieu thereof; and 
                                      A-4
<PAGE>
   
       (e) the Surviving  Corporation  Charter is to be amended by the Surviving
   Corporation's certification, hereby made effective upon the Effective Time of
   the Merger,  in accordance  with Section 243 of the DGCL (the  "Paragraph (e)
   Certification"),  that: (i) that certain "Certificate of Designations, Rights
   and Preferences of Series B 8% Cumulative  Redeemable  Convertible  Preferred
   Stock" of ONS,  filed with the  Delaware  Secretary of State on June 16, 1995
   (the "Series B Certificate of  Designations")  prohibits the  reissuance,  as
   part of such  series of  Preferred  Stock of the  Surviving  Corporation,  of
   shares of Series B Preferred  Stock of the  Surviving  Corporation  that have
   been retired;  and (ii) a number of shares of Series B Preferred Stock of the
   Surviving  Corporation  equal  to the  number  of  Outstanding  ONS  Series B
   Preferred Shares  immediately  prior to the Effective Time of the Merger have
   been retired; and     

       (f) the  Surviving  Corporation  Charter is to be amended to increase and
   restore  to 5,000 the number of shares of Series B  Preferred  Stock that the
   Surviving  Corporation  is  authorized  to issue (such  number of  authorized
   shares of Series B Preferred Stock of the Surviving  Corporation  having been
   reduced by the Paragraph (e)  Certification,  in accordance with the Series B
   Certificate of  Designations  and Section 243 of the DGCL, as a result of the
   aforesaid  retirement of shares of Series B Preferred  Stock of the Surviving
   Corporation),  by striking the number (which is less than 5,000) that appears
   in the one (1) paragraph resolution beginning at the bottom of the first page
   of the Series B Certificate of  Designations  and carrying over to the second
   page  thereof  (the  "Series B  Resolution")  (to the extent  that the number
   "5,000" in the Series B  Resolution  shall have been  amended  and changed to
   such  lesser  number by  virtue  of the  Paragraph  (e)  Certification),  and
   inserting the number "5,000" in lieu thereof.

   The Surviving Corporation Charter, as so amended, shall be the certificate of
incorporation of the Surviving  Corporation upon and after the Effective Time of
the Merger, unless and until duly amended,  altered,  changed,  repealed, and/or
supplemented in accordance with the DGCL (which power and right to amend, alter,
change,  repeal, and/or supplement,  at any time and from time to time after the
Effective Time of the Merger, are hereby expressly reserved).

   1.5  Bylaws  of the  Surviving  Corporation.  The  bylaws of ONS as in effect
immediately  prior to the Effective  Time of the Merger (the "ONS Bylaws") shall
be and  continue  in full  force  and  effect  as the  bylaws  of the  Surviving
Corporation  upon and after the Effective  Time of the Merger,  unless and until
duly amended, altered, changed, repealed, and/or supplemented in accordance with
the DGCL  (which  power  and  right to  amend,  alter,  change,  repeal,  and/or
supplement,  at any time and from time to time after the  Effective  Time of the
Merger, are hereby expressly reserved).

   1.6 Directors of the Surviving Corporation. The respective numbers of members
constituting  the  whole  Board  of  Directors  of ONS and  each  class  thereof
immediately  prior to the Effective  Time of the Merger shall be and continue as
the respective  numbers of members  constituting the whole Board of Directors of
the  Surviving  Corporation  and each class thereof upon and after the Effective
Time of the Merger,  unless and until duly  increased or decreased in accordance
with the DGCL (which  power and right to increase or  decrease,  at any time and
from time to time after the Effective Time of the Merger,  are hereby  expressly
reserved). Each person serving as a member of a particular class of the Board of
Directors of ONS (the "ONS Board")  immediately  prior to the Effective  Time of
the Merger  shall be and  continue as a member of the same class of the Board of
Directors of the Surviving  Corporation upon and after the Effective Time of the
Merger,  until such  person's  successor is elected and  qualified or until such
person's earlier death, resignation,  disqualification,  or removal (which power
and right to remove are hereby expressly reserved).

   1.7 Officers of the Surviving Corporation.  Each person serving as an officer
of ONS  immediately  prior  to the  Effective  Time of the  Merger  shall be and
continue as an officer of the Surviving Corporation,  holding the same office or
offices,  upon and after the Effective  Time of the Merger,  until such person's
successor  is appointed  and  qualified or until such  person's  earlier  death,
resignation,  disqualification,  or removal (which power and right to remove are
hereby expressly reserved).

   1.8 Further Assurances.  At any time and from time to time upon and after the
Effective  Time of the Merger,  as and when required or deemed  desirable by the
Surviving  Corporation  or its  successors or assigns,  there shall be executed,
acknowledged, certified, sealed, delivered, filed, and/or recorded, in the
                                       A-5
<PAGE>
name  and on  behalf  of any  and  each  Constituent  Corporation,  such  deeds,
contracts, consents, certificates, notices, and other documents and instruments,
and there shall be done or taken or caused to be done or taken,  in the name and
on behalf of any and each Constituent Corporation, such further and other things
and actions as shall be  appropriate,  necessary,  or convenient to acknowledge,
vest,  effect,  perfect,  conform of record,  or otherwise confirm the Surviving
Corporation's (or its successors' or assigns') right, title, and interest in and
to, and possession of, all the property,  interests, assets, rights, privileges,
immunities,  powers,  franchises,  and authority of each Constituent Corporation
held  immediately  prior to the Effective  Time of the Merger,  and otherwise to
carry out and effect the intent and purposes of this  Agreement  and the Merger.
The officers and directors of the Surviving  Corporation  (or its  successors or
assigns), and each of them, upon and after the Effective Time of the Merger, are
and shall be fully  authorized,  in the name and on  behalf of each  Constituent
Corporation,  to do and take and  cause  to be done and  taken  any and all such
things and actions, and to execute,  acknowledge,  certify, seal, deliver, file,
and/or  record  any and  all  such  deeds,  contracts,  consents,  certificates,
notices, and other documents and instruments.

                                   ARTICLE II
                             EFFECT OF THE MERGER ON
                THE CAPITAL STOCK OF THE CONSTITUENT CORPORATIONS

   
   2.1 Effect on Capital Stock. Upon and as of the Effective Time of the Merger,
by virtue of the Merger and without any action on the part of the holders of the
respective shares:
    

       (a) Conversion of ONS Shares.

   
           (i)  Each  of the  Outstanding  ONS  Common  Shares  and  each of the
       Treasury ONS Common Shares shall be changed and converted  into the right
       to receive one (1) validly issued, fully paid, and nonassessable share of
       Newco Common  Stock (such right to be  exercised  and deemed to have been
       exercised by the respective holders of such Outstanding ONS Common Shares
       and by ONS as to the Treasury ONS Common Shares, and such shares of Newco
       Common  Stock to be  issued  and  deemed  to have  been  issued by Newco,
       automatically  and  immediately  upon and as of the Effective Time of the
       Merger);   such   Outstanding  ONS  Common  Shares  shall  no  longer  be
       outstanding and such  Outstanding ONS Common Shares and such Treasury ONS
       Common Shares  automatically shall be retired as permitted under the DGCL
       and resume the status of authorized  and unissued  shares of Common Stock
       of the Surviving  Corporation;  the capital of the Surviving  Corporation
       shall be reduced as  permitted  under the DGCL by an amount  equal to the
       capital theretofore represented by such Outstanding ONS Common Shares and
       such Treasury ONS Common  Shares;  and the capital of Newco in respect of
       such shares of Newco Common Stock shall be  determined at an amount equal
       to the aggregate par value thereof as permitted under the DGCL.

           (ii) Each of the Outstanding  ONS Series A Preferred  Shares shall be
       changed and converted  into the right to receive one (1) validly  issued,
       fully paid,  and  nonassessable  share of Newco Series A Preferred  Stock
       (such  right to be  exercised  and deemed to have been  exercised  by the
       respective holders of such Outstanding ONS Series A Preferred Shares, and
       such shares of Newco Series A Preferred  Stock to be issued and deemed to
       have been issued by Newco,  automatically  and immediately upon and as of
       the Effective  Time of the Merger;  with rights to accrued,  accumulated,
       and unpaid  dividends on each  Outstanding  ONS Series A Preferred  Share
       (the  "Series A  Accumulated  Dividends")  being  preserved,  unimpaired,
       unchanged,  and unaffected by such conversion and the Merger, such Series
       A  Accumulated  Dividends  carrying  over  and  pertaining  to and  being
       accrued,  accumulated,  and unpaid  dividends on each such share of Newco
       Series A Preferred Stock, and each such share of Newco Series A Preferred
       Stock carrying and having such Series A Accumulated Dividends as accrued,
       accumulated,  and unpaid  dividends  thereon,  notwithstanding  that such
       dividends  shall have  accrued and  accumulated  from a date prior to the
       issuance  of such  shares  of  Newco  Series  A  Preferred  Stock);  such
       Outstanding ONS Series A Preferred  Shares shall no longer be outstanding
       and automatically shall be retired as permitted under the DGCL and resume
       the status of autho-    
                                       A-6
<PAGE>
   
       rized  and  unissued   shares  of  Preferred   Stock  of  the   Surviving
       Corporation; the capital of the Surviving Corporation shall be reduced as
       permitted  under the DGCL by an amount  equal to the capital  theretofore
       represented by such  Outstanding ONS Series A Preferred  Shares;  and the
       capital of Newco in respect of such  shares of Newco  Series A  Preferred
       Stock shall be  determined  at an amount equal to the aggregate par value
       thereof as permitted under the DGCL.

           (iii) Each of the Outstanding ONS Series B Preferred  Shares shall be
       changed and converted  into the right to receive one (1) validly  issued,
       fully paid,  and  nonassessable  share of Newco Series B Preferred  Stock
       (such  right to be  exercised  and deemed to have been  exercised  by the
       respective holders of such Outstanding ONS Series B Preferred Shares, and
       such shares of Newco Series B Preferred  Stock to be issued and deemed to
       have been issued by Newco,  automatically  and immediately upon and as of
       the Effective  Time of the Merger;  with rights to accrued,  accumulated,
       and unpaid  dividends on each  Outstanding  ONS Series B Preferred  Share
       (the  "Series B  Accumulated  Dividends")  being  preserved,  unimpaired,
       unchanged,  and unaffected by such conversion and the Merger, such Series
       B  Accumulated  Dividends  carrying  over  and  pertaining  to and  being
       accrued,  accumulated,  and unpaid  dividends on each such share of Newco
       Series B Preferred Stock, and each such share of Newco Series B Preferred
       Stock carrying and having such Series B Accumulated Dividends as accrued,
       accumulated,  and unpaid  dividends  thereon,  notwithstanding  that such
       dividends  shall have  accrued and  accumulated  from a date prior to the
       issuance  of such  shares  of  Newco  Series  B  Preferred  Stock);  such
       Outstanding ONS Series B Preferred  Shares shall no longer be outstanding
       and automatically shall be retired as permitted under the DGCL and resume
       the status of authorized  and unissued  shares of Preferred  Stock of the
       Surviving Corporation;  the capital of the Surviving Corporation shall be
       reduced as  permitted  under the DGCL by an amount  equal to the  capital
       theretofore  represented  by such  Outstanding  ONS  Series  B  Preferred
       Shares;  and the  capital  of Newco in  respect  of such  shares of Newco
       Series B Preferred  Stock shall be  determined  at an amount equal to the
       aggregate par value thereof as permitted under the DGCL.     

           (iv) Fractional  Outstanding  ONS Shares and fractional  Treasury ONS
       Common  Shares shall be changed and  converted  into the right to receive
       fractional  shares  of  Newco  stock  at the  same  ratio  (1:1) as whole
       Outstanding  ONS Shares and whole  Treasury  ONS Common  Shares and shall
       otherwise be treated the same as such whole  shares for  purposes  hereof
       ("Outstanding  ONS  Shares"  meaning  all of the  Outstanding  ONS Common
       Shares and all of the Outstanding ONS Preferred Shares, collectively).

   
       (b) Conversion of Sub Shares.  The  Outstanding Sub Common Share shall be
   changed  and  converted  into a number of validly  issued,  fully  paid,  and
   nonassessable  shares of Common Stock of the Surviving  Corporation  which is
   equal to the number of Outstanding ONS Common Shares immediately prior to the
   Effective  Time of the Merger,  a number of validly  issued,  fully paid, and
   nonassessable shares of Series A Preferred Stock of the Surviving Corporation
   which is equal to the number of  Outstanding  ONS Series A  Preferred  Shares
   immediately  prior to the  Effective  Time of the  Merger,  and a  number  of
   validly issued,  fully paid, and  nonassessable  shares of Series B Preferred
   Stock  of  the  Surviving  Corporation  which  is  equal  to  the  number  of
   Outstanding ONS Series B Preferred Shares  immediately prior to the Effective
   Time of the Merger (such shares of Common Stock of the Surviving Corporation,
   such shares of Series A Preferred  Stock of the  Surviving  Corporation,  and
   such shares of Series B Preferred  Stock of the Surviving  Corporation  to be
   issued  and  deemed  to  have  been  issued  by  the  Surviving   Corporation
   automatically  and  immediately  upon  and as of the  Effective  Time  of the
   Merger);  the capital of the Surviving  Corporation in respect of such shares
   of  Common  Stock of the  Surviving  Corporation,  such  shares  of  Series A
   Preferred  Stock of the  Surviving  Corporation,  and such shares of Series B
   Preferred Stock of the Surviving Corporation shall be determined at an amount
   equal to the aggregate par value thereof as permitted under the DGCL and such
   Outstanding Sub Common Share shall no longer be outstanding and automatically
   shall be canceled and cease to exist.
    
                                       A-7
<PAGE>
   2.2 Notification of Transfer Agent.  Prior to the Closing Date, Newco and ONS
shall notify their  respective  transfer  agents of the conversions of shares of
ONS stock and of shares of Sub stock pursuant to Section 2.1.

   2.3 Stock  Certificates.  Upon and as of the Effective Time of the Merger, by
virtue  of the  Merger  and  without  any  action  on the part of  either of the
Constituent  Corporations or Newco, the holders of the respective shares, or any
other person:

       (a)  Newco.  The  shares of Newco  Common  Stock and the  shares of Newco
   Preferred Stock, which the Outstanding ONS Shares and the Treasury ONS Common
   Shares,  respectively,  shall have been  converted into the right to receive,
   shall be  represented  and  evidenced  by the same  stock  certificates  that
   previously  represented  and evidenced such  Outstanding  ONS Shares and such
   Treasury ONS Common Shares; and

       (b) ONS.  The holder of the  certificate  that  immediately  prior to the
   Effective Time of the Merger  evidenced the Outstanding Sub Common Share (the
   "Sub Common Stock  Certificate") may, at such holder's option,  surrender the
   same to the Surviving Corporation for cancellation,  and such holder shall be
   entitled to receive  from the  Surviving  Corporation  in  exchange  therefor
   certificates representing and evidencing the number of shares of Common Stock
   of the  Surviving  Corporation,  the  number of shares of Series A  Preferred
   Stock of the  Surviving  Corporation,  and the  number  of shares of Series B
   Preferred  Stock  of the  Surviving  Corporation  into  which  such  holder's
   Outstanding  Sub  Common  Share  shall  have  been   converted,   and,  until
   surrendered,  the Sub Common Stock  Certificate  shall represent and evidence
   the number of shares of Common Stock of the Surviving Corporation, the number
   of shares of Series A Preferred Stock of the Surviving  Corporation,  and the
   number of shares of Series B  Preferred  Stock of the  Surviving  Corporation
   into which the  Outstanding  Sub Common  Share  theretofore  represented  and
   evidenced thereby shall have been converted.

                                   ARTICLE III
                              ADDITIONAL AGREEMENTS

   3.1 Directors and Officers of Newco Upon the Effective Time of the Merger.

   
       (a)  Directors.  As of the  Effective  Time of the Merger:  (i) the whole
   Board of  Directors of Newco shall be divided into the same number of classes
   into which the whole Board of Directors  of ONS shall be divided  immediately
   prior to the Effective  Time of the Merger;  (ii) the  respective  numbers of
   members  constituting  the whole Board of  Directors  of Newco and each class
   thereof shall be equal to the respective numbers of members  constituting the
   whole Board of Directors of ONS and each class thereof  immediately  prior to
   the Effective  Time of the Merger;  and (iii) the Board of Directors of Newco
   (the  "Newco  Board")  and each class  thereof  shall  consist of the persons
   serving  as members of the ONS Board and the  corresponding  classes  thereof
   immediately prior to the Effective Time of the Merger. To that end, effective
   immediately  prior  to the  Effective  Time  of  the  Merger,  to the  extent
   necessary  to give effect to the intent of the  preceding  sentence:  (i) the
   whole Board of  Directors  of Newco shall be divided  into the same number of
   classes into which the whole Board of Directors of ONS is then divided;  (ii)
   the respective  numbers of members  constituting the whole Board of Directors
   of Newco and each class thereof shall be increased or decreased,  as the case
   may  be,  to  numbers  equal  to  the  respective  numbers  of  members  then
   constituting the whole Board of Directors of ONS and each class thereof;  and
   (iii)  each  person  then  serving  as a member of the Newco  Board  shall be
   removed, and each person then serving as a member of a class of the ONS Board
   shall be elected as a member of the  corresponding  class of the Newco Board,
   to serve as such until such  person's  successor is elected and  qualified or
   until such person's earlier death, resignation,  disqualification, or removal
   (which power and right to remove are hereby expressly reserved).     

       (b)  Officers.  As of the Effective  Time of the Merger,  the officers of
   Newco shall be the persons  serving as officers of ONS  immediately  prior to
   the Effective Time of the Merger. To that end, effective immediately prior to
   the Effective Time of the Merger, to the extent necessary to give
                                       A-8
<PAGE>
   
   effect to the intent of the preceding  sentence,  each person then serving as
   an officer of Newco  shall be removed,  and each  person  then  serving as an
   officer of ONS shall be appointed as an officer of Newco,  to hold one (1) or
   more  offices of Newco  corresponding  to the one (1) or more  offices of ONS
   then held, until such person's  successor is appointed and qualified or until
   such person's earlier death, resignation, disqualification, or removal (which
   power and right to remove are hereby expressly reserved).
    

   3.2 Newco Certificate of Incorporation.

       (a)  Newco  Charter.  As  of  the  Effective  Time  of  the  Merger,  the
   certificate of incorporation of Newco shall contain  provisions  identical to
   the ONS Charter (the "Newco  Charter").  To that end,  prior to the Effective
   Time of the Merger, to the extent  permissible and to the extent necessary to
   give  effect to the intent of the  preceding  sentence,  the  certificate  of
   incorporation  of  Newco,  as the same  theretofore  may have  been  amended,
   altered,  changed,  repealed,  and/or  supplemented,  shall be duly  amended,
   altered, changed, repealed, and/or supplemented, in accordance with the DGCL,
   and (subject to paragraph  (b) of this  Section)  such Newco  Charter,  as so
   altered,  changed,  repealed,  and/or  supplemented,  shall be and remain the
   certificate  of  incorporation  of Newco upon and after the Effective Time of
   the Merger, unless and until duly amended, altered, changed, repealed, and/or
   supplemented  in  accordance  with the DGCL (which  power and right to amend,
   alter, change,  repeal, and/or supplement,  at any time and from time to time
   after the Effective Time of the Merger, are hereby expressly reserved).

       (b) Name Change;  Newco Series C Preferred Stock. The Newco Charter shall
   be amended and supplemented (which amendment shall be adopted,  approved, and
   declared  advisable by the Newco Board and adopted and approved by ONS in its
   capacity as the sole  stockholder of Newco prior to the Effective Time of the
   Merger, and which supplement shall be adopted and approved by the Newco Board
   prior to the Effective Time of the Merger, and which amendment and supplement
   are hereby adopted, approved, and declared advisable):

           (i) immediately following the Effective Time of the Merger, to change
       the name of Newco to "Orion Network  Systems,  Inc.," by striking Article
       FIRST  thereof  in  its  entirety  and  inserting  in  lieu  thereof  the
       following:

       "FIRST:  The name of the  Corporation  is  Orion  Network  Systems,  Inc.
   (hereinafter called the 'Corporation')."; and

           (ii) as soon  as  practicable  following  the  Effective  Time of the
       Merger, to provide for the Newco Series C Preferred Stock.

   3.3 Newco Bylaws. As of the Effective Time of the Merger, the bylaws of Newco
shall contain  provisions  identical to the ONS Bylaws (the "Newco Bylaws").  To
that end, prior to the Effective Time of the Merger,  to the extent necessary to
give effect to the intent of the preceding sentence, the bylaws of Newco, as the
same  theretofore  may have been amended,  altered,  changed,  repealed,  and/or
supplemented,   shall  be  duly  amended,  altered,  changed,  repealed,  and/or
supplemented,  in accordance with the DGCL, and such Newco Bylaws as so amended,
altered, changed, repealed, and/or supplemented,  shall be and remain the bylaws
of Newco upon and after the Effective Time of the Merger,  unless and until duly
amended, altered, changed,  repealed, and/or supplemented in accordance with the
DGCL (which power and right to amend, alter, change,  repeal, and/or supplement,
at any time and from time to time after the  Effective  Time of the Merger,  are
hereby expressly reserved).

   3.4  Consent.  Each of ONS,  Sub,  and  Newco  shall  promptly  apply  for or
otherwise  seek, and use its best efforts to obtain,  all consents and approvals
required to be obtained by it for consummation of the Merger.

   3.5 ONS Stockholder  Meeting; Sub Stockholder Written Consent. ONS shall call
a special meeting of its stockholders  (the "ONS Special Meeting") to be held as
promptly as  practicable  after the date hereof for the purpose of voting  upon,
among other things,  ratification  of this Agreement (the parties  understanding
and  acknowledging  that it is contemplated  that the Merger will be effected in
accordance with
                                       A-9
<PAGE>
Section  251(g)  of the  DGCL  and  that no vote of ONS  stockholders  adopting,
approving,  or  authorizing  this Agreement or the Merger will be required under
the DGCL). Newco, in its capacity as the sole stockholder of Sub, as promptly as
practicable  after the date hereof,  shall  execute and deliver to Sub a written
consent in lieu of a stockholder  meeting adopting,  approving,  and authorizing
this Agreement, in accordance with Section 228 of the DGCL.

   3.6 Employee and Director  ONS Stock  Options.  Upon and as of the  Effective
Time of the Merger and in  connection  with the Merger,  to the  fullest  extent
permitted by applicable  law, Newco shall assume all of ONS's  obligations,  and
ONS shall  have no further  obligations,  with  respect to any  then-outstanding
option to acquire  shares of ONS Common Stock  issued under ONS's 1987  Employee
Stock Option Plan and  Non-Employee  Director Stock Option Plan that theretofore
shall not have expired or been duly exercised by the holders  thereof (each,  if
any, an "ONS  Option"),  and the due  exercise  of rights  under any such option
shall entitle the holder thereof to acquire,  upon the same terms and conditions
that were applicable under the  corresponding  ONS Option, a number of shares of
Newco  Common  Stock  identical to the number of shares of ONS Common Stock that
were subject to such corresponding ONS Option (a "Newco Option").  ONS and Newco
agree to take all corporate and other action as shall be necessary to effectuate
the foregoing,  and ONS shall use its best efforts to obtain, if required, prior
to the Closing  Date,  such  consent of each holder of an ONS Option as shall be
necessary to effectuate the foregoing.  Newco shall take all corporate and other
action  necessary  to  reserve  and make  available  for  issuance  upon the due
exercise  of rights  under the Newco  Options a  sufficient  number of shares of
Newco Common Stock,  and as soon as practicable  following the Effective Time of
the Merger shall provide to the record holders of the Newco Options  appropriate
notice of such holder's rights thereunder.

   3.7  Warrants.  Upon  and as of the  Effective  Time  of  the  Merger  and in
connection with the Merger,  to the fullest extent  permitted by applicable law,
Newco  shall  assume  all of ONS's  obligations,  and ONS shall  have no further
obligations,  with  respect to any  then-outstanding  warrant or other  right to
purchase shares of ONS Common Stock that  theretofore  shall not have expired or
been duly exercised by the holder thereof (each, if any, an "ONS Warrant"),  and
the due exercise of rights  under any such warrant or other right shall  entitle
the holder  thereof to  acquire,  upon the same terms and  conditions  that were
applicable  under the  corresponding  ONS  Warrant,  a number of shares of Newco
Common  Stock  identical  to the number of shares of ONS Common  Stock that were
subject to such  corresponding  ONS Warrant (a "Newco  Warrant").  ONS and Newco
agree to take all corporate and other action as shall be necessary to effectuate
the foregoing,  and ONS shall use its best efforts to obtain, if required, prior
to the Closing  Date,  such  consents of the holders of ONS Warrants as shall be
necessary to effectuate the foregoing.  Newco shall take all corporate and other
action necessary to reserve and make available for issuance upon the exercise of
rights under the Newco  Warrants a  sufficient  number of shares of Newco Common
Stock,  and as soon as  practicable  following the Effective  Time of the Merger
shall provide to the record holders of the Newco Warrants  appropriate notice of
such holders' rights thereunder.

   
   3.8 Outstanding  Newco Common Share. Upon and as of the Effective Time of the
Merger,   ONS  shall  surrender  to  Newco  the  certificate   representing  the
Outstanding   Newco  Common  Share,  and  the  Outstanding  Newco  Common  Share
automatically shall be retired as permitted under the DGCL and resume the status
of an authorized  and unissued  share of Newco Common Stock,  and the capital of
Newco shall be reduced as permitted under the DGCL by an amount equal to the par
value thereof.
    

                                   ARTICLE IV
                         REPRESENTATIONS AND WARRANTIES

   4.1  Representations  and  Warranties  of  ONS.  ONS  hereby  represents  and
warrants:

       (a) Organization.  It is duly organized,  validly  existing,  and in good
   standing as a corporation under the laws of the State of Delaware.

       (b) Power and  Authority.  It has corporate  power and authority to enter
   into, execute, deliver, and perform its obligations under this Agreement.
                                      A-10
<PAGE>
       (c) Capital Stock. The numbers of authorized  shares of ONS Common Stock,
   ONS Preferred Stock, ONS Series A Preferred Stock, and ONS Series B Preferred
   Stock, the numbers of Outstanding ONS Common Shares, Outstanding ONS Series A
   Preferred  Shares,  and  Outstanding ONS Series B Preferred  Shares,  and the
   number of Treasury  ONS Common  Shares are as set forth in paragraph A of the
   Recitals to this Agreement.

   4.2  Representations  and  Warranties  of  Sub.  Sub  hereby  represents  and
warrants:

       (a) Organization.  It is duly organized,  validly  existing,  and in good
   standing as a corporation under the laws of the State of Delaware.

       (b) Power and  Authority.  It has corporate  power and authority to enter
   into,  execute,  deliver,  and (subject to stockholder  approval) perform its
   obligations under this Agreement.

       (c) Capital Stock.  The number of authorized  shares of Sub Common Stock,
   the number of Outstanding Sub Common Shares,  and the number of shares of Sub
   Common Stock issued but not  outstanding,  are as set forth in paragraph B of
   the Recitals to this Agreement.

   4.3  Representations  and  Warranties of Newco.  Newco hereby  represents and
warrants:

       (a) Organization.  It is duly organized,  validly  existing,  and in good
   standing as a corporation under the laws of the State of Delaware.

       (b) Power and  Authority.  It has corporate  power and authority to enter
   into,  execute,  deliver,  and (subject to stockholder  approval) perform its
   obligations under this Agreement.

       (c) Capital  Stock.  The  numbers of  authorized  shares of Newco  Common
   Stock,  Newco  Preferred  Stock,  Newco Series A Preferred  Stock,  and Newco
   Series B Preferred  Stock,  the numbers of  Outstanding  Newco Common Shares,
   outstanding  shares of Newco Series A Preferred Stock, and outstanding shares
   of Newco Series B Preferred  Stock,  and the number of shares of Newco Common
   Stock issued but not outstanding,  are, or prior to the Effective Time of the
   Merger  will  be,  as set  forth  in  paragraph  C of the  Recitals  to  this
   Agreement.

                                    ARTICLE V
                              CONDITIONS PRECEDENT

   5.1  Conditions  to  Each  Party's  Obligation  to  Effect  the  Merger.  The
respective  obligations of each party under this  Agreement  shall be subject to
the satisfaction at or prior to the Closing of the following conditions:

   
       (a)  Stockholder  Approvals.  This Agreement shall have been approved and
   adopted or ratified,  as the case may be, by the affirmative  vote or written
   consent,  as  appropriate  and as the case may be, of the  holders of: (i) at
   least a majority of the votes of the Outstanding ONS Shares present in person
   or represented  by proxy at the ONS Special  Meeting and entitled to be voted
   hereon,  voting together as a single class,  with each Outstanding ONS Common
   Share  entitled  to one (1) vote and each  Outstanding  ONS  Preferred  Share
   entitled  to one (1) vote for each whole share of ONS Common  Stock  issuable
   upon conversion of such  Outstanding ONS Preferred Share as of the applicable
   date; (ii) the Outstanding Sub Common Share; and (iii) the Outstanding  Newco
   Common Share.     

       (b) Governmental  Approvals.  All  authorizations,  consents,  orders, or
   approvals  of, or  declarations  or filings  with,  or  expiration of waiting
   periods  imposed  by,  any  administrative  agency  or  commission  or  other
   governmental   authority   or   instrumentality,   domestic   or  foreign  (a
   "Governmental  Entity"),  necessary for the  consummation of the transactions
   contemplated  by  this  Agreement,   including,  but  not  limited  to,  such
   requirements  under  applicable  state  securities  laws  and the  Securities
   Exchange  Act of 1934,  as  amended,  shall  have  occurred  or been filed or
   obtained,  other than  filings  relating to the Merger or  affecting  Newco's
   ownership of ONS or any of its subsidiaries or any of their properties.

                                      A-11
<PAGE>
       (c)  Form  S-4.  The  Registration  Statement  on Form S-4  covering  the
   registration of the Newco Common Stock,  the Newco Series A Preferred  Stock,
   and the Newco Series B Preferred Stock shall have become  effective under the
   Securities Act of 1933, as amended,  and shall not be the subject of any stop
   order  or  proceedings  seeking  a  stop  order,  and  the  Proxy  Statement/
   Prospectus  furnished  to ONS  stockholders  regarding  this  Agreement,  the
   Exchange  Agreement,  and the  transactions  contemplated  hereby and thereby
   shall not at the Effective  Time of the Merger be subject to any  proceedings
   commenced or threatened by the Securities and Exchange Commission.

       (d)  Legal  Action.  No  temporary  restraining  order,   preliminary  or
   permanent  injunction,  or other  order  issued  by any  court  of  competent
   jurisdiction  or other  legal  restraint  or  prohibition  (an  "Injunction")
   preventing the  consummation of the Merger shall be in effect,  nor shall any
   proceeding brought by any Governmental Entity seeking any of the foregoing be
   pending. In the event an Injunction shall have been issued, each party agrees
   to use its reasonable diligent efforts to have the Injunction lifted.

       (e) Statutes. No statute,  rule, or regulation shall have been enacted by
   any  Governmental  Entity  that  would  make the  consummation  of the Merger
   illegal.

   
       (f) Tax Opinion; ONS Board Determination. Ernst & Young shall have issued
   the Tax  Opinion and the ONS Board shall not have  altered or  rescinded  its
   determination  that ONS stockholders do not recognize gain or loss for United
   States federal income tax purposes.
    

       (g)  Representations  and  Warranties.  Each of the  representations  and
   warranties  made by each  party  herein  shall  remain  true,  complete,  and
   accurate at the Closing Date as if made on and as of the Closing Date.

       (h) The  Exchange.  The  Exchange  shall have  occurred  or be  occurring
   concurrently with the Merger.

                                   ARTICLE VI
                       TERMINATION, AMENDMENT AND WAIVER

   6.1  Termination.  This  Agreement may be terminated at any time prior to the
Effective Time of the Merger,  whether before or after approval or ratification,
as the  case  may  be,  by the  stockholders  of ONS,  Sub,  and  Newco  of this
Agreement,  the  Merger,  the  Exchange  Agreement,  the  Exchange,  or  matters
presented in connection herewith or therewith:

       (a) by mutual written consent of the parties; or

       (b) by any party if any  required  approval of the  stockholders  of ONS,
   Sub, or Newco shall not have been obtained by April 30, 1997.

   
   When action is taken to terminate this Agreement pursuant to this Section, it
shall be necessary for such action to be authorized by the Board of Directors of
the party  taking  such  action and for such party then to notify in writing the
other parties of such action.     

   6.2 Event of  Termination.  In the event of  termination of this Agreement as
provided in Section 6.1 hereof,  this Agreement shall forthwith  become void and
there  shall be no  liability  or  obligation  on the  part of any  party or its
officers or directors to the other parties.

   6.3  Expenses.  All costs  and  expenses  incurred  in  connection  with this
Agreement and the  transactions  contemplated  hereby shall be paid by the party
incurring such expense.

   6.4 Amendment. This Agreement may be amended by the parties hereto, by action
taken by their  respective  Boards  of  Directors,  at any time  before or after
ratification or approval,  as the case may be, by the  stockholders of ONS, Sub,
or Newco of this Agreement, the Merger, the Exchange Agreement, the Exchange, or
matters  presented  in  connection  herewith  or  therewith,  but after any such
stockholder  approval,  no amendment shall be made which under Section 251(d) of
the DGCL would  require the  approval  (or  further  approval)  of  stockholders
without  obtaining  such further  approval.  This  Agreement  may not be amended
except by an  instrument  in  writing  signed  on behalf of each of the  parties
hereto.
                                      A-12
<PAGE>
                                   ARTICLE VII
                               GENERAL PROVISIONS

   7.1  Notices.  All notices  and other  communications  hereunder  shall be in
writing  and  shall be  deemed  given  if  delivered  personally  or  mailed  by
registered or certified  mail (return  receipt  requested) to the parties at the
following  addresses (or at such other address for a party as shall be specified
by like notice):

       (a) If to Newco or Sub, to

       Orion Newco Services, Inc.
       2440 Research Boulevard
       Suite 400
       Rockville, Maryland 20850

       (b) If to ONS, to

       Orion Network Systems, Inc.
       2440 Research Boulevard
       Suite 400
       Rockville, Maryland 20850

   7.2  Severability.  If any  term or  other  provision  of this  Agreement  is
invalid,  illegal,  or incapable of being  enforced by any rule of law or public
policy,  all other terms,  conditions,  and provisions of this  Agreement  shall
nevertheless  remain in full force and effect so long as the  economic  or legal
substance of the transactions  contemplated hereby is not affected in any manner
adverse to any party. Upon such  determination  that any term or other provision
is invalid,  illegal,  or incapable of being enforced,  the parties hereto shall
negotiate  in good faith to modify this  Agreement  so as to effect the original
intent of the parties as closely as possible in an acceptable  manner to the end
that the transactions contemplated hereby are fulfilled to the extent possible.

   7.3 Entire Agreement. This Agreement,  including the Exhibits attached hereto
(if any),  constitutes  the entire  agreement  among the parties  regarding  the
subject matter hereof,  and  supersedes all prior  agreements and  undertakings,
both written and oral,  among the parties or any of them  regarding such subject
matter.

   7.4  Assignment.  This Agreement shall not be assigned by operation of law or
otherwise.

   7.5  Parties in  Interest.  This  Agreement  shall be binding  upon and inure
solely to the  benefit  of each party  hereto,  and  nothing in this  Agreement,
except as otherwise  expressly  provided herein,  is intended to or shall confer
upon any other  person any right,  benefit,  or remedy of any nature  whatsoever
under or by reason of this Agreement.

   7.6 Counterparts. This Agreement may be executed in one or more counterparts,
all of which shall be considered  one and the same  Agreement,  and shall become
effective when one or more  counterparts have been signed by each of the parties
and delivered to the other parties,  it being  understood  that all parties need
not sign the same counterpart.

   7.7  Governing  Law.  This  Agreement  shall  be  governed  in all  respects,
including  validity,  interpretation,  and  effect,  by the laws of the State of
Delaware (without reference to conflict of laws rules thereof).

   7.8 Agreement.  Upon and after the Effective Time of the Merger,  an executed
counterpart  of this  Agreement  shall be on file at an office of the  Surviving
Corporation,  located at 2440 Research Boulevard, Suite 400, Rockville, Maryland
20850,  and a copy  of  this  Agreement  shall  be  furnished  by the  Surviving
Corporation,  on request and without cost, to any stockholder of any Constituent
Corporation.

   
   7.9   Certificates  of  Secretaries.   The  Certificates  of  the  respective
Secretaries  of the parties to be  attached  hereto are hereby  incorporated  by
reference and shall be deemed on and part of this Agreement.
    
                                      A-13
<PAGE>
   
   IN WITNESS  WHEREOF,  Newco,  Sub and ONS have  caused this  Agreement  to be
executed,  acknowledged,  and delivered by their respective  officers  thereunto
duly authorized, all as of the date first written above.



                              ORION NEWCO SERVICES, INC.


                              By: /s/ W. Neil Bauer
                                  ----------------------------------------------
                              Name: W. Neil Bauer
                                  ----------------------------------------------
                              Title: President and Chief Executive Officer
                                  ----------------------------------------------
                                     

                              ORION MERGER COMPANY, INC.


                              By: /s/ W. Neil Bauer
                                  ----------------------------------------------
                              Name: W. Neil Bauer
                                  ----------------------------------------------
                              Title: President and Chief Executive Officer
                                  ----------------------------------------------

                              ORION NETWORK SYSTEMS, INC.


                              By: /s/ W. Neil Bauer
                                  ----------------------------------------------
                              Name: W. Neil Bauer
                                  ----------------------------------------------
                              Title: President and Chief Executive Officer
                                  ----------------------------------------------
    
                                      A-14
<PAGE>
                         CERTIFICATE OF THE SECRETARY OF
               ORION MERGER COMPANY, INC., A DELAWARE CORPORATION

   
   The  undersigned,  the  Secretary of Orion Merger  Company,  Inc., a Delaware
corporation  ("Sub"),  does hereby certify that the foregoing Plan and Agreement
of Merger (the "Agreement") of Sub with and into Orion Network Systems,  Inc., a
Delaware  corporation  ("ONS"), by and among Sub, ONS, and Orion Newco Services,
Inc., a Delaware corporation ("Newco"), after first having been duly adopted and
approved by the Board of Directors of Sub and executed and  acknowledged  by Sub
in accordance  with Section 251 of the General  Corporation  Law of the State of
Delaware  (the  "DGCL"),  has  been  duly  approved  and  adopted  by  the  sole
stockholder  of Sub entitled to vote thereon in  accordance  with Section 251 of
the DGCL, as of ___________1997, by written  consent in accordance  with Section
228 of the DGCL.     

   This  Certificate  shall  be  attached  to and  deemed  on and a part  of the
Agreement.

   
   IN WITNESS WHEREOF, the  undersigned  has executed this Certificate as of the
day of       , 1997.






                                                   -----------------------------
                                                   Signature
                                      A-15
    
<PAGE>
   
                         CERTIFICATE OF THE SECRETARY OF
               ORION NETWORK SYSTEMS, INC., A DELAWARE CORPORATION

   The  undersigned,  the Secretary of Orion Network  Systems,  Inc., a Delaware
corporation  ("ONS"),  does hereby certify that the foregoing Plan and Agreement
of  Merger  (the  "Agreement")  of  Orion  Merger  Company,   Inc.,  a  Delaware
corporation  ("Sub"),  with and into ONS, by and among Sub, ONS, and Orion Newco
Services,  Inc.,  a Delaware  corporation  ("Newco"),  has been duly adopted and
approved by the Board of Directors of ONS on        1997, pursuant to subsection
(g) of Section 251 of the General Corporation Law of the State of Delaware  (the
"DGCL"),  and  that the  conditions  specified  in the  first  sentence  of said
subsection (g) of Section 251 of the DGCL have been satisfied.     

   This  Certificate  shall  be  attached  to and  deemed  on and a part  of the
Agreement.

   
   IN WITNESS  WHEREOF,  the undersigned has executed this Certificate as of the
day of            , 1997.




                                                  ------------------------------
                                                  Signature
                                      A-16
    
<PAGE>
   
                         CERTIFICATE OF THE SECRETARY OF
               ORION NEWCO SERVICES, INC., A DELAWARE CORPORATION

   The  undersigned,  the  Secretary of Orion Newco  Services,  Inc., a Delaware
corporation ("Newco"), does hereby certify that the foregoing Plan and Agreement
of  Merger  (the  "Agreement")  of  Orion  Merger  Company,   Inc.,  a  Delaware
corporation  ("Sub"),  with and into Orion  Network  Systems,  Inc.,  a Delaware
corporation  ("ONS"),  by and among Sub, ONS, and Newco, after first having been
duly  adopted and  approved by the Board of  Directors of Newco and executed and
acknowledged  by  Newco,  has  been  duly  approved  and  adopted  by  the  sole
stockholder of Newco entitled to vote thereon, as of                   , 1997.

   This  Certificate  shall  be  attached  to and  deemed  on and a part  of the
Agreement.

   IN WITNESS  WHEREOF,  the undersigned has executed this Certificate as of the
day of                , 1997.



                                                  ------------------------------
                                                  Signature
                                      A-17
    
<PAGE>
   
                                                                    ATTACHMENT B





              SECTION 351 EXCHANGE AGREEMENT AND PLAN OF CONVERSION

                                      AMONG

                 INTERNATIONAL PRIVATE SATELLITE PARTNERS, L.P.

                          ORION NETWORK SYSTEMS, INC.,

                          ORION SATELLITE CORPORATION,

                     BRITISH AEROSPACE COMMUNICATIONS, INC.

                    COM DEV SATELLITE COMMUNICATIONS LIMITED

                  KINGSTON COMMUNICATIONS INTERNATIONAL LIMITED

                LOCKHEED MARTIN COMMERCIAL LAUNCH SERVICES, INC.

                                MCN SAT US, INC.

                                       AND

                         TRANS-ATLANTIC SATELLITE, INC.

                                   DATED AS OF

                                  JUNE ___ 1996
    
<PAGE>
              SECTION 351 EXCHANGE AGREEMENT AND PLAN OF CONVERSION

   
   THIS SECTION 351 EXCHANGE AGREEMENT AND PLAN OF CONVERSION (this "Agreement")
is  entered  into as of June  1996,  between  and  among  International  Private
Satellite  Partners,  L.P., a Delaware limited  partnership  ("Orion Atlantic");
Orion Network Systems,  Inc., a Delaware  corporation  ("ONS");  Orion Satellite
Corporation,  a Delaware  corporation  ("OrionSat");  and each of the  following
entities  that  executes and delivers a signature  page hereto on or before July
12,  1996:  British  Aerospace  Communications,  Inc.,  a  Delaware  corporation
("BAe"), COM DEV Satellite  Communications Limited, a Canadian corporation ("COM
DEV"),  Kingston  Communications  International  Limited, a company incorporated
under  the laws of  England  ("Kingston"),  Lockheed  Martin  Commercial  Launch
Services,  Inc., a Delaware corporation ("Lockheed Martin"), MCN Sat US, Inc., a
Delaware corporation ("MCN Sat"), and Trans Atlantic Satellite, Inc., a Delaware
corporation ("TA Sat") (collectively, the "Exchanging Partners").
    

   WHEREAS,  ONS  and  the  Exchanging  Partners  (collectively,   the  "Limited
Partners") collectively own limited partnership interests in Orion Atlantic;

   WHEREAS, OrionSat is the sole general partner of Orion Atlantic;

   WHEREAS,  ONS and the Exchanging  Partners  desire to (i) form a new Delaware
corporation  to be named  Orion Newco  Services,  Inc.  ("Newco")  substantially
identical in all material  respects  (including  with respect to  certificate of
incorporation,  bylaws,  capital  structure,  and similar matters) to ONS in the
Newco  Formation (as defined  below);  (ii) have a newly  created  subsidiary of
Newco  merge  into ONS in a  transaction  in which all  capital  stock of ONS is
exchanged for equivalent capital stock (common or preferred, as applicable, with
the same relative rights and  preferences) of Newco,  and in which ONS becomes a
wholly owned  subsidiary  of Newco in the Merger (as defined  below);  and (iii)
have the Exchanging  Partners  transfer their limited  partnership  interests in
Orion  Atlantic  to Newco in  exchange  for shares of a newly  created  class of
Series C 6%  Cumulative  Convertible  Redeemable  Preferred  Stock of Newco (the
"Newco  Preferred  Stock") on the terms and  conditions  set forth herein in the
Exchange (as defined below), all pursuant to Section 351 of the Internal Revenue
Code of 1986, as amended (the "Code"); and

   WHEREAS,  in  connection  with  the  transactions   described  in  the  prior
paragraph,  the Credit  Facility  Refinancing,  Bond  Offering,  Bank  Agreement
Termination,   Capacity  Agreement  Termination  and  Convertible   Subordinated
Debenture  Offering  (as  defined  below)  will  be  pursued.  The  transactions
contemplated  by this  Agreement are believed to be necessary to accomplish  the
Credit Facility Refinancing, Bond Offering, Bank Agreement Termination, Capacity
Agreement Termination and Convertible  Subordinated  Debenture Offering, and all
parties  hereto,   including  the  Exchanging   Partners,   which  will  be  the
stockholders of Newco immediately after completion of the Exchange, believe that
they will  benefit  substantially  from the Credit  Facility  Refinancing,  Bond
Offering,  Bank  Agreement  Termination,   Capacity  Agreement  Termination  and
Convertible Subordinated Debenture Offering.

   NOW, THEREFORE, in consideration of the foregoing and of the mutual covenants
and  agreements  hereinafter  set forth,  the  parties  hereto  hereby  agree as
follows:

1. DEFINITIONS

   For all purposes of this Agreement,  certain  capitalized  terms specified in
Exhibit  A shall  have the  meanings  set  forth in that  Exhibit  A,  except as
otherwise expressly provided.

2. NEWCO FORMATION

 2.1 FORMATION OF NEW CORPORATION

   The parties  hereto shall form a new Delaware  corporation  to be named Orion
Newco Services,  Inc. which is substantially  identical in all material respects
to ONS (the "Newco Formation"). In particular, Newco shall have a certificate of
incorporation  and bylaws  substantially  identical in all material  respects to
those of ONS  (modified  to reflect the  different  name and Newco being a newly
formed corporation).
                                       B-2
<PAGE>
Pursuant to the certificate of incorporation of Newco, the board of directors of
Newco  shall  duly  adopt,   authorize,   execute  and  file   Certificates   of
Designations,  Rights  and  Preferences  of  Series A 8%  Cumulative  Redeemable
Convertible  Preferred  Stock of Newco  substantially  identical in all material
respects to the ONS Series A Preferred  Stock (as defined below) and of Series B
8% Cumulative  Redeemable  Convertible  Preferred  Stock of Newco  substantially
identical  in all  material  respects  to the ONS Series B  Preferred  Stock (as
defined below).

 2.2 INITIAL OWNERSHIP OF NEWCO

   ONS shall be the  initial  stockholder  of Newco,  and shall own one share of
Newco common stock.

 2.3 REPLICATION OF ONS MANAGEMENT

   ONS shall take the steps  necessary to make the management of Newco identical
to the management of ONS, including with respect to directors and officers.

 2.4 NEWCO FORMATION DOCUMENTS

   ONS shall cause all necessary documents (the "Newco Formation  Documents") to
effect the Newco  Formation and other  matters  referred to in Sections 2.1, 2.2
and 2.3 to be prepared and circulated to the Exchanging  Partners for review and
comment.  The  Exchanging  Partners  agree to submit any  comments  on the Newco
Formation Documents, consistent with the requirement that Newco be substantially
identical in all  material  respects to ONS,  within 10 Business  Days after all
Exchanging  Partners  have  received the initial  drafts of such  documents  and
within five Business Days after  receipt of subsequent  drafts.  ONS shall cause
final drafts of the Newco  Formation  Documents to be prepared,  consistent with
the requirement that Newco be substantially  identical in all material  respects
to ONS, and circulated to the Exchanging Partners. The Exchanging Partners shall
have a period of five Business Days after all Exchanging  Partners have received
such final drafts to raise any  objections  to the  contents of such  documents,
consistent with the  requirement  that Newco be  substantially  identical in all
material  respects to ONS,  and the  parties  shall  negotiate  in good faith to
resolve any such  objections.  The  resolution of any such  objections  shall be
reflected  in the  Newco  Formation  Documents,  and  such  documents  shall  be
finalized and  implemented.  ONS shall cause the Newco Formation  Documents,  as
finalized and implemented,  to be circulated to the Exchanging Partners.  If the
finalized Newco Formation Documents are not consistent with the requirement that
Newco  be  substantially  identical  in all  material  respects  to ONS  and any
discrepancies are not reasonably acceptable to the Exchanging Partners,  each of
the  Exchanging  Partners  shall  have the  right to  terminate  this  Agreement
pursuant  to the final  paragraph  of  Section  13.1.  If all of the  Exchanging
Partners  shall  not  have  terminated  this  Agreement  pursuant  to the  final
paragraph  of  Section  13.1  within a period of five  Business  Days  after all
Exchanging partners have received such finalized and implemented Newco Formation
Documents, the "Newco Finalization Date" shall be deemed to have occurred on the
last day of such period.

3. EXCHANGE OF INTERESTS

 3.1 NEWCO PREFERRED STOCK

   Newco  shall duly  adopt,  authorize,  execute  and file the  Certificate  of
Designations,  Rights  and  Preferences  of  Series C 6%  Cumulative  Redeemable
Convertible  Preferred  Stock  establishing  the terms and  relative  rights and
preferences  of such  series of Newco  Preferred  Stock in the form set forth as
Exhibit B to this Agreement (the  "Certificate of  Designations")  and authorize
the  issuance and sale to the  Exchanging  Partners of the  aggregate  number of
shares  of  Newco  Preferred  Stock  to be  issued  to the  Exchanging  Partners
hereunder  (and Newco shall  authorize the issuance and sale of such  additional
shares of Newco  Preferred  Stock in an  amount  equal to the  aggregate  of the
Adjustment  Amounts  referred to in Section 3.2(c)  hereof).  The Certificate of
Designations  shall be in full force and  effect  under the laws of the State of
Delaware as of the Closing Date.
                                       B-3
<PAGE>
 3.2 TERMS OF EXCHANGE

   On the basis of the  representations,  warranties  and  agreements  contained
herein, and subject to the terms and conditions  hereof,  each of the Exchanging
Partners  hereby  agrees to  transfer to Newco at the Closing all of its limited
partnership  interests in Orion  Atlantic  (individually,  an "LP  Interest" and
collectively  the "LP Interests") and other rights relating thereto as specified
below  ("Other LP  Rights")  in  exchange  for shares of Newco  Preferred  Stock
(collectively, the "Exchange"), as follows:

       (a) Transfers by the Exchanging Partners to Newco.

           (i) If BAe is an Exchanging Partner,  BAe agrees to transfer to Newco
       at the Closing its 25.00% LP Interest;  all of its rights and obligations
       under the Partnership  Agreement,  including all of its rights to receive
       distributions  and  allocations  thereunder,  and all other rights it may
       have as a limited partner of Orion Atlantic under  applicable law; all of
       its rights and obligations under the Refund  Agreement,  including all of
       its  rights  to  receive  refunds  thereunder;  all  of  its  rights  and
       obligations under the Consent and Agreement,  including all of its rights
       to transfer LP Interests  thereunder;  all of its rights and  obligations
       under the Preferred Bidders Agreement; all of its rights under the Option
       Agreement; all of its rights under the Subscription Agreement; and all of
       its  rights  and   obligations   under  the   Agreement   of   Principles
       (collectively, the "BAe Exchange Assets").

           (ii) If COM DEV is an Exchanging Partner,  COM DEV agrees to transfer
       to Newco at the  Closing  its 4.17% LP  Interest;  all of its  rights and
       obligations under the Partnership Agreement,  including all of its rights
       to receive distributions and allocations thereunder, and all other rights
       it may have as a limited partner of Orion Atlantic under  applicable law;
       all of its rights and obligations under the Refund  Agreement,  including
       all of its rights to receive  refunds  thereunder;  all of its rights and
       obligations  under  the PPU  Agreement,  including  all of its  rights to
       receive repayment of amounts advanced  thereunder and interest accrued on
       such  advances;  all of its rights and  obligations  under the  Preferred
       Bidders Agreement;  all of its rights under the Option Agreement;  all of
       its rights under the  Subscription  Agreement;  and all of its rights and
       obligations under the Agreement of Principles (collectively, the "COM DEV
       Exchange Assets").

           (iii) If  Kingston  is an  Exchanging  Partner,  Kingston  agrees  to
       transfer to Newco at the Closing its 4.17% LP Interest; all of its rights
       and  obligations  under the Partnership  Agreement,  including all of its
       rights to receive distributions and allocations thereunder, and all other
       rights  it  may  have  as a  limited  partner  of  Orion  Atlantic  under
       applicable  law;  all  of  its  rights  and  obligations  under  the  PPU
       Agreement,  including  all of its rights to receive  repayment of amounts
       advanced  thereunder and interest  accrued on such  advances,  other than
       interest  paid to Kingston  under Section  3.2(d);  all of its rights and
       obligations  under the  Preferred  Bidders  Agreement;  all of its rights
       under the  Option  Agreement;  all of its rights  under the  Subscription
       Agreement;  and all of its rights and obligations  under the Agreement of
       Principles  (collectively,  the "Kingston Exchange Assets"). The Kingston
       Sales  Representative  Agreements  shall remain in full force without any
       modifications  being  effected  by this  Agreement,  and Orion  Atlantic,
       OrionSat and Kingston  agree that even after the Closing and the transfer
       of the  Kingston  LP  Interest to Newco,  Kingston  shall  continue to be
       treated as if it were a limited partner of Orion Atlantic for purposes of
       payment  of  the   Override   Commissions   under  the   Kingston   Sales
       Representative Agreements only.

           (iv) If Lockheed  Martin is an Exchanging  Partner,  Lockheed  Martin
       agrees to transfer to Newco at the Closing its 8.33% LP Interest;  all of
       its rights and obligations under the Partnership Agreement, including all
       of its rights to receive  distributions and allocations  thereunder,  and
       all other rights it may have as a limited partner of Orion Atlantic under
       applicable  law;  all of its  rights  and  obligations  under the  Refund
       Agreement, including all of its rights to receive refunds thereunder; all
       of its rights and obligations  under the PPU Agreement,  including all of
       its  rights to  receive  repayment  of amounts  advanced  thereunder  and
       interest  accrued on such  advances;  all of its  rights and  obligations
       under the Preferred Bidders Agreement; all of its
                                       B-4
<PAGE>
       rights  under  the  Option  Agreement;   all  of  its  rights  under  the
       Subscription  Agreement;  and all of its rights and obligations under the
       Agreement of  Principles  (collectively,  the "Lockheed  Martin  Exchange
       Assets").

           (v) If MCN Sat is an Exchanging  Partner,  MCN Sat agrees to transfer
       (or  cause  to be  transferred)  to  Newco at the  Closing  its  8.33% LP
       Interest;  all  of its  rights  and  obligations  under  the  Partnership
       Agreement,  including  all of its  rights to  receive  distributions  and
       allocations  thereunder,  and all  other  rights it may have as a limited
       partner of Orion  Atlantic  under  applicable  law; all of the rights and
       obligations  of its  Affiliate,  MCN Sat Service  S.A.,  under the Refund
       Agreement,  including all of such Affiliate|Als rights to receive refunds
       thereunder;  all of its rights and  obligations  under the PPU Agreement,
       including  all of its rights to  receive  repayment  of amounts  advanced
       thereunder and interest  accrued on such advances;  all of its rights and
       obligations  under the  Preferred  Bidders  Agreement;  all of its rights
       under the  Option  Agreement;  all of its rights  under the  Subscription
       Agreement;  and all of its rights and obligations  under the Agreement of
       Principles (collectively, the "MCN Sat Exchange Assets"). (All references
       herein to rights or  obligations of MCN Sat shall include those which may
       still be retained by MMB, the transferor of MCN Sat|Als LP Interest.) The
       MCN Sat  Sales  Representative  Agreements  shall  remain  in full  force
       without any  modifications  being effected by this  Agreement,  and Orion
       Atlantic,  OrionSat and MCN Sat agree that even after the Closing and the
       transfer of the MCN Sat LP Interest to Newco,  MCN Sat shall  continue to
       be treated as if it were a limited partner of Orion Atlantic for purposes
       of  payment  of  the  Override   Commissions  under  the  MCN  Sat  Sales
       Representative Agreements only.

           (vi) If TA Sat is an  Exchanging  Partner,  TA Sat shall  transfer to
       Newco  at the  Closing  its  8.33% LP  Interest;  all of its  rights  and
       obligations under the Partnership Agreement,  including all of its rights
       to receive distributions and allocations thereunder, and all other rights
       it may have as a limited partner of Orion Atlantic under  applicable law;
       all of its rights and obligations under the Refund  Agreement,  including
       all of its rights to receive  refunds  thereunder;  all of its rights and
       obligations  under the  Preferred  Bidders  Agreement;  all of its rights
       under the  Option  Agreement;  all of its rights  under the  Subscription
       Agreement;  and all of its rights and obligations  under the Agreement of
       Principles (collectively, the "TA Sat Exchange Assets").

       (b) Transfers by Newco to the Exchanging Partners.

           (i) If BAe is an Exchanging  Partner,  Newco shall transfer to BAe at
       the Closing,  in exchange for the BAe Exchange  Assets,  43,953 shares of
       Newco Preferred Stock, plus its respective Adjustment Amount,  calculated
       as set forth in Section 3.2(c).

           (ii) If COM DEV is an Exchanging Partner, Newco shall transfer to COM
       DEV at the Closing,  in exchange for the COM DEV Exchange  Assets,  8,302
       shares of Newco Preferred Stock, plus its respective  Adjustment  Amount,
       calculated as set forth in Section 3.2(c).

           (iii) If Kingston is an Exchanging  Partner,  Newco shall transfer to
       Kingston at the Closing,  in exchange for the Kingston  Exchange  Assets,
       10,222 shares of Newco Preferred  Stock,  plus its respective  Adjustment
       Amount, calculated as set forth in Section 3.2(c) and PPU Interest Shares
       calculated as set forth in Section 3.2(d).

           (iv)  If  Lockheed  Martin  is an  Exchanging  Partner,  Newco  shall
       transfer to Lockheed Martin at the Closing,  in exchange for the Lockheed
       Martin Exchange Assets,  17,143 shares of Newco Preferred Stock, plus its
       respective Adjustment Amount, calculated as set forth in Section 3.2(c).

           (v) If MCN Sat is an Exchanging Partner,  Newco shall transfer to MCN
       Sat at the Closing,  in exchange for the MCN Sat Exchange Assets,  15,746
       shares of Newco Preferred Stock, plus its respective  Adjustment  Amount,
       calculated as set forth in Section 3.2(c).

           (vi) If TA Sat is an Exchanging  Partner,  Newco shall transfer to TA
       Sat at the Closing,  in exchange for the TA Sat Exchange  Assets,  12,426
       shares of Newco Preferred Stock, plus its respective  Adjustment  Amount,
       calculated as set forth in Section 3.2(c).
                                       B-5
<PAGE>
   The  number of shares of Newco  Preferred  Stock  specified  in this  Section
3.2(b),  in  Sections  3.2(c) and 3.2(d)  shall be adjusted  proportionately  to
reflect  any  subdivision,   stock  split,  stock  dividend,   recapitalization,
combination  or reverse stock split of ONS capital stock or similar  transaction
by ONS between the date hereof and the Closing Date.

       (c) Adjustment Amounts.

   The numbers of shares of Newco Preferred Stock to be issued to the respective
Exchanging  Partners  as listed in  Section  3.2(b)  shall be  increased  by the
Adjustment  Amount for such Exchanging  Partner,  calculated as set forth below.
The "Adjustment Amount" for an Exchanging Partner shall equal (i) the sum of (A)
the amounts paid by such Exchanging  Partner for obligations (or an Affiliate of
such Exchanging  Partner) pursuant to the Capacity  Agreement (as defined below)
and which is subject to being refunded under the Refund  Agreement,  and by such
Exchanging  Partner  pursuant to the Contingent  Capacity  Agreement (as defined
below),  in each case to which such Exchanging  Partner (or an Affiliate of such
Exchanging  Partner) is a party, during the period from July 1, 1996 through the
Closing Date (the "Adjustment Period"),  plus (B) the amount of interest accrued
with respect to funds  advanced by such  Exchanging  Partner (or an Affiliate of
such  Exchanging  Partner)  other than  Kingston  (or an  Affiliate of Kingston)
pursuant  to the PPU  Agreement  during the  Adjustment  Period,  minus (ii) the
product of the number of days in the  Adjustment  Period  multiplied  by the Tax
Adjustment Factor for such Exchanging  Partner,  divided by (iii) $1,000. To the
extent that amounts are due or payable from an  Exchanging  Partner or Affiliate
under its  Capacity  Agreement  or  Contingent  Capacity  Agreement  during  the
Adjustment  Period,  but are not actually paid prior to the Closing  Date,  such
amounts shall not be included in clause (i)(A) of this paragraph.  Similarly, to
the extent that amounts are paid by an Exchanging Partner or Affiliate under its
Capacity Agreement or Contingent Capacity Agreement during the Adjustment Period
for  obligations  of such  Exchanging  Partner  arising after the Closing,  such
amount shall be refunded to the  Exchanging  Partner at the Closing.  Nothing in
this paragraph  shall affect the  obligations of any Exchanging  Partner to make
any payment under its Capacity Agreement or Contingent Capacity Agreement during
the Adjustment  Period or otherwise,  or affect the amount of interest  accruing
under the PPU Agreement.

       (d) Kingston Investment in PPU Interest Shares.

   Notwithstanding the exchange of Kingston Exchange Assets pursuant to Sections
3.2(a)(iii) and 3.2(b)(iii), at the Closing Orion Atlantic shall pay to Kingston
in cash the total interest  accrued until Closing with respect to funds advanced
by Kingston  pursuant to the PPU Agreement (the "Total  Accrued PPU  Interest").
Kingston  shall at the Closing  invest an amount equal to the Total  Accrued PPU
Interest in shares of Newco Preferred Stock (the "PPU Interest  Shares").  Since
the amount to be paid to Kingston under this paragraph is the same as the amount
to be invested  by  Kingston,  Orion  Atlantic  shall pay the Total  Accrued PPU
Interest  directly to Newco at the Closing.  The total number of shares of Newco
Preferred Stock to be issued to Kingston for its investment under this paragraph
shall equal (i) the Total  Accrued PPU  Interest,  minus (ii) the product of the
number of days in the Adjustment  Period multiplied by the Tax Adjustment Factor
for such Exchanging  Partner (to the extent Tax Adjustment  Factor was not fully
applied in (c) above), divided by (iii) $1,000.

 3.3 ALLOCATION OF NEWCO PREFERRED STOCK

   The Newco  Preferred  Stock to be issued to each  Exchanging  Partner  at the
Closing shall be allocated among such Exchanging  Partner|Als Exchange Assets as
follows:  first,  to the rights  under the PPU  Agreement,  including  rights to
receive  repayment of amounts  advanced  thereunder and interest accrued on such
advances, and the rights under the Refund Agreement, including rights to receive
refunds  thereunder,  until such Exchanging Partner has received Newco Preferred
Stock  with a fair  market  value  equal to such  rights;  and  second,  to such
Exchanging Partner|Als LP Interest and other Exchange Assets.

4. MERGER

 4.1 FORMATION OF SUBSIDIARY OF NEWCO

   Newco shall form a new Delaware corporation to be named Orion Merger Company,
Inc. ("Merger Sub"), and Newco shall be the sole stockholder of Merger Sub.
                                       B-6
<PAGE>
 4.2 TERMS OF MERGER

   On the basis of the representations, warranties and agreements contained in a
merger agreement, and subject to the terms and conditions hereof, at the Closing
Merger Sub shall be merged into ONS pursuant to the Delaware General Corporation
Law in a merger  in which  ONS  shall be the  surviving  company  and all of the
assets,  rights,  property,  liabilities  and  obligations of Merger Sub and ONS
shall be vested in ONS as the surviving company (the "Merger").  Pursuant to the
Merger,  holders  of  all  of  the  capital  stock  of  ONS  shall  receive,  as
consideration  for their capital stock of ONS, an identical  number of shares of
substantially identical capital stock (common or preferred, as applicable,  with
the same relative rights and preferences) of Newco.

 4.3 TRANSFER OF CERTAIN CONTRACTS

   In  connection  with the Merger,  all contracts  and  agreements  relating to
capital stock of ONS in effect at the Closing  shall be replaced with  contracts
and agreements substantially equivalent in all material respects relating to the
capital stock of Newco, including without limitation,  all options, warrants and
other  rights  to  purchase   capital  stock  and  all  contracts   relating  to
registration rights, voting of shares, transfer of shares and similar matters.

 4.4 MERGER DOCUMENTS

   ONS shall cause all necessary  documents  (the "Merger  Documents") to effect
the  Merger  and other  matters  referred  to in  Section 4 to be  prepared  and
circulated to the  Exchanging  Partners for review and comment.  The  Exchanging
Partners agree to submit any comments on the Merger Documents within 10 Business
Days after  receipt of the  initial  drafts of such  documents  and within  five
Business Days after receipt of subsequent  drafts.  ONS shall cause final drafts
of the  Merger  Documents  to be  prepared  and  circulated  to  the  Exchanging
Partners.  The  Exchanging  Partners  shall have a period of five  Business Days
after  receipt of such final drafts to raise any  objections  to the contents of
such  documents,  and the parties  shall  negotiate in good faith to resolve any
such objections. The resolution of any such objections shall be reflected in the
Merger Documents, and such documents shall be put in final form for execution at
the Closing.

5. ADDITIONAL UNDERTAKINGS AND COVENANTS

   ONS and OrionSat,  jointly and severally on the one hand,  and the Exchanging
Partners, severally and not jointly on the other hand, hereby covenant and agree
with each other as follows:

 5.1 CONSENTS AND APPROVALS

   ONS and OrionSat shall take all measures reasonably necessary or advisable to
secure such consents,  authorizations and approvals of governmental  authorities
and of private persons or entities with respect to the transactions contemplated
by this  Agreement,  and to the  performance  of all other  obligations  of such
parties hereunder, as may be required by any applicable statute or regulation of
the  United  States  or any  country,  state  or  other  jurisdiction  or by any
agreement of any kind whatsoever to which any of them is a party or by which any
of them is bound  and  which  are set  forth on  Schedule  7.3.  Notwithstanding
Sections 6.4 and 7.3, subsequent to the execution of this Agreement and prior to
the Closing  Date,  ONS,  OrionSat and the  Exchanging  Partners  shall take all
measures   reasonably   necessary  or   advisable   to  secure  such   consents,
authorizations and approvals of governmental  authorities and of private persons
or entities with respect to the transactions contemplated by this Agreement, and
to the performance of all other obligations of such parties hereunder, as may be
required by any  applicable  statute or  regulation  of the United States or any
country,  state or other jurisdiction or by any agreement of any kind whatsoever
to which any of them is a party or by which any of them is bound.  ONS, OrionSat
and the  Exchanging  Partners  shall (a)  cooperate  in the filing of all forms,
notifications,  reports and information,  if any,  required or reasonably deemed
advisable pursuant to applicable statutes,  rules,  regulations or orders of any
governmental or supragovernmental  authority in connection with the transactions
contemplated  by this Agreement and (b) use their  respective good faith efforts
to cause any
                                       B-7
<PAGE>
applicable  waiting  periods  thereunder  to expire  and any  objections  to the
transactions contemplated hereby to be withdrawn before the Closing.

 5.2 APPROVAL BY STOCKHOLDERS OF ONS

   In addition to the consents and  approvals  referred to in Section 5.1 above,
ONS shall take all  measures  reasonably  necessary  or  advisable to secure all
required  consents of the  stockholders of ONS (including the consent of holders
of  ONS|Al  preferred  stock)  to the  Merger,  the  Exchange  and  any  related
transactions  requiring  stockholder  consent  (collectively,  with any required
consent of ONS|Al preferred  stockholders,  the "ONS Stockholder Consent").  The
parties  acknowledge  that in order to obtain the ONS Stockholder  Consent,  ONS
will need to file a merger proxy statement with the United States Securities and
Exchange  Commission  ("SEC"),  revise the merger proxy statement in response to
comments  from the SEC,  obtain  approval of the SEC of the final version of the
merger proxy statement before it is mailed to ONS  stockholders,  call a meeting
of  stockholders  of ONS for  approximately  30 days  after  such  merger  proxy
statement is mailed to ONS  stockholders  and obtain the  requisite  stockholder
vote at the meeting  (such  merger proxy  statement,  including  all  amendments
thereto is referred to herein as the "Merger Proxy  Statement").  The Exchanging
Partners  shall  cooperate  with ONS in  preparing  and filing the Merger  Proxy
Statement  with the SEC and in  obtaining  SEC  clearance  of the  Merger  Proxy
Statement,  including supplying  information on each Exchanging Partner which is
reasonably  necessary  or  advisable  for ONS to  include  in the  Merger  Proxy
Statement or to be provided to any  government  agency or authority  pursuant to
applicable  statutes,  rules,  regulations  or  orders  of any  governmental  or
supragovernmental authority in connection with the Merger and other transactions
contemplated by this Agreement;  provided,  however, that none of the Exchanging
Partners   shall  be  required  to  supply  any   confidential   or  proprietary
information.  ONS shall use its good faith efforts to cause the ONS  Stockholder
Consent to be obtained  expeditiously  and any objections of ONS Stockholders to
the Merger and other transactions contemplated hereby to be withdrawn before the
Closing.

 5.3 REFINANCING OF CREDIT FACILITY; CANCELLATION OF CAPACITY AGREEMENTS

   It is presently  contemplated  that Newco,  Orion Atlantic,  ONS and OrionSat
will,  as of the Closing  Date,  complete a  refinancing  (the "Credit  Facility
Refinancing") of the indebtedness of Orion Atlantic outstanding under the Credit
Agreement (the "Credit  Facility")  dated December 6, 1991 among Orion Atlantic,
the Banks named therein (the  "Lenders") and The Chase  Manhattan Bank (National
Association),  as Agent ("Chase") using proceeds of an underwritten  offering of
notes or  debentures  of Newco to the  public (a "Bond  Offering").  The  Credit
Facility Refinancing is to effect the Capacity Agreement Termination and release
of the Capacity  Guarantees,  as discussed  (and defined)  below in this Section
5.3.  ONS shall use its good  faith  efforts to cause  Newco to  complete a Bond
Offering on reasonable  commercial  terms.  Notwithstanding  the foregoing,  the
parties acknowledge and agree that the terms of a Bond Offering are likely to be
determined in large part by the  requirements  of prospective  investors in that
Bond  Offering,  and that Newco and ONS reserve the right not to proceed  with a
Bond Offering if they determine that such Bond Offering would not be in the best
interest  of the  stockholders  of Newco or the  stockholders  of ONS (who would
become  stockholders of Newco in the Merger)  generally,  including the entities
who would be  becoming  stockholders  of Newco  pursuant to the  Exchange).  ONS
agrees to inform the Exchanging Partners periodically and in a timely fashion of
the progress of the Bond  Offering,  including  the terms being  proposed by the
underwriters  thereof, and the Exchanging Partners may advise ONS of their views
regarding  the terms of the Bond  Offering.  Newco is to use the proceeds of the
Bond Offering first for the Credit Facility Refinancing (including costs of such
transaction and the costs of terminating the interest rate protection agreements
entered  into in  connection  with the  Credit  Facility),  and if any  proceeds
remain,  then for financing of a second  satellite with coverage of the Atlantic
Ocean region and Europe ("Orion 2") or for working capital.

   In connection with the Credit Facility  Refinancing,  Newco,  Orion Atlantic,
ONS,  OrionSat and the Exchanging  Partners  shall take all measures  reasonably
necessary  or  advisable  to  cause  the   termination   (the  "Bank   Agreement
Termination"),   concurrently   with  the  completion  of  the  Credit  Facility
Refinancing,  of all agreements  between or among the Lenders and Chase,  on the
one  hand,  and one or more of  Newco,  Orion  Atlantic,  OrionSat,  ONS and the
Exchanging Partners and/or their affiliates on the other
                                       B-8
<PAGE>
hand, relating to the Credit Facility or the security or credit support thereof,
including  without  limitation,  in the case of each  Exchanging  Partner and/or
their affiliates,  a Consent and Agreement, an Assignment and Security Agreement
and a Guarantee  Agreement  (the  "Credit  Facility  Documents").  However,  the
previous sentence will not oblige the Exchanging Partners to incur any liability
in connection with the Bank Agreement Termination.

   In connection  with the Credit  Facility  Refinancing  and the Bank Agreement
Termination,  Newco, Orion Atlantic,  ONS, OrionSat and the Exchanging  Partners
shall  take  all  measures  reasonably  necessary  or  advisable  to  cause  the
termination  (the  "Capacity  Agreement  Termination"),  concurrently  with  the
completion  of  the  Credit   Facility   Refinancing   and  the  Bank  Agreement
Termination,  of all obligations  under the  Communications  Satellite  Capacity
Agreements  and the  Contingent  Communications  Satellite  Capacity  Agreements
between  Orion  Atlantic  and  each  of the  Exchanging  Partners  and/or  their
affiliates (the "Capacity  Agreements" and the "Contingent Capacity Agreements,"
respectively) arising from and after the Capacity Agreement Termination, and all
guarantees or other credit support of such obligations ("Capacity  Guarantees");
provided,  however,  that (i) the  Capacity  Agreements  of Kingston and MCN Sat
Service S.A. (but not the associated  Capacity  Guarantees) shall remain in full
force and effect,  (ii) the Kingston Capacity Agreement shall be deemed amended,
effective as of the Closing (and Kingston and Orion  Atlantic  shall execute and
deliver  such  written  documents   evidencing  such  amendment  as  either  may
reasonably  request),  to reduce to 17 MHz the amount of capacity subject to the
Kingston Capacity Agreement (of which 8 MHz shall be the capacity presently used
by Kingston  under the Kingston  Capacity  Agreement and of which 9 MHz shall be
the  capacity  presently  used  by  Kingston  under  one  of  the  BAe  Capacity
Agreements),  with an option (subject to availability) to increase the amount of
capacity  subject to the  Kingston  Capacity  Agreement  for use by  Kingston in
providing its network service  products,  but not for resale, up to a maximum of
27 MHz at the same rate and on the same terms and conditions as set forth in the
Kingston  Capacity  Agreement,  but (to the extent easily effected  technically)
without  any  obligation  to take  such  capacity  in 9 MHz  units or any  other
pre-determined  denomination,  and  (iii)  the MCN  Sat  Service  S.A.  Capacity
Agreement  shall be deemed  amended,  effective  as of the Closing  (and MCN Sat
Service S.A. and Orion Atlantic shall execute and deliver such written documents
evidencing such amendment as either may reasonably request), to reduce to 18 MHz
the amount of capacity subject thereto.

 5.4 AMENDMENT AND RESTATEMENT OF PARTNERSHIP AGREEMENT

   The  Partnership  Agreement  shall be amended and  restated as of the Closing
Date to read in its  entirety as set forth in Exhibit C (the "Third  Amended and
Restated Partnership  Agreement"),  and each of ONS, OrionSat and the Exchanging
Partners agree to execute, and deliver at the Closing, counterparts to the Third
Amended and Restated Partnership Agreement.

 5.5 REGISTRATION RIGHTS

   Concurrently  with the  Closing,  Newco and each of the  Exchanging  Partners
shall execute and deliver a Registration  Rights Agreement in the form set forth
as Exhibit D (the "Registrations Rights Agreement").

 5.6 ACCESS; INVESTIGATIONS BY THE EXCHANGING PARTNERS

   ONS shall,  through  the  Closing  Date,  provide to  representatives  of the
Exchanging  Partners  reasonable  access to the offices,  books,  agreements and
records of ONS and its Subsidiaries and Newco, and furnish to representatives of
the  Exchanging   Partners  such  financial  and  operational   data  and  other
information  with respect to the business and assets of ONS and its Subsidiaries
and Newco as the  Exchanging  Partners may  reasonably  request.  The Exchanging
Partners agree at all times through the Closing Date to use reasonable  efforts,
at least as  stringent  as those  employed  by them  with  respect  to their own
confidential information,  (a) to keep confidential all such information that is
identified as being of a confidential  nature,  (b) not to use such confidential
information  on their own behalf,  except in  connection  with the  transactions
contemplated  hereby, or on behalf of any other person,  firm or entity, and (c)
not to disclose such confidential  information to any third party (other than to
the Exchanging
                                       B-9
<PAGE>
Partners' various counsel,  accountants and other consultants in connection with
the   transactions   contemplated   hereby)   without  ONS|Al  advance   written
authorization;  provided,  however,  that the Exchanging  Partners shall have no
such obligations with respect to confidential  information that (i) was lawfully
obtained  by them not  subject to  restrictions  of  confidentiality;  (ii) is a
matter of public knowledge; or (iii) has been or is hereafter publicly disclosed
other than by or through the Exchanging Partners. In the event this Agreement is
terminated,  the Exchanging  Partners will return to ONS all documents and other
materials  furnished to any one or more of the Exchanging  Partners  relating to
the transactions  contemplated  hereunder,  whether obtained before or after the
execution of this  Agreement.  In the event of a breach or threatened  breach by
the  Exchanging  Partners  of the  provisions  of this  Section 5.6 ONS shall be
entitled to an injunction  restraining such Exchanging Partners from disclosing,
in whole or in part, such information.  The Exchanging Partners investigation of
the financial and operating data,  assets,  real property and other  information
with respect to the business  and assets of ONS and its  Subsidiaries  and Newco
shall in no way affect the  obligations  of ONS with respect to the  agreements,
representations,  warranties, covenants and indemnification provisions set forth
in this Agreement.

 5.7 WAIVER OF RIGHT OF FIRST REFUSAL UNDER THE PARTNERSHIP AGREEMENT

   Pursuant to Section 13.09(b) of the Partnership Agreement,  ONS, OrionSat and
each of the Exchanging  Partners hereby amend the Partnership  Agreement,  as of
the date hereof,  to the extent necessary to cause Section 10.04 thereof,  which
section contains the partners|Al right of first refusal with respect to the sale
of limited partnership interests of Orion Atlantic, not to apply to the Exchange
or any of the transactions referred to in this Agreement,  and hereby waives any
rights  it may have  under  Section  10.04 of the  Partnership  Agreement,  with
respect  to  the  Exchange  or  any  of the  transactions  referred  to in  this
Agreement.

 5.8 CONVERTIBLE SUBORDINATED DEBENTURES

   It is  presently  contemplated  that  Newco  will,  as of the  Closing  Date,
complete an offering  (the  "Convertible  Subordinated  Debenture  Offering") of
approximately  $100  million of  convertible  subordinated  debentures  of Newco
("Convertible Subordinated Debentures"). ONS shall use its good faith efforts to
cause  Newco  to  complete  the  Convertible  Subordinated  Debenture  Offering.
Notwithstanding the foregoing,  the parties acknowledge and agree that the terms
of a Convertible  Subordinated Debenture Offering are likely to be determined in
large  part  by  the  requirements  of  prospective   investors  in  Convertible
Subordinated Debenture Offering, and that Newco and ONS reserve the right not to
proceed with a Convertible  Subordinated  Debenture  Offering if they  determine
that such Convertible  Subordinated  Debenture Offering would not be in the best
interest  of the  stockholders  of Newco or the  stockholders  of ONS (who would
become  stockholders of Newco in the Merger)  generally,  including the entities
who would be  becoming  stockholders  of Newco  pursuant to the  Exchange).  ONS
agrees to inform the Exchanging Partners periodically and in a timely fashion of
the progress of the Convertible  Subordinated Debenture Offering,  including the
terms being proposed by the  underwriters or placement  agents thereof,  and the
Exchanging  Partners  may advise ONS of their views  regarding  the terms of the
Convertible  Subordinated  Debenture  Offering.  ONS  intends  for  Newco to use
BAe|Als $50 million expected payment for Convertible Subordinated Debentures and
an  additional  $10 million of the proceeds of the offering for the financing of
Orion 2. While not intended to be legally  binding,  BAe hereby confirms that it
intends  to  purchase  from  Newco  $50  million  of  Convertible   Subordinated
Debentures on  substantially  the same terms as the remainder of the offering of
the Convertible Subordinated Debentures.

 5.9 AGREEMENT REGARDING TRANSFER

   Concurrent  with the  Closing,  each  Exchanging  Partner  will enter into an
agreement, in the form set forth as Exhibit E hereto,  regarding the transfer of
the shares of Newco Common Stock issuable upon conversion of the Newco Preferred
Stock.

 5.10 RELEASE OF CLAIMS

   Concurrently  with the Closing,  each of the parties hereto agrees to release
and  forever  discharge  each of the  other  parties  hereto  and  each of their
Affiliates  from and after the  Closing,  from and  against  any and all rights,
causes  of  action,  claims,  suits,  obligations,   liabilities,   and  demands
whatsoever (other
                                      B-10
<PAGE>
than  those  arising  from  fraud or  misrepresentation),  in law or in  equity,
whether  presently known or unknown,  to the fullest extent  permitted by law by
reason  of,  related  to, or  arising  out of any one or more of the  agreements
referred to in Section 3.2 hereof (other than this Agreement).

 5.11 LEGEND, REMOVAL

   Each certificate or instrument  representing  Newco Preferred Stock (or Newco
Common Stock received upon the conversion thereof or as dividends thereon) shall
be  imprinted  with a legend to the  effect  that the  securities  have not been
registered  under the  Securities  Act and may not be transferred or sold except
pursuant to an effective  registration  under the  Securities Act and applicable
state  securities  laws or an available  exemption  from such  registration.  In
connection with the transfer of any Newco Preferred Stock (or Newco Common Stock
received  upon the  conversion  thereof  or as  dividends  thereon)  other  than
pursuant to an effective registration statement filed by ONS, the holder thereof
shall  deliver  written  notice to Newco  describing  in  reasonable  detail the
transfer or proposed  transfer,  together  with an opinion of counsel  which (to
Newco's  reasonable  satisfaction) is knowledgeable in securities law matters to
the  effect  that such  transfer  of such  securities  may be  effected  without
registration of such securities  under the Securities Act. Upon issuance of such
opinion (to the extent it relates to Newco  Preferred  Stock) or  acceptance  of
such  opinion  by  Newco|Als  transfer  agent (to the extent it relates to Newco
Common Stock),  Newco shall promptly upon such contemplated  transfer deliver or
caused to be delivered new  certificates  for such securities  which do not bear
the  Securities  Act legend  referred to above in this  paragraph.  If any Newco
Preferred  Stock (or Newco Common Stock received upon the conversion  thereof or
as dividends  thereon) becomes eligible for sale pursuant to Rule 144(k),  Newco
shall,  upon the  request of the holder of such  securities  (together  with the
opinion  referred  to  above  in this  paragraph,  which  shall  state  that the
provisions of Rule 144(k) have been complied  with),  remove the legend referred
to above in this paragraph from the certificates for such securities.

 5.12 TAX-FREE STATUS

   No  party  hereto  shall,  nor  shall  any  party  hereto  permit  any of its
affiliates to, take any action, or omit to take any required action, that would,
or would be reasonably  likely to,  adversely  affect the  qualification  of the
Merger and the Exchange,  taken together, as a tax-free transaction described in
Code Section 351(a).  Each party hereto shall,  for all tax purposes,  treat the
Merger and the Exchange,  taken together, as a tax-free transaction described in
Code Section 351(a).

6. REPRESENTATIONS AND WARRANTIES OF EXCHANGING PARTNERS

   Each of the Exchanging  Partners hereby severally  represents and warrants to
ONS as follows (provided that the  representations and warranties in Section 6.8
are made solely by Lockheed Martin):

 6.1 TITLE TO LP INTERESTS; OTHER LP RIGHTS

   Such Exchanging Partner is, and on the Closing Date will be, the lawful owner
of the LP Interest of such Exchanging  Partner,  and such Exchanging Partner (or
such  Exchanging  Partner|Als  Affiliate,  as the case  may  be),  is and on the
Closing  Date will be,  the  lawful  owner of such  Exchanging  Partner|Als  (or
Affiliate|Als)  Other LP Rights,  as listed in Section 3.2.  Except as set forth
below,  such  Exchanging  Partner has,  and on the Closing Date such  Exchanging
Partner  will have,  good,  valid and  marketable  title,  free and clear of all
Encumbrances, to the LP Interest of such Exchanging Partner, and such Exchanging
Partner (or such Exchanging Partner|Als Affiliate, as the case may be), has, and
on the Closing Date will have, good, valid and marketable  title, free and clear
of all Encumbrances,  to such Exchanging Partner|Als (or Affiliate|Als) Other LP
Rights,  as listed in  Section  3.2,  in each  case with full  right and  lawful
authority to transfer  the LP Interest and Other LP Rights to Newco  pursuant to
this Agreement.  Notwithstanding the foregoing, the parties acknowledge that the
LP Interests and certain of the Other LP Rights are pledged to the Lenders under
the Credit  Facility  Documentation,  and that the LP  Interests  are pledged to
Orion Atlantic under the respective Contingent Capacity Agreements.
                                      B-11
<PAGE>
 6.2 ORGANIZATION AND STANDING; CAPACITY

   Such Exchanging Partner is a corporation duly organized, validly existing and
in good standing under the laws of its respective jurisdiction, and has the full
corporate  power and authority to carry on its business as currently  conducted.
Each  Exchanging  Partner has full legal right,  capacity,  power and  authority
(corporate or otherwise) to execute and deliver this Agreement and to consummate
the transactions contemplated hereby.

 6.3 AUTHORIZATION

   The execution,  delivery and  performance  by the Exchanging  Partner of this
Agreement and all other documents  contemplated  hereby,  the fulfillment of and
the compliance with the respective terms and provisions hereof and thereof,  and
the consummation of the transactions  contemplated  hereby and thereby have been
duly  authorized  by the Board of Directors of such  Exchanging  Partner  (which
authorization  has not been  modified  or  rescinded  and is in full  force  and
effect),  and will not: (a) conflict  with, or materially  violate any provision
of,  any law  having  applicability  to such  Exchanging  Partner  or any of its
Affiliates  which is a party to any agreement with or relating to Orion Atlantic
or any term or provision of the articles of incorporation  or  organization,  or
bylaws  or  operating  agreement  of  such  Exchanging  Partner  or any of  such
Affiliates,  as  applicable;  or (b)  conflict  with,  or result in any material
breach of, or constitute a material  default under,  any agreement to which such
Exchanging  Partner  or any of such  Affiliates  is a  party  or by  which  such
Exchanging Partner or any of such Affiliates may be bound.

 6.4 RESTRICTIONS AND CONSENTS

   Except for certain approvals which may be required by the Japanese government
if TA Sat becomes an Exchanging Partner, there are no agreements,  laws or other
restrictions  of any kind to which such  Exchanging  Partner is party or subject
that would prevent or restrict the  execution,  delivery or  performance of this
Agreement.

 6.5 BINDING OBLIGATION

   This Agreement  constitutes a valid and binding obligation of such Exchanging
Partner,  enforceable in accordance with its terms. Each document to be executed
by such  Exchanging  Partner  pursuant  hereto,  when  executed and delivered in
accordance with the provisions hereof, will be a valid and binding obligation of
such Exchanging Partner, enforceable in accordance with its terms.

 6.6 TRANSFER OF TITLE

   At the Closing,  Newco will acquire good,  valid and marketable title to such
Exchanging  Partner|Als  LP Interest and such  Exchanging  Partner|Als  Other LP
Rights,  free and clear of all  Encumbrances,  other than  those  imposed by the
terms of the  Partnership  Agreement  and  restrictions  on resale  contained in
federal and state securities laws.

 6.7 ACCREDITED INVESTORS

   Each Exchanging Partner and any Affiliate of such Exchanging Partner who will
be receiving Newco  Preferred Stock is an "accredited  investor" as such term is
defined in Rule 501 of the Securities Act.

 6.8 NAME CHANGE OF LOCKHEED MARTIN

   Lockheed  Martin only hereby  represents  and  warrants  that it was formerly
named Martin Marietta  Commercial  Launch  Services,  Inc., that it is a limited
partner of Orion Atlantic and a party to the  agreements  referred to in Section
3.2(a)(iv)  and that it has  provided  evidence  of its name change to the other
parties hereto.

7. REPRESENTATIONS AND WARRANTIES OF ONS

   ONS hereby represents and warrants to the Exchanging Partners as follows:
                                      B-12
<PAGE>
 7.1 ORGANIZATION AND STANDING

   ONS is a corporation  duly organized,  validly  existing and in good standing
under the laws of the State of Delaware,  and has the full  corporate  power and
authority  to carry on its  business as  currently  conducted.  ONS has the full
legal right,  capacity,  power and authority (corporate or otherwise) to execute
and deliver  this  Agreement  and the other  documents  called for herein and to
consummate the transactions  contemplated  hereby. ONS is qualified as a foreign
corporation in the State of Maryland,  and in every other  jurisdiction in which
the failure to so qualify would have a Material Adverse Effect.

 7.2 AUTHORIZATION

   The  execution,  delivery and  performance  by ONS of this  Agreement and the
other documents  contemplated hereby, the fulfillment of and the compliance with
the respective terms and provisions hereof and thereof,  and the consummation of
the  transactions  contemplated  hereby and thereby have been duly authorized by
the Board of  Directors  of ONS (which  authorization  has not been  modified or
rescinded and is in full force and effect),  and will not: (a) conflict with, or
materially violate any provision of, any law having  applicability to ONS or any
of its Affiliates or any term or provision of the articles of  incorporation  or
organization,  or bylaws or operating  agreement of ONS, as  applicable;  or (b)
conflict  with,  or result in any material  breach of, or  constitute a material
default under, any agreement to which ONS or any of its Affiliates is a party or
by which ONS or any of its Affiliates may be bound.

 7.3 RESTRICTIONS AND CONSENTS

   Except for certain  approvals  which are set forth on Schedule 7.3, which ONS
will use its  reasonable  efforts  to  obtain  prior to  Closing,  there  are no
agreements,  laws or other  restrictions  of any  kind to which  ONS is party or
subject that would prevent or restrict the execution, delivery or performance of
this Agreement. ONS has no reason to believe, as of the date hereof, that any of
the conclusions  reached in the memorandum from ONS|Als  communications  counsel
previously  circulated to the Exchanging Partners and attached hereto as Exhibit
K indicating  that the Exchange  will not  constitute a change of control of ONS
that would  require the consent of the U.S.  Federal  Communications  Commission
("FCC"),  or otherwise require the consent of that Commission,  are incorrect in
any material  respect and will promptly  notify each  Exchanging  Partner if ONS
becomes aware of any reason why any such conclusions may become  incorrect.  If,
notwithstanding such memorandum,  such FCC consent is required, ONS will use its
reasonable good faith efforts to obtain such consent prior to Closing.

 7.4 BINDING OBLIGATION

   This  Agreement  constitutes,  and the  Registration  Rights  Agreement  when
executed will constitute, valid and binding obligations of ONS and Newco, as the
case may be,  enforceable  in  accordance  with its terms.  Each  document to be
executed  by ONS or Newco  pursuant  hereto,  when  executed  and  delivered  in
accordance with the provisions hereof, will be a valid and binding obligation of
ONS or Newco, enforceable in accordance with its terms.

 7.5 ISSUANCE OF SHARES

   Upon  consummation  of the  transactions  contemplated  by this  Agreement at
Closing,  the Newco Preferred Stock will be duly and validly issued,  fully paid
and nonassessable and no personal  liability  attaches to the ownership thereof,
and the Exchanging  Partners will acquire the legal,  valid and marketable title
to the Newco Preferred Stock, free and clear of all Encumbrances,  except as set
forth in this Agreement.

 7.6 CAPITALIZATION

   As of the date  hereof,  the  authorized  capital  stock of ONS  consists  of
40,000,000  shares of ONS Common Stock and 1,000,000  shares of preferred stock,
par value $.01 per share, of which 10,945,133 shares of ONS Common Stock, 13,961
shares of ONS  Series A  Preferred  Stock and  4,211,001  shares of ONS Series B
Preferred  Stock are duly authorized and validly issued and  outstanding,  fully
paid and
                                      B-13
<PAGE>
nonassessable.  ONS has no  other  class  of stock  authorized  or  outstanding.
Options  and  warrants  to  purchase  1,396,851  shares of ONS Common  Stock are
outstanding  on the date  hereof,  and when such options are  exercised  and the
prescribed  exercise  price  paid,  the shares of ONS Common  Stock  issued with
respect to such options will be duly authorized,  validly issued, fully paid and
nonassessable.  Options to purchase  350.666  shares of ONS preferred  stock are
outstanding  on the date  hereof,  the  terms of which  are to be  substantially
identical  to the ONS Series A  Preferred  Stock and the ONS Series B  Preferred
Stock other than the  conversion  price.  Except as set forth  above,  or in the
certificates  of designations of the ONS Series A Preferred Stock and ONS Series
B Preferred Stock, as of the date hereof there are no existing options, warrants
or rights to purchase or otherwise  acquire from ONS capital stock of ONS of any
class,  no  outstanding  securities of ONS that are  convertible  into shares of
capital  stock of ONS of any  class,  and no  options,  warrants  or  rights  to
purchase from ONS any such  convertible  securities,  and ONS has no outstanding
contractual or other obligation to repurchase,  redeem or otherwise  acquire any
outstanding shares of its capital stock. Upon the issuance of Newco Common Stock
upon  the  conversion  of the  Newco  Preferred  Stock  in  accordance  with the
Certificate  of  Designations,  such Newco Common Stock will be duly and validly
issued,  fully paid and  non-assessable and no personal liability will attach to
the ownership  thereof.  As of the Closing Date, Newco will have reserved out of
its authorized but unissued shares of Newco Common Stock,  solely for issue upon
such  conversion,  the number of shares  necessary for such  purpose.  As of the
Closing Date,  Newco will have sufficient  authorized  capital stock  (including
Newco  Preferred  Stock)  to meet its  obligations  hereunder.  The  issued  and
outstanding  shares of ONS capital stock have not been, and the Newco  Preferred
Stock to be issued to the Exchanging  Partners hereunder (and Newco Common Stock
issuable  upon the  conversion  thereof) will not be, issued in violation of any
preemptive or other rights of any person,  whether arising by statute, under the
Certificate of Incorporation or By-Laws of Newco or in any other manner.

 7.7 NO LIABILITIES

   Except as set forth in the consolidated  audited financial  statements of ONS
as of December  31, 1995,  and for the period  ended on such date (the  "Current
Financial Statements"),  or included in the Disclosure Materials, there exist no
material  liabilities  (whether  contingent  or absolute,  matured or unmatured,
known or unknown) of ONS or any  Subsidiary.  Immediately  prior to the Closing,
Newco will have no liabilities  (other than de minimis  liabilities  relating to
Newco|Als  formation,  any  liabilities or obligations  relating to transactions
contemplated by this Agreement, and any liabilities for expenses relating to the
Credit Facility Refinancing, Bond Offering, Bank Agreement Termination, Capacity
Agreement Termination and Convertible Subordinated Debenture Offering).

 7.8 TAXES

   ONS and each  Subsidiary has filed or has caused to be filed (or has obtained
extensions  with respect to) all material  federal,  state and local tax returns
which are  required  to be filed and has paid in full or  accrued  all  material
federal,  state  and  local  taxes,   estimated  taxes,   interest,   penalties,
assessments and deficiencies  assessed in connection with such returns.  Neither
ONS nor any Subsidiary is a party to any pending  action or  proceeding,  and to
the  knowledge  of ONS  there is no  action  or  proceeding  threatened,  by any
governmental  authority for assessment or collection of taxes, and no unresolved
claim for assessment or collection of taxes has been asserted against ONS or any
Subsidiary, which would have a Material Adverse Effect.

 7.9 SUBSIDIARIES

   Schedule  7.9  hereto  sets  forth  the name of each  Subsidiary  and  ONS|Al
ownership in such entity. Each Subsidiary is a corporation, or partnership, duly
organized,  validly existing and in good standing under the laws of its state of
incorporation  or  organization,  and  each  has the full  corporate  power  and
authority to carry on its business as it is now being conducted. Each Subsidiary
is qualified in every jurisdiction in which the failure to so qualify would have
a Material Adverse Effect.
                                      B-14
<PAGE>
 7.10 BOOKS AND RECORDS

   The books of account, stock record, minute books and other records of ONS and
its  Subsidiaries   have  been  maintained  in  accordance  with  good  business
practices,  and the matters  contained  therein are appropriately and accurately
reflected in the Current Financial Statements.

 7.11 LITIGATION

   Except as set forth in the  Disclosure  Materials and Schedule 7.11 regarding
the Skydata matter, there are no material claims, actions, suits, proceedings or
investigations  pending or, to the knowledge of ONS,  threatened or  anticipated
against,  affecting  or  involving  ONS or any  Subsidiary  or the  transactions
contemplated  by this  Agreement,  at law or in  equity,  or before  any  court,
arbitrator or governmental authority,  domestic or foreign.  Neither ONS nor any
Subsidiary  is  operating  under,  subject to or in default  with respect to any
order, judgment,  injunction or decree of any court,  arbitrator or governmental
authority, domestic or foreign that would have a Material Adverse Effect, except
for orders of the Federal Communications  Commission pertaining to the authority
of ONS to conduct its operations, and with respect to such orders ONS is in full
compliance.

 7.12 SEC FILINGS

   Since  August  1,  1995,  all  reports,  proxy  statements  and  registration
statements  required to be filed by ONS with the SEC pursuant to the  Securities
Act, and the  Securities  and Exchange Act of 1934, as amended (the "1934 Act"),
have been timely filed with the SEC and complied in all material  respects  with
the  requirements  of the  Securities  Act,  the  1934  Act  and the  rules  and
regulations  under the  Securities  Act and 1934 Act, and none of such  reports,
proxy  statements or registration  statements  contained as of their  respective
dates any untrue  statement  of a  material  fact or omitted to state a material
fact required to be stated  therein or necessary in order to make the statements
therein,  in  light  of the  circumstances  under  which  they  were  made,  not
misleading.  In addition,  the Merger Proxy  Statement  insofar as it relates to
ONS,  as of the date of  mailing  of the Merger  Proxy  Statement  by ONS to its
stockholders  and as of the date of the ONS  stockholders  meeting to which such
Merger Proxy Statement  relates,  (i) will comply in all material  respects with
the provisions of the 1934 Act and the rules and regulations thereunder and (ii)
except  with  respect to any  information  relating to the  Exchanging  Partners
provided to ONS by the Exchanging  Partners in writing  specifically  for use in
the Merger Proxy  Statement,  will not contain an untrue statement of a material
fact or omit to state a material fact required to be stated therein or necessary
to make the statements  therein,  in light of the circumstances under which they
were made, not misleading.

 7.13 TRANSACTIONS WITH EXCHANGING PARTNERS

   Neither ONS nor any of its Affiliates currently is a party to any transaction
or agreement with any of the Exchanging Partners or their Affiliates relating to
the Exchange,  other than this Agreement and the agreements contemplated hereby,
that has not been  disclosed  to each of the  Exchanging  Partners or  otherwise
publicly disclosed by ONS.

 7.14 ABSENCE OF VIOLATIONS

   Neither  ONS nor any of its  Subsidiaries  is in  default  under,  nor has it
breached,  any  material  term  or  material  provision  of its  Certificate  of
Incorporation or By-laws or any Material Contract. ONS and its Subsidiaries have
complied with and are in full compliance with all Laws,  where the failure to so
comply would have a Material Adverse Effect.

8. RESTRICTED SECURITIES

   Each Exchanging Partner hereby severally  represents,  warrants and covenants
to ONS as follows:

 8.1 NO REGISTRATION UNDER THE SECURITIES ACT

   Such  Exchanging  Partner  understands  that the Newco  Preferred Stock to be
acquired by it under this  Agreement,  and the Newco Common Stock  issuable upon
the conversion  thereof,  have not been registered  under the Securities Act, in
reliance upon exemptions contained in the Securities Act or
                                      B-15
<PAGE>
interpretations  thereof,  and cannot be  offered  for sale,  sold or  otherwise
transferred  unless  subsequently  so registered  or qualify for exemption  from
registration  under the Securities Act. The Newco Preferred Stock, and the Newco
Common Stock issuable upon the conversion thereof, will not be offered for sale,
sold  or  otherwise  transferred  by  such  Exchanging  Partner  without  either
registration or exemption from registration under the Securities Act.

 8.2 ACQUISITION FOR INVESTMENT

   The Newco  Preferred  Stock  being  acquired  under  this  Agreement  by such
Exchanging  Partner is being  acquired in good faith solely for such  Exchanging
Partner|Als own account,  for investment and not with a view toward distribution
within the meaning of the Securities  Act. Such  Exchanging  Partner has, and at
the time of  Closing  such  Exchanging  Partner  will have,  no present  plan or
intention  to sell or  otherwise  dispose  of the Newco  Preferred  Stock  being
acquired  under this  Agreement  or any Newco  Common  Stock  issuable  upon the
conversion  of  such  Newco  Preferred  Stock;  provided,   however,  that  such
Exchanging  Partner may decide,  from time to time,  to sell some or all of such
stock based upon a change in the investment  policy of such  Exchanging  Partner
and  provided  further,  that this  provision  shall not  restrict  MCN Sat from
transferring a portion of its Newco Preferred Stock to BAe.

 8.3 EVALUATION OF MERITS AND RISKS OF INVESTMENT

   Such  Exchanging  Partner has such  knowledge and experience in financial and
business  matters  that such  Exchanging  Partner is capable of  evaluating  the
merits and risks of its investment in the Newco  Preferred  Stock being acquired
hereunder.  Such Exchanging Partner understands and is able to bear any economic
risks  associated  with such  investment  (including,  without  limitation,  the
necessity of holding the Newco Preferred Stock for an indefinite period of time,
inasmuch  as the  Newco  Preferred  Stock  have not been  registered  under  the
Securities Act).

 8.4 REVIEW OF DOCUMENTS

   Such Exchanging Partner and its advisers, if any, have received, and have had
a reasonable opportunity to review, the following documents  (collectively,  the
"Disclosure  Materials"):  (i) Annual Report on Form 10-K for ONS for the fiscal
year ended December 31, 1995; (ii) Quarterly Report on Form 10-Q for ONS for the
fiscal  quarter ended March 31, 1996;  (iii) Proxy  Statement of ONS relating to
the Annual  Meeting of  Stockholders  to be held on May 23, 1996;  and (iv) Risk
Factors Relating to Orion and Description of Capital Stock of Orion.

 8.5 OPPORTUNITY TO REQUEST INFORMATION

   Such  Exchanging  Partner and its  advisers,  if any,  have had a  reasonable
opportunity  to ask  questions  of and receive  information  and answers  from a
person  or  persons  acting  on  behalf  of  ONS  concerning  the   transactions
contemplated by this Agreement and all such questions have been answered and all
such information has been provided to their full satisfaction. If this Agreement
is not  terminated on or before the Newco  Finalization  Date,  such  Exchanging
Partner and its advisers,  if any, as of the Newco  Finalization Date, will have
had a reasonable  opportunity  to ask questions of and receive  information  and
answers  from a person or  persons  acting on  behalf  of Newco  concerning  the
transactions  contemplated  by this  Agreement and all such  questions will have
been  answered and all such  information  will have been  provided to their full
satisfaction.  In making  their  investment,  the  Exchanging  Partners  will be
relying  solely on their  review of the  Disclosure  Materials  (other  than any
projections   included   therein,   which  are  not  being  relied  upon),   the
representations  and warranties set forth herein, the Newco Formation  Documents
and the Merger  Documents,  and the documents  made available for inspection and
the answers to questions referred to in this Section 8.5.

9. CONDITIONS PRECEDENT TO OBLIGATIONS OF THE EXCHANGING PARTNERS

   The obligations of each of the Exchanging  Partners (and of Lockheed  Martin,
in the case of the condition in Section 9.8) under this Agreement are subject to
the fulfillment, at or prior to the Closing, of each of the following conditions
(other than those in Section 9.8, which are a condition only to the
                                      B-16
<PAGE>
obligations of Lockheed Martin), and failure to satisfy any such condition shall
excuse and discharge all obligations of each of the Exchanging  Partners (and of
Lockheed Martin only, in the case of failure of the condition in Section 9.8) to
carry out the provisions of this Agreement,  unless such failure is agreed to in
writing by each of the Exchanging  Partners (and of Lockheed Martin only, in the
case of the condition in Section 9.8):

 9.1 REPRESENTATIONS AND WARRANTIES

   The  representations  and warranties  made by ONS in this Agreement  shall be
true and  complete  in all  material  respects  when made,  and on and as of the
Closing Date as though such  representations  and warranties were made on and as
of such date.

 9.2 PERFORMANCE

   ONS and OrionSat shall have  performed and complied in all material  respects
with all agreements and covenants  required by this Agreement to be performed or
complied with by ONS and/or OrionSat prior to the Closing Date.

 9.3 DOCUMENTS AT CLOSING

   All  documents  required to be  furnished  by Newco,  ONS and OrionSat to the
Exchanging Partners prior to or at the Closing shall have been so furnished.

 9.4 REFINANCING OF CREDIT FACILITY, CANCELLATION OF CAPACITY AGREEMENTS

   The Credit Facility Refinancing and Capacity Agreement Termination shall have
been completed,  other than any actions to be taken by such Exchanging  Partner,
and  the  documents  effecting  the  Capacity  Agreement  Termination  shall  be
substantially in the form of Exhibit H hereto or otherwise in form and substance
reasonably  satisfactory to each Exchanging Partner.  Evidence of the completion
of the Capacity Agreement  Termination and Credit Facility  Refinancing shall be
the execution of Exhibit H by Chase and the  unconditional  delivery of the same
at Closing.

 9.5 CONSENTS

   ONS and OrionSat  shall have received all material  consents,  authorizations
and approvals of governmental,  supragovernmental  and private parties listed on
Schedule  7.3 which are  required  to be  obtained  in order to  consummate  the
transactions contemplated hereby.

 9.6 REGISTRATION

   The  Registration  Rights Agreement shall have been executed and delivered by
Newco.

 9.7 SATELLITE CONTRACT

   ONS or one of its affiliates shall have entered into a satellite  procurement
contract  (the  "Orion 2 Satellite  Contract")  with Matra  Marconi  Space or an
affiliate  thereof ("Matra Marconi  Space") for the  construction  and launch of
Orion 2, ONS or one of its  affiliates  shall have  given  Matra  Marconi  Space
notice to proceed under such contract and Amendment No. 10 between Matra Marconi
Space and Orion  Atlantic to the Second  Amended and  Restated  Contract,  dated
September 26, 1991, as amended  shall have become  effective and Orion  Atlantic
shall not be in default under such Amendment No.
10.

 9.8 LAUNCH SUB CONTRACT

   Lockheed Martin and Matra Marconi Space shall have entered into a subcontract
to the Orion 2 Satellite Contract relating to the launch of Orion 2.

 9.9 NEWCO FORMATION

   The Newco Formation  Documents shall be consistent with the requirement  that
Newco  be  substantially  identical  in all  material  respects  to ONS,  or any
discrepancies  shall  be  reasonably   acceptable  to  the  Exchanging  Partners
(provided, however, that such condition shall be deemed to have been satisfied,
                                      B-17
<PAGE>
and shall  terminate,  and be of no further force and effect,  if this Agreement
shall not have been terminated on or before the Newco  Finalization  Date);  and
the Newco Formation shall have occurred in accordance with Section 2.

 9.10 MERGER

   The Merger shall have occurred, or shall occur concurrently with the Closing,
in accordance with Section 4.

 9.11 TAX OPINION

   The  Exchanging  Partners  shall have received an opinion from Ernst & Young,
LLP, tax advisors to Newco, in form and substance reasonably satisfactory to the
Exchanging  Partners,  dated the  Closing  Date,  which  opinion may be based on
appropriate  representations  of the  parties  hereto,  in  form  and  substance
reasonably  satisfactory to such tax advisors, to the effect that the Merger and
the Exchange,  taken  together,  will be a tax-free  exchange  described in Code
Section 351(a).

10. CONDITIONS PRECEDENT TO OBLIGATIONS OF ONS AND ORIONSAT

   The  obligations  of ONS and OrionSat under this Agreement are subject to the
fulfillment,  at or prior to the Closing,  of each of the following  conditions,
and  failure to satisfy  any such  condition  shall  excuse  and  discharge  all
obligations of ONS and OrionSat to carry out the  provisions of this  Agreement,
unless such failure is agreed to in writing by ONS and OrionSat:

 10.1 REPRESENTATIONS AND WARRANTIES

   The  representations  and warranties made by the Exchanging  Partners in this
Agreement shall be true and complete in all material  respects when made, and on
and as of the Closing Date as though such  representations  and warranties  were
made on and as of such date, except for any changes expressly  permitted by this
Agreement.

 10.2 PERFORMANCE

   The  Exchanging  Partners shall have performed and complied with all material
agreements and covenants  required by this Agreement to be performed or complied
with prior to the Closing Date.

 10.3 DOCUMENTS AT CLOSING

   All documents required to be furnished by the Exchanging  Partners to ONS and
OrionSat prior to or at the Closing shall have been so furnished.

 10.4 CONSENTS

   The  Exchanging   Partners   shall  have  received  all  material   consents,
authorizations  and  approvals of  governmental,  supragovernmental  and private
parties  which  are  required  to  be  obtained  in  order  to  consummate   the
transactions contemplated hereby.

 10.5 REFINANCING OF CREDIT FACILITY, CANCELLATION OF CAPACITY AGREEMENTS

   The Credit  Facility  Refinancing,  Bank Agreement  Termination  and Capacity
Agreement  Termination  shall have been completed,  other than any actions to be
taken by ONS and OrionSat.

 10.6 PARTNERSHIP AGREEMENT AMENDMENT

   The Partnership  Agreement shall have been amended as contemplated by Section
5.4, other than due to any actions to be taken by ONS and OrionSat.
                                      B-18
<PAGE>
 10.7 CONSENTS OF THE ONS STOCKHOLDERS

   The ONS  Stockholder  Consent has been obtained for the Merger,  the Exchange
and any related transactions requiring stockholder consent.

 10.8 COMPLETION OF FINANCING FOR A SECOND SATELLITE

   Newco shall have raised at least $100  million  from the sale of  Convertible
Subordinated   Debentures,   not  including  any  amounts   representing  or  in
satisfaction  of any  amounts  due by ONS or Orion  Atlantic  to any  Exchanging
Partner or Affiliate thereof,  and BAe shall have purchased at least $50 million
of Convertible Subordinated Debentures from Newco.

 10.9 SATELLITE CONTRACT

   ONS or one of its  affiliates  shall have  entered into the Orion 2 Satellite
Contract with Matra Marconi Space for the construction and launch of Orion 2.

 10.10 NEWCO FORMATION

   The Newco Formation shall have occurred in accordance with Section 2.

 10.11 MERGER

   The  Merger  shall  have  occurred,  or be  occurring  concurrently  with the
Closing,  in  accordance  with  Section  4; and no ONS  stockholder  (or  former
stockholder  of ONS,  if the  Merger  already  shall have  occurred)  shall have
delivered  to  ONS  a  written  notice  of  such   stockholder|Als   (or  former
stockholder|Als)  intention,  or otherwise indicated an intention, to dissent to
the Merger or  otherwise  seek to  exercise  any right to sell to ONS, or obtain
payment from ONS for,  such  stockholder|Als  stock in ONS in lieu of such stock
being converted in the Merger to stock of Newco.

11.0 CLOSING

 11.1 CLOSINGS

   (a) Deposit into Escrow
Simultaneously  with  execution and delivery of this  Agreement,  the Exchanging
Partners are entering into an Escrow Agreement in the form attached as Exhibit J
and depositing into escrow with one counsel selected by the Exchanging  Partners
(which may be counsel  representing  one or more of the  Exchanging  Partners in
other  capacities),  acting  as  escrow  agent,  executed  copies of each of the
documents to be delivered by the Exchanging  Partners to Newco,  ONS or OrionSat
at the Closing.  Each of the parties hereto agrees to abide by the terms of such
Escrow Agreement.

   (b) Closing
Subject to the terms and  conditions of this  Agreement,  the Closing shall take
place at the offices of Hogan & Hartson  L.L.P.,  555 Thirteenth  Street,  N.W.,
Washington, D.C. 20004 on the Closing Date.

 11.2 DELIVERIES BY THE EXCHANGING PARTNERS

   At or prior to the Closing,  the Exchanging  Partners shall deliver to Newco,
ONS or OrionSat, as applicable, the following:

       (a) documents of transfer of partnership  interests and  substitution  of
   limited partners with respect to the LP Interests being  transferred to Newco
   pursuant to Section 2, in the form attached as Exhibit F;

       (b) documents transferring the rights included in the Other LP Rights, in
   the form attached as Exhibit G.
                                      B-19
<PAGE>
       (c) counterparts to the Third Amended and Restated Partnership  Agreement
   duly executed by each of the Exchanging Partners;

       (d) a certified copy of the resolutions adopted by the Board of Directors
   of each of the Exchanging Partners authorizing the transactions  contemplated
   by this Agreement; and

       (e) such  other  documents  as  Newco,  ONS or  OrionSat  may  reasonably
   request,  including  without  limitation  certificates of the officers of the
   Exchanging Partners as to the matters set forth in Sections 10.1 and 10.2.

 11.3 DELIVERIES BY ONS AND NEWCO

   At or prior to the Closing,  Newco,  ONS or OrionSat,  as  applicable,  shall
deliver to the Exchanging Partners the following:

       (a)  certificates  representing the Newco Preferred Stock being issued to
   the Exchanging Partners pursuant to Section 2;

       (b) the Registration Rights Agreement, duly executed by Newco;

       (c) evidence in the form of the  documents  included as Exhibit H hereto,
   duly  executed and  delivered by all parties  thereto  other than  Exchanging
   Partners,  that the Capacity Termination Agreement has been effected and that
   the Capacity Guarantees have been terminated in their entirety;

       (d) a  certified  copy  of  the  resolutions  adopted  by the  Boards  of
   Directors  of  Newco,   ONS  and  OrionSat   authorizing   the   transactions
   contemplated by this Agreement;

       (e) evidence of receipt of the ONS Stockholder Consent;

       (f) good  standing  certificates  as of a date not more than fifteen days
   prior to the Closing  Date issued by the  Secretary  of State of the State of
   Delaware with respect to Newco, ONS and OrionSat;

       (g)  opinion(s)  of counsel to Newco and ONS,  dated the Closing Date and
   addressed to the Exchanging  Partners,  substantially to the effect set forth
   on Exhibit I;

       (h) an  agreement  by Newco to be bound by the  indemnity  provisions  of
   Section 12 (the "Newco Indemnity"); and

       (i) such  other  documents  as the  Exchanging  Partners  may  reasonably
   request,  including without limitation  certificates of the officers of Newco
   and ONS as to the matters set forth in Sections 9.1 and 9.2.

 11.4 ORDER OF EFFECTIVENESS

   Of the documents being  delivered by the Exchanging  Partners at the Closing,
the  counterparts to the Third Amended and Restated  Partnership  Agreement duly
executed by each of the Exchanging Partners shall be deemed delivered first, and
upon  signature by ONS and OrionSat the Third  Amended and Restated  Partnership
Agreement shall be deemed in full force and effect, prior to delivery of the (i)
documents  of transfer of  partnership  interests  and  substitution  of limited
partners with respect to the LP Interests being transferred to Newco pursuant to
Section 2, in the form  attached as Exhibit F, and (ii)  documents  transferring
the rights included in the Other LP Rights, in the form attached as Exhibit G.

12. SURVIVAL OF REPRESENTATIONS; INDEMNIFICATION; REMEDIES

 12.1 SURVIVAL OF REPRESENTATIONS

   All representations,  warranties, covenants, indemnities and other agreements
made by any party to this  Agreement  herein or  pursuant  hereto  shall also be
deemed  made on and as of the  Closing  Date  as  though  such  representations,
warranties, covenants, indemnities and other agreements were made on
                                      B-20
<PAGE>
and as of  such  date,  and all  such  representations,  warranties,  covenants,
indemnities   and  other   agreements   shall   survive   the  Closing  and  any
investigation, audit or inspection at any time made by or on behalf of any party
hereto, including the review of the Disclosure Materials under Section 8.4.

 12.2 AGREEMENT OF NEWCO, ONS AND ORIONSAT TO INDEMNIFY

   Subject to the  conditions  and  provisions  of this  Section  12.2,  ONS and
OrionSat  jointly and  severally  shall (and Newco shall,  pursuant to the Newco
Indemnity) jointly and severally indemnify, defend and hold harmless each of the
EP Indemnified Persons from and after the Closing Date against and in respect of
all Claims  asserted  against,  resulting to, imposed upon or incurred by any of
the EP  Indemnified  Persons  (whether such Claims are by,  against or relate to
Newco,  ONS or OrionSat or any other party,  including,  without  limitation,  a
governmental entity), directly or indirectly, by reason of or resulting from any
of the following:

           (i) any of the matters  with respect to which they would be obligated
       to indemnify the EP  Indemnified  Persons  under  Section  7.09(e) of the
       Partnership  Agreement  and which arose before or after the Closing Date,
       notwithstanding the Exchanging Partners ceasing to be limited partners of
       Orion Atlantic as of the Closing Date; or

           (ii) any Claims  asserted by one or more of the Lenders or Chase,  or
       their  successors  or assigns,  arising  from and after the Closing  Date
       under (A) any of the Capacity Agreements,  Contingent Capacity Agreements
       or Capacity  Guarantees  which are  terminated on or prior to the Closing
       Date,  (B)  any  agreements  or  other  documents  terminated  or  to  be
       terminated in connection with the Bank Agreement Termination, or (C) this
       Agreement,  in each case excluding any Claims arising from or relating to
       any breach of any  representation or warranty,  or noncompliance with any
       conditions  or  other  agreements,  given  or made by any EP  Indemnified
       Person under any of the agreements or documents referred to above in this
       paragraph or any document furnished by or on behalf of any EP Indemnified
       Person pursuant thereto.

 12.3 CONDITIONS OF INDEMNIFICATION.

   The obligations  and  liabilities of Newco,  ONS and OrionSat with respect to
their respective  indemnities  pursuant to the Newco Indemnity and Section 12.2,
resulting  from  any  Claims,  shall  be  subject  to the  following  terms  and
conditions:

   12.3.1. The party seeking indemnification (the "Indemnified Party") must give
the  other  party or  parties,  as the case may be (the  "Indemnifying  Party"),
notice of any such Claims promptly after the  Indemnified  Party receives notice
thereof;  provided  that the  failure to give such  notice  shall not affect the
rights  of the  Indemnified  Party  hereunder  except  to the  extent  that  the
Indemnifying Party shall have suffered actual damage by reason of such failure.

   12.3.2. The Indemnifying Party shall have the right to undertake,  by counsel
or other representatives of its own choosing,  the defense of such Claims at the
Indemnifying Party|Als risk and expense.

   12.3.3. In the event that the Indemnifying Party shall elect not to undertake
such  defense,  or, within a reasonable  time after notice from the  Indemnified
Party of any such  Claims,  shall fail to defend,  the  Indemnified  Party (upon
further  written  notice  to the  Indemnifying  Party)  shall  have the right to
undertake the defense,  compromise  or settlement of such Claims,  by counsel or
other  representatives of its own choosing, on behalf of and for the account and
risk of the Indemnifying  Party (subject to the right of the Indemnifying  Party
to assume defense of such Claims at any time prior to settlement,  compromise or
final determination thereof). In such event, the Indemnifying Party shall pay to
the  Indemnified  Party,  in  addition  to the other  sums  required  to be paid
hereunder,  the  costs  and  expenses  incurred  by  the  Indemnified  Party  in
connection  with such  defense,  compromise or settlement as and when such costs
and expenses are so incurred.

   12.3.4. Anything in this Section 12.3 to the contrary notwithstanding, (a) if
there is a  reasonable  probability  that Claims may  materially  and  adversely
affect the  Indemnified  Party other than as a result of money  damages or other
money payments, the Indemnified Party shall have the right, at its own cost
                                      B-21
<PAGE>
and expense,  to  participate  in the defense,  compromise  or settlement of the
Claims, (b) the Indemnifying Party shall not, without the Indemnified  Party|Als
written  consent,  settle or  compromise  any  Claims or consent to entry of any
judgment which does not include as an  unconditional  term thereof the giving by
the  claimant or the  plaintiff to the  Indemnified  Party of a release from all
liability in respect of such Claims in form and  substance  satisfactory  to the
Indemnified  Party, and (c) in the event that the Indemnifying  Party undertakes
defense of any Claims, the Indemnified Party, by counsel or other representative
of its own choosing  and at its sole cost and  expense,  shall have the right to
consult  with the  Indemnifying  Party and its counsel or other  representatives
concerning such Claims and the Indemnifying  Party and the Indemnified Party and
their respective counsel or other  representatives  shall cooperate with respect
to such  Claims  and (d) in the event  that the  Indemnifying  Party  undertakes
defense of any Claims,  the Indemnifying  Party shall have an obligation to keep
the  Indemnified  Party informed of the status of the defense of such Claims and
furnish the  Indemnified  Party with all documents,  instruments and information
that the Indemnified party shall reasonably request in connection therewith.

 12.4 SPECIFIC PERFORMANCE; NO CONSEQUENTIAL DAMAGES

   In addition to any other remedies which the parties hereto may have at law or
in equity,  the parties  hereto hereby  acknowledge  that the LP Interests,  the
Other LP Rights and the Newco Preferred  Stock are unique,  and that the harm to
Newco, ONS and OrionSat,  and the Exchanging Partners resulting from breaches by
the  other  parties  of  their  respective   obligations  cannot  be  adequately
compensated  by damages.  Accordingly,  the parties hereto agree that each party
shall  have  the  right  to  have  all  obligations,  undertakings,  agreements,
covenants and other provisions of this Agreement  specifically  performed by the
other  parties,  and that the parties  hereto  shall have the right to obtain an
order or decree of such specific  performance in any of the courts of the United
States or of any state or other political  subdivision thereof.  Notwithstanding
any  other  provision  of this  Agreement  to the  contrary,  in no event  shall
remedies  for  breach  of this  Agreement  include  a  party|Als  incidental  or
consequential damages.

13. TERMINATION

 13.1 TERMINATION

   This  Agreement  may be  terminated at any time before the Closing Date under
any one or more of the following circumstances:

       (a) by the mutual written consent of the parties hereto; or

       (b) by ONS and OrionSat or by the Exchanging Partners collectively or (as
   to a particular  Exchanging Partner),  by such Exchanging Partner, by written
   notice of  termination  to the other parties  hereto,  if the Closing has not
   occurred by January 30, 1997; provided,  however,  that the terminating party
   is not in breach of any obligations or agreements  hereunder that are causing
   any of the conditions precedent to Closing not to be satisfied.

   In addition,  following  circulation by ONS to the Exchanging Partners of the
finalized  and  implemented  Newco  Formation  Documents,  if the  finalized and
implemented  Newco  Formation  Documents are not consistent with the requirement
that Newco be substantially  identical in all material  respects to ONS, and any
discrepancies are not reasonably acceptable to such Exchanging Partner(s),  then
this Agreement may be terminated at any time on or before the Newco Finalization
Date by the Exchanging Partners  collectively or (as to a particular  Exchanging
Partner),  by such Exchanging  Partner,  by written notice of termination to the
other  parties  hereto  on  or  before  the  close  of  business  on  the  Newco
Finalization Date.

 13.2 EFFECT OF TERMINATION

   In the event this  Agreement  is  terminated  as provided in this  Section 13
(other than as to less than all the Exchanging  Partners),  this Agreement shall
forthwith become wholly void and of no effect, and the parties shall be released
from all future obligations hereunder;  provided,  however, that the obligations
of the Exchanging  Partners as to  confidentiality  provided in Section 5.6, and
the provisions of
                                      B-22
<PAGE>
Section 14.3 relating to the payment of expenses,  shall not be extinguished but
shall survive such termination;  provided, further, however, that no party shall
be relieved  from its  liabilities  for breach of  representations,  warranties,
obligations or agreements  prior to termination of this  Agreement.  The parties
hereto shall have any and all remedies to enforce such  obligations  provided at
law or in equity (including, without limitation, specific performance).

14. MISCELLANEOUS

 14.1 ADDITIONAL ACTIONS AND DOCUMENTS

   Each of the parties  hereto  hereby  agrees to take or cause to be taken such
further actions, to execute, deliver and file or cause to be executed, delivered
and filed such  further  documents,  and will  obtain such  consents,  as may be
necessary or as may be  reasonably  requested in order to fully  effectuate  the
purposes, terms and conditions of this Agreement.

 14.2 BROKER|AlS FEES OR LIABILITIES

   The fees and expenses of Salomon  Brothers shall be borne by ONS.  Except for
such fees and expenses, each party agrees to indemnify, defend and hold harmless
each of the other parties from and against any and all claims  asserted  against
such  parties for any unpaid  liability  to any broker,  finder or agent for any
brokerage fees,  finders' fees or commissions,  with respect to the transactions
contemplated by this Agreement.

 14.3 EXPENSES

   Subject to the  provisions of Section  14.2,  each party hereto shall pay its
own  expenses  incident  to this  Agreement  and the  transactions  contemplated
hereunder.

 14.4 ASSIGNMENT

   The  Exchanging  Partners  shall  have the right to assign  their  respective
rights  under the  Agreement,  in whole or in part,  to any of their  respective
Affiliates  or to  designate  any of  their  respective  Affiliates  to  receive
directly the Newco  Preferred  Stock to be acquired  hereunder (in each case, to
the extent permitted by applicable law). ONS,  OrionSat and Orion Atlantic shall
have the right to assign their rights under the Agreement,  in whole or in part,
to any of their  respective  Affiliates  (to the extent  permitted by applicable
law).  In no event shall the  assignment  by ONS,  OrionSat,  or any  Exchanging
Partner of its respective  rights under this Agreement,  whether before or after
the  Closing,  release  ONS,  OrionSat,  or  any  Exchanging  Partner  from  its
respective liabilities and obligations hereunder.

 14.5 ENTIRE AGREEMENT; AMENDMENT

   This  Agreement,  including  the  Schedules,  Exhibits  and  other  documents
referred to herein or furnished  pursuant hereto constitute the entire agreement
among the parties hereto with respect to the  transactions  contemplated  herein
and therein, and supersede all prior oral or written agreements,  commitments or
understandings  with respect to the matters provided for herein and therein.  No
amendment or modification of this Agreement shall be valid or binding unless set
forth in writing and duly  executed  and  delivered  by the party  against  whom
enforcement of the amendment or modification is sought.

 14.6 WAIVER

   No delay or failure on the part of any party hereto in exercising  any right,
power or privilege under this Agreement or under any other  documents  furnished
in connection  with or pursuant to this  Agreement  shall impair any such right,
power  or  privilege  or  be  construed  as a  waiver  of  any  default  or  any
acquiescence  therein. No single or partial exercise of any such right, power or
privilege shall preclude the further exercise of such right, power or privilege,
or the exercise of any other right, power or
                                      B-23
<PAGE>
privilege.  No waiver  shall be valid  against any party  hereto  unless made in
writing  and signed by the party  against  whom  enforcement  of such  waiver is
sought and then only to the extent expressly specified therein.

 14.7 CONSENT TO JURISDICTION

   This  Agreement  and  the  duties  and  obligations  of  ONS,  OrionSat,  the
Exchanging Partners hereunder and under each of the documents referred to herein
shall  be  enforceable  against  any of  ONS,  OrionSat,  or one or  more of the
Exchanging Partners,  as the case may be, in the courts of the United States and
of the States of Maryland and Delaware. For such purpose, ONS, OrionSat and each
of the  Exchanging  Partners  hereby  irrevocably  submit  to the  non-exclusive
jurisdiction  of such  courts,  and  agrees  that all  claims in respect of this
Agreement and such other  documents  may be heard and  determined in any of such
courts.

 14.8 SEVERABILITY

   If any part of any  provision  of this  Agreement  or any other  agreement or
document given pursuant to or in connection with this Agreement shall be invalid
or unenforceable in any respect, such part shall be ineffective to the extent of
such  invalidity  or  unenforceability  only,  without in any way  affecting the
remaining parts of such provision or the remaining provisions of this Agreement.

 14.9 GOVERNING LAW

   This Agreement,  the rights and  obligations of the parties  hereto,  and any
claims or disputes  relating  thereto,  shall be governed  by and  construed  in
accordance  with the laws of the State of Delaware  (excluding the choice of law
rules thereof).

 14.10 NOTICES

   All notices,  demands,  requests, or other communications which may be or are
required to be given,  served,  or sent by any party to any other party pursuant
to this  Agreement  shall be in  writing  and shall be hand  delivered,  sent by
overnight courier or mailed by first-class, registered or certified mail, return
receipt  requested,  postage  prepaid,  or transmitted by telegram,  telecopy or
telex, addressed as follows:

           (i) If to Orion Atlantic, ONS or OrionSat:

               2440 Research Boulevard
               Suite 400
               Rockville, Maryland 20817
               Attn: Richard H. Shay, Esq.

           (ii)If to the Exchanging Partners, to each of the

               following who is an Exchanging Partner:
               British Aerospace Holding, Inc.
               22070 Broderick Drive
               Sterling, Virginia 20166
               Attn: Charles Gaba

               COM DEV Satellite Communications Limited
               155 Sheldon Drive
               Cambridge, Ontario
               Canada N1R 7H6
               Attn: David Belbeck
                                      B-24
<PAGE>
               Kingston Communications International Limited
               Telephone House
               Carr Lane
               Kingston-upon-Hull
               HU1 3RE England
               Attn: John Bailey
               Lockheed Martin Commercial Launch Services, Inc.
               Attention: Chester Wheeler

               Lockheed Martin Commercial
               Launch Services, Inc.
               P.O. Box 179
               MSM DC-1400
               Denver, Colorado 80201-0179

               MCN Sat US, Inc.
               37, Avenue Louis Breguet B.P.1
               78146 V|felizy Villacoublay Cedex
               France
               Attn: Claude Goumy

               Trans-Atlantic Satellite, Inc.
               1211 Avenue of the Americas
               41st Floor
               New York, NY 10036
               Attn: Ken Mori

Each party may designate by notice in writing a new address to which any notice,
demand,  request or  communication  may thereafter be so given,  served or sent.
Each notice,  demand,  request,  or communication which shall be hand delivered,
sent,  mailed,  telecopied or telexed in the manner  described  above,  or which
shall be delivered to a telegraph company,  shall be deemed  sufficiently given,
served,  sent,  received  or  delivered  for all  purposes at such time as it is
delivered to the addressee (with the return receipt,  the delivery  receipt,  or
(with respect to a telecopy or telex) the  answerback  being deemed  conclusive,
but not  exclusive,  evidence of such  delivery)  or at such time as delivery is
refused by the addressee upon presentation.

 14.11 HEADINGS

   Section headings  contained in this Agreement are inserted for convenience of
reference  only,  shall  not be deemed  to be a part of this  Agreement  for any
purpose, and shall not in any way define or affect the meaning,  construction or
scope of any of the provisions hereof.

 14.12 EXECUTION IN COUNTERPARTS

   To  facilitate  execution,   this  Agreement  may  be  executed  in  as  many
counterparts  as may be required.  It shall not be necessary that the signatures
of, or on behalf of, each party, or that the signatures of all persons  required
to bind any party,  appear on each counterpart;  but it shall be sufficient that
the  signature  of, or on behalf of, each party,  or that the  signatures of the
persons required to bind any party,  appear on one or more of the  counterparts.
All counterparts shall collectively  constitute a single agreement. It shall not
be necessary  in making  proof of this  Agreement to produce or account for more
than a number of  counterparts  containing the  respective  signatures of, or on
behalf of, all of the parties hereto.

 14.13 LIMITATION ON BENEFITS

   The covenants,  undertakings and agreements set forth in this Agreement shall
be solely for the  benefit  of, and shall be  enforceable  only by, the  parties
hereto and their respective successors, heirs, executors,  administrators, legal
representatives and permitted assigns, except that (i) the agreements set
                                      B-25
<PAGE>
forth in Section 10 also shall be for the  benefit  of, and  enforceable  by, EP
Indemnified  Persons  and  their  respective   successors,   heirs,   executors,
administrators,  legal representatives or permitted assigns, and (ii) agreements
relating  to  Affiliates  of  the  Exchanging  Partners  named  or  referred  to
specifically herein also shall be for the benefit of, enforceable by and (to the
extent  permitted  by  law)  enforceable   against  such  Affiliates  and  their
respective successors, heirs, executors,  administrators,  legal representatives
or permitted assigns.

 14.14 BINDING EFFECT

   Subject to any provisions hereof restricting assignment, this Agreement shall
be binding  upon and shall inure to the benefit of the parties  hereto and their
respective successors, heirs, executors,  administrators,  legal representatives
and assigns.
                                      B-26
<PAGE>
IN WITNESS  WHEREOF,  the parties hereto have duly executed this  Agreement,  or
have caused this  Agreement to be duly executed on their  behalf,  as of the day
and year first above written.

                                   INTERNATIONAL PRIVATE
                                     SATELLITE PARTNERS, L.P.
                                   By: Orion Satellite Corporation, its gen-
                                   eral partner

                                   By: /s/
                                       -----------------------------------------



                                   ORION NETWORK SYSTEMS, INC.

                                   By: /s/
                                       -----------------------------------------



                                   ORION SATELLITE CORPORATION 

                                   By: /s/
                                       -----------------------------------------
                                      B-27
<PAGE>
                                   BRITISH AEROSPACE
                                     COMMUNICATIONS, INC.

                                   By: /s/
                                       -----------------------------------------



                                   COM DEV SATELLITE COMMUNICATIONS  LIMITED

                                   By: /s/

                                       -----------------------------------------



                                   KINGSTON COMMUNICATIONS
                                     INTERNATIONAL LIMITED

                                   By: /s/
                                       -----------------------------------------



                                   LOCKHEED MARTIN COMMERCIAL
                                     LAUNCH SERVICES, INC.

                                   By: /s/
                                       -----------------------------------------


                                   MCN SAT US, INC.

                                   By: /s/
                                       -----------------------------------------



                                   TRANS-ATLANTIC SATELLITE, INC.

                                   By: /s/
                                       -----------------------------------------
                                      B-28
<PAGE>
                                                                       EXHIBIT A
                                                                     TO EXCHANGE
                                                                       AGREEMENT

                                   DEFINITIONS

   "Affiliate"  means: (a) with respect to a person, any member of such person's
family;  (b) with  respect to an entity,  any  officer,  director,  stockholder,
partner  or  investor  of or in such  entity or of or in any  Affiliate  of such
entity;  and (c) with respect to a person or entity,  any person or entity which
directly  or  indirectly,  through  one or  more  intermediaries,  Controls,  is
Controlled by, or is under common Control with such person or entity.

   "Agreement" means the Exchange Agreement, including each of the Schedules and
Exhibits hereto.

   "Agreement of Principles" means the Agreement of Principles dated as of April
2, 1992, among Orion Atlantic, OrionSat, ONS and the Exchanging Partners.

   "BAe" means British Aerospace Communications, Inc., a Delaware corporation.

   "Business Day" means any day on which  commercial  banks in New York City are
not required or authorized to close.

   "Certificate of Designations"  means the Certificate of Designations,  Rights
and  Preferences  establishing  the terms and relative rights and preferences of
the Newco  Preferred Stock in  substantially  the form set forth as Exhibit B to
this Agreement.

   "Claims" means all demands, claims, actions or causes of action, assessments,
losses,   damages  (including,   without   limitation,   diminution  in  value),
liabilities,  costs  and  expenses,  including,  without  limitation,  interest,
penalties and attorneys' fees and disbursements.

   "Closing"  means the  closing of the  exchange of  interests  pursuant to the
Agreement.

   "Closing  Date"  means such time and date as shall be as  proposed by ONS not
more than ten days after satisfaction or waiver of all the conditions  specified
in Sections 9 and 10.

   "COM  DEV"  means  COM  DEV  Satellite  Communications  Limited,  a  Canadian
corporation.

   "Consent  and  Agreement"  means the Consent and  Agreement  effective  as of
December  20,  1991,  among Orion  Atlantic,  OrionSat,  ONS and the  Exchanging
Partners.

   "Control"  means  possession,  directly or indirectly,  of power to direct or
cause the  direction of  management or policies  (whether  through  ownership of
voting securities, by agreement or otherwise).

   "Encumbrance"  means  any  mortgage,  lien,  pledge,  encumbrance,   security
interest,  deed of trust,  option,  encroachment,  reservation,  order,  decree,
judgment,  condition,  restriction,  charge,  agreement,  claim or equity of any
kind.

   "EP Indemnified Persons|Al means the Exchanging Partners and their respective
Affiliates, employees, representatives, agents, officers and directors.

   "Exhibit" means an exhibit attached to the Agreement.

   "Exchange Act" means the Exchange Act of 1934, as amended.

   "Kingston" means Kingston  Communications  International  Limited,  a company
organized under the laws of England.

   "Kingston Sales  Representative  Agreements"  means the Sales  Representative
Agreement  dated as of June 30,  1994,  between  Orion  Atlantic  and a Kingston
Affiliate,  Kingston  Satellite  Systems  Limited,  as  amended,  and the Ground
Operations  Agreement  dated as of June 30,  1994,  between  Orion  Atlantic and
Kingston, as amended.
                                      B-29
<PAGE>
   "Laws"  means  all  foreign,   federal,  state  and  local  statutes,   laws,
ordinances,  regulations,  rules, resolutions,  orders,  determinations,  writs,
injunctions,  awards (including,  without limitation, awards of any arbitrator),
judgments and decrees applicable to the specified persons or entities and to the
businesses and assets thereof (including,  without limitation,  Laws relating to
securities  registration  and  regulation;   the  sale,  leasing,  ownership  or
management of real property;  employment  practices,  terms and conditions,  and
wages and hours;  building standards,  land use and zoning;  safety,  health and
fire prevention; and environmental protection).

   "Limited  Partner" means ONS and the Exchanging  Partners as limited partners
of Orion Atlantic.

   "LP Interest" means a limited partnership interest in Orion Atlantic.

   "Lockheed Martin" means Lockheed Martin  Commercial Launch Services,  Inc., a
Delaware corporation.

   "Material  Adverse  Effect" means a material  adverse effect on the business,
results of operations, liabilities, properties, assets or financial condition of
ONS and its Subsidiaries,  taken as a whole, or a material adverse effect on the
transactions contemplated by this Agreement.

   "Material Contract" means any contract, instrument, commitment or arrangement
of ONS which  ONS would be  required  to file  with the SEC as an  exhibit  to a
registration statement on Form S-1 pursuant to Item 601(b)(10) of Regulation S-K
under the Securities Act.

   "MCN Sat" means MCN Sat US, Inc., a Delaware corporation.

   "MCN Sat Sales  Representative  Agreements"  means  the Sales  Representative
Agreement  dated as of June 30, 1995 between Orion Atlantic and MCN Sat Service,
S.A., as amended,  and the Ground Operations Agreement dated as of June 30, 1995
between Orion Atlantic and MCN Sat Service, S.A., as amended.

   "Newco Common Stock" means shares of common stock,  par value $.01 per share,
of Newco.

   "Newco  Preferred  Stock" means shares of Series C 6%  Cumulative  Redeemable
Convertible  Preferred  Stock of Newco,  par value  $.01 per  share,  having the
rights and preferences set forth in the Certificate of Designations.

   "ONS" means ONS Network Systems, Inc., a Delaware corporation.

   "ONS Common Stock" means shares of common stock, par value $.01 per share, of
ONS.

   "ONS Series A Preferred  Stock" means the Series A 8%  Cumulative  Redeemable
Convertible Preferred Stock of ONS.

   "ONS Series B Preferred  Stock" means the Series B 8%  Cumulative  Redeemable
Convertible Preferred Stock of ONS.

   "Orion Atlantic" means  International  Private  Satellite  Partners,  L.P., a
Delaware limited partnership.

   "Option  Agreements"  means the applicable  Option Agreement  effective as of
December 20, 1991,  among Orion  Atlantic,  OrionSat and each of the  Exchanging
Partners.

   "OrionSat" means Orion Satellite Corporation, a Delaware corporation.

   "Partnership  Agreement"  means the Second Amended and Restated  Agreement of
Limited  Partnership  of  International  Private  Satellite  Partners,  L.P., as
amended.

   "PPU Agreement" means the Preferred Participating Unit Agreements dated as of
October 7, 1993,  among  Orion  Atlantic,  OrionSat,  and each of ONS,  COM DEV,
Kingston, Lockheed Martin and MCN Sat.

   "Preferred Bidder  Agreement" means the Preferred Bidder Agreement  effective
as of December 20, 1991, among Orion Atlantic,  OrionSat, ONS and the Exchanging
Partners.
                                      B-30
<PAGE>
   "Refund Agreement" means the Refund Agreement, dated December 31, 1994, among
Orion Atlantic, OrionSat, ONS and certain of the Exchanging Partners.

   "SEC" means the U.S. Securities and Exchange Commission.

   "Section" means a Section (or a subsection) of the Agreement.

   "Securities  Act" means the Securities Act of 1933, as amended,  and all laws
promulgated pursuant thereto or in connection therewith.

   "Subscription  Agreement" means the Subscription  Agreements  effective as of
December 20, 1991, between Orion Atlantic and each of the Exchanging Partners.

   "Subsidiary" means, with respect to any Person, any corporation, partnership,
association or other business  entity of which (i) if a corporation,  a majority
of the total voting  power of shares of stock  entitled  (without  regard to the
occurrence of any contingency) to vote in the election of directors, managers or
trustees thereof is at the time owned or controlled,  directly or indirectly, by
that  Person  or one or more of the  other  Subsidiaries  of  that  Person  or a
combination  thereof,  or (ii) if a  partnership,  association or other business
entity,  a majority  of the  partnership  or other  similar  ownership  interest
thereof is at the time  owned or  controlled,  directly  or  indirectly,  by any
Person or one or more Subsidiaries of that person or a combination  thereof. For
purposes  hereof,  a Person  or  Persons  shall  be  deemed  to have a  majority
ownership  interest in a partnership,  association  or other business  entity if
such Person or Persons shall be allocated a majority of partnership, association
or other  business  entity  gains or  losses  or shall be or  control  a general
partner of such  partnership,  association  or other  business  entity.  Without
limiting  the  foregoing,  International  Private  Satellite  Partners,  L.P., a
Delaware  limited  partnership,  shall  be  deemed  to be a  Subsidiary  of  the
Corporation for so long as the  Corporation or any of its other  Subsidiaries is
the general partner thereof.

   "TA Sat" means Trans-Atlantic Satellite, Inc., a Delaware corporation.

   "Tax Adjustment  Factor" means,  with respect to (i) BAe,  $11,634;  (ii) COM
DEV, $1,940; (iii) Kingston,  $1,940; (iv) Lockheed Martin, $3,878; (v) MCN Sat,
$3,878; and (vi) TA Sat, $3,878.
                                      B-31
<PAGE>
                FIRST AMENDMENT TO SECTION 351 EXCHANGE AGREEMENT
                             AND PLAN OF CONVERSION

   
   THIS FIRST AMENDMENT TO SECTION 351 EXCHANGE AGREEMENT AND PLAN OF CONVERSION
(this   "Amendment")  is  entered  into  as  of  December  1996,  by  and  among
International  Private Satellite Partners,  L.P., a Delaware limited partnership
("Orion Atlantic"); Orion Network Systems, Inc., a Delaware corporation ("ONS");
Orion Satellite Corporation,  a Delaware corporation  ("OrionSat");  and each of
the  following  entities:  British  Aerospace  Communications,  Inc., a Delaware
corporation,  COM DEV Satellite  Communications Limited, a Canadian corporation,
Kingston Communications  International Limited, a company incorporated under the
laws of England,  Lockheed Martin Commercial  Launch Services,  Inc., a Delaware
corporation,  MCN Sat US,  Inc.,  a  Delaware  corporation,  and Trans  Atlantic
Satellite,   Inc.,  a  Delaware  corporation   (collectively,   the  "Exchanging
Partners")  under the Section 351  Exchange  Agreement  and Plan of  Conversion,
dated as of June __, 1996,  between and among Orion Atlantic,  ONS, OrionSat and
the Exchanging Partners (the "Exchange Agreement").     

   WHEREAS,  Orion  Atlantic,  ONS and OrionSat are currently  pursuing and will
continue to pursue certain financing  transactions that were contemplated by the
Exchange  Agreement,  and the  parties  hereto  desire  to  amend  the  Exchange
Agreement  to  extend  potentially  the  termination  date  to  provide  for the
possibility  that such  financings will not be completed by January 30, 1997 and
to refund certain payments.

   NOW,  THEREFORE,  for and in consideration of the foregoing and of the mutual
covenants and  agreements  hereinafter  set forth,  the parties  hereto agree as
follows:

                      1. CLOSING TERMINATION DATE EXTENSION

   The first  paragraph of Section  13.1(b) of the Exchange  Agreement is hereby
amended to read in its entirety as follows:

       (b) by ONS and OrionSat or by the Exchanging Partners collectively or (as
   to a particular  Exchanging Partner),  by such Exchanging Partner, by written
   notice of  termination  to the other parties  hereto,  if the Closing has not
   occurred  by April  30,  1997 (the  "Closing  Termination  Date");  provided,
   however,  that the  terminating  party is not in breach of any obligations or
   agreements  hereunder  that are causing any of the  conditions  precedent  to
   Closing not to be satisfied.

                          2. REFUND OF CERTAIN PAYMENTS

   Section 3.2(c) of the Exchange  Agreement is hereby amended by adding, at the
end thereof, the following:

   Notwithstanding  the  foregoing  provisions  of this Section  3.2(c),  to the
extent that amounts are paid by one or more  Exchanging  Partners (or Affiliates
of such Exchanging  Partners) (i) pursuant to the Capacity  Agreements and which
are  subject  to being  refunded  under the  Refund  Agreement  ("Firm  Capacity
Payments")  during the  Adjustment  Period for  obligations  of such  Exchanging
Partners (or Affiliates) arising after January 29, 1997 and prior to the Closing
Date,  and (ii)  pursuant to the  Contingent  Capacity  Agreements  ("Contingent
Capacity  Payments")  during  the  Adjustment  Period  for  obligations  of such
Exchanging  Partners (or Affiliates)  arising after the date hereof and prior to
the Closing Date (collectively, "Payments Subject to Refund"), then if (and only
if) ONS or Newco  completes a Bond  Offering  prior to the  Closing  Termination
Date,

       (x) to the  extent  that  the  gross  proceeds  from  the  Bond  Offering
   (excluding any amounts required to be set aside or pledged for the purpose of
   pre-funding interest payments) for ONS or Newco, plus the gross proceeds from
   the sale of  Convertible  Subordinated  Debentures  to BAe and Matra  Marconi
   Space UK Limited ("Matra Marconi Space") or their Affiliates, exceeds the sum
   of (1) the amounts  necessary to effect the Credit  Facility  Refinancing and
   all other  obligations  relating  thereto  or  arising  therefrom,  including
   without limitation all principal and accrued interest due with respect to the
   Credit  Facility and all breakage fees and costs arising from  termination of
   the interest 
                                      B-32
<PAGE>
   rate hedge relating to the Credit Facility,  (2) $49.4 million,  representing
   the  proposed  initial  payments to be made by ONS or Newco under the Orion 2
   Satellite  Contract and related  Orion 2 Option  Agreement,  (3) $13 million,
   representing  the  incentive  payments  that will be payable to Matra Marconi
   Space or its Affiliates with respect to Orion 1 upon or immediately following
   the Credit Facility Refinancing,  (4) $3.5 million,  representing the amounts
   that  will be  payable  to STET  upon or  immediately  following  the  Credit
   Facility Refinancing,  (5) an amount reasonably determined by ONS or Newco to
   be necessary working capital for ONS or Newco to conduct operations following
   the Bond Offering and other transactions (not to exceed $10 million), and (6)
   the costs and expenses of the Bond  Offering,  the  Convertible  Subordinated
   Debenture  financings and related transactions (not to exceed $14.3 million),
   the excess (the "Available Funds") shall be used to refund the amounts of the
   Payments  Subject  to Refund to the  respective  Exchanging  Partners  at the
   Closing (or, if such excess is not  sufficient  to refund all of the Payments
   Subject to Refund to the respective Exchanging Partners,  the Available Funds
   shall be used first to refund  Contingent  Capacity Payments to the extent of
   such  Available  Funds,  and second to refund Firm  Capacity  Payments to the
   extent of any remaining Available Funds, in each case with partial refunds to
   be made pro  rata  among  the  Exchanging  Partners  in  proportion  to their
   respective  applicable  Payments Subject to Refund),  and amounts so refunded
   shall not be included in clause (i)(A) of this Section 3.2(c); and

       (y) any portions of the Payments Subject to Refund not so refunded to the
   respective  Exchanging  Partners at the  Closing  shall be included in clause
   (i)(A) of this  Section  3.2(c)  as part of the  Adjustment  Amounts  of such
   Exchanging Partners.

   The refund of Available  Funds shall be made at or within three business days
after the  Closing.  ONS and Newco  shall  deliver  to the  Exchanging  Partners
simultaneously  with  such  refund  a  certificate  of  their  respective  chief
financial  officers  setting  forth in  reasonable  detail all  calculations  or
computations  required or  contemplated  by this Section  3.2(c),  including the
amount and  application  of the  Available  Funds.  ONS and Newco shall  provide
promptly,  to any Exchanging Partner requesting the same, such additional detail
supporting such  calculations  and  computations  and such back-up or supporting
documentation as such Exchanging Partner may reasonably request.

                                3. TAX ADJUSTMENT

   Section 3.2(c)(ii) of the Exchange Agreement is hereby amended to read in its
entirety as follows:

           (ii) the  product  of the  number  of days in the  Adjustment  Period
       through and including (but not beyond) January 29, 1997 multiplied by the
       Tax Adjustment Factor for such Exchanging Partner, divided by

                 4. SALE OF CONVERTIBLE SUBORDINATED DEBENTURES

   Notwithstanding  the  provisions  of Section  5.8 of the  Exchange  Agreement
contemplating  that Newco will, as of the Closing  Date,  complete a Convertible
Subordinated  Debenture Offering of approximately $125 million,  it is presently
intended that the Convertible  Subordinated  Debenture  Offering consist only of
purchases of $50 million of Convertible  Subordinated  Debentures by BAe and $10
million of  Convertible  Subordinated  Debentures  by Matra  Marconi  Space,  or
Affiliates thereof. Accordingly, all references in the Exchange Agreement to the
Convertible  Subordinated Debenture Offering shall refer only to the $60 million
of Convertible  Subordinated Debentures to be purchased by BAe and Matra Marconi
Space,  or Affiliates  thereof.  While not intended to be legally  binding,  BAe
hereby  reconfirms  that it or its Affiliates  intend to purchase from Newco $50
million of Convertible Subordinated Debentures on terms being negotiated between
BAe and  ONS,  and MCN Sat  hereby  confirms  that  Matra  Marconi  Space or its
Affiliates   intends  to  purchase   from  Newco  $10  million  of   Convertible
Subordinated  Debentures  on terms  substantially  the same as those  ultimately
agreed upon by BAe and ONS for the BAe investment.  Section 10.8 of the Exchange
Agreement is hereby amended to read in its entirety as follows:Newco  shall have
raised at least $60 million from the sale of Convertible Subordi-
                                      B-33
<PAGE>
nated Debentures,  including the sale of $50 million of Convertible Subordinated
Debentures to BAe or its  Affiliates  and the sale of $10 million of Convertible
Subordinated Debentures to Matra Marconi Space or its Affiliates.

          5. ELIMINATION OF KINGSTON INVESTMENT IN PPU INTEREST SHARES

   Section  3.2(d) of the Exchange  Agreement  is hereby  amended to delete such
Section in its entirety; Section 3.2(a)(iii) of the Exchange Agreement is hereby
amended to delete the  language  "other than  interest  paid to  Kingston  under
Section 3.2(d)" in its entirety;  Section  3.2(b)(iii) of the Exchange Agreement
is hereby amended to delete the language "and PPU Interest Shares  calculated as
set forth in Section  3.2(d)" in its  entirety;  the last  paragraph  of Section
3.2(b) of the  Exchange  Agreement  is hereby  amended to replace  the  language
"Section  3.2(b),  in Sections  3.2(c) and 3.2(d)"  with the  language  "Section
3.2(b) and in Section  3.2(c);  and Section 3.2(c) of the Exchange  Agreement is
hereby  amended to delete the language  "other than Kingston (or an Affiliate of
Kingston)" in its entirety.

                          6. ORION 2 SATELLITE CONTRACT

   Section  9.7 of the  Exchange  Agreement  shall  be  amended  to  read in its
entirety as follows:

   The Option  Agreement,  dated  December 10, 1996,  between Orion Atlantic and
Matra  Marconi Space  ("Orion 2 Option  Agreement"),  shall be in full force and
effect;  Orion Atlantic shall not be in default  thereunder;  and Orion Atlantic
shall have made all payments required to be made thereunder  through the earlier
of the Closing Date and March 31, 1997.  Restated  Amendment #10, dated December
10, 1996,  to the Second  Amended and Restated  Purchase  Contract,  dated as of
September 26, 1991,  between Orion Atlantic and Matra Marconi Space, as amended,
shall be in full force and effect,  and Orion  Atlantic  shall not be in default
thereunder.

                                7. MISCELLANEOUS

   7(a) Defined Terms

   Capitalized  terms used in this  Amendment and not otherwise  defined in this
Amendment shall have the meanings provided for in the Exchange Agreement.

   7(b)Governing Law

   This Amendment,  the rights and  obligations of the parties  hereto,  and any
claims or disputes  relating  thereto,  shall be governed  by and  construed  in
accordance with the same laws as govern the Exchange Agreement.

   7(c)Counterparts

   To  facilitate  execution,   this  Amendment  may  be  executed  in  as  many
counterparts  as may be  required;  and it  shall  not  be  necessary  that  the
signatures  of, or on behalf  of,  each  party,  or that the  signatures  of all
persons required to bind any party, appear on each counterpart;  but it shall be
sufficient  that the  signature  of, or on behalf of,  each  party,  or that the
signatures of the persons  required to bind any party,  appear on one or more of
the  counterparts.  All  counterparts  shall  collectively  constitute  a single
agreement.  It shall not be  necessary  in  making  proof of this  Amendment  to
produce  or  account  for more  than a number  of  counterparts  containing  the
respective signatures of, or on behalf of, all of the parties hereto.

   7(d) Facsimile Execution

   To facilitate  execution,  this Amendment may be executed  through the use of
facsimile  transmission,  and a counterpart  of this Amendment that contains the
facsimile  signature  of a party,  which  counterpart  has been  transmitted  by
facsimile  transmission  to each of the other parties  hereto at such  facsimile
numbers as such other  parties  shall  request,  shall  constitute  an  executed
counterpart of this Amendment.
                                      B-34
<PAGE>
   7(e) Ratification

   The Exchange Agreement,  as amended and modified by this First Amendment,  is
in all respects  ratified and confirmed and the terms,  covenants and agreements
thereof shall be and remain in full force and effect. The parties executing this
First  Amendment agree that the Exchange  Agreement,  as amended and modified by
this First  Amendment,  shall be remain  valid and  binding  upon such  parties,
notwithstanding  the failure of one or more Exchanging  Partners to execute this
First Amendment and  notwithstanding  any such non-executing  Exchanging Partner
seeking to terminate the Exchange Agreement as to such non-executing  Exchanging
Partner under Section  13.1(b) of the Exchange  Agreement after January 30, 1997
and before April 30, 1997.

   7(f) Effectiveness of the Amendment

   This First Amendment to Section 351 Exchange Agreement and Plan of Conversion
is being made pursuant to Section 14.5 of the Exchange  Agreement which provides
that an amendment to the Exchange  Agreement shall be valid and binding when set
forth in writing and duly  executed  and  delivered  by the party  against  whom
enforcement  of the  amendment  is  sought.  The  parties  executing  this First
Amendment  agree that this First  Amendment shall be valid and binding upon such
parties,  notwithstanding  the  failure of one or more  Exchanging  Partners  to
execute this First Amendment.

   IN WITNESS  WHEREOF,  the undersigned  have duly executed this Amendment,  or
have caused this  Amendment to be duly executed on their  behalf,  as of the day
and year first hereinabove set  forth.INTERNATIONAL  PRIVATE SATELLITE PARTNERS,
L.P.

                              INTERNATIONAL PRIVATE
                                SATELLITE PARTNERS, L.P.


                              By: Orion Satellite Corporation, its general 
                              partner

                              By:  /s/
                                   -----------------------------------------

                              ORION NETWORK SYSTEMS, INC.

                              By:  /s/
                                   -----------------------------------------



                              ORION SATELLITE CORPORATION

                              By:  /s/
                                   -----------------------------------------
                                      B-35
<PAGE>
                              BRITISH AEROSPACE
                                COMMUNICATIONS, INC.

                              By: /s/
                                   -----------------------------------------



                              COM DEV SATELLITE COMMUNICATIONS
                                LIMITED

                              By: /s/
                                   -----------------------------------------



                              KINGSTON COMMUNICATIONS
                                INTERNATIONAL LIMITED

                              By: /s/
                                   -----------------------------------------



                              LOCKHEED MARTIN COMMERCIAL
                                LAUNCH SERVICES, INC.

                              By: /s/
                                   -----------------------------------------



                              MCN SAT US, INC.

                              By: /s/
                                   -----------------------------------------



                              TRANS-ATLANTIC SATELLITE, INC.

                              By: /s/
                                   -----------------------------------------
                                      B-36
<PAGE>
                                                                    ATTACHMENT C

                                     FORM OF
                          CERTIFICATE OF DESIGNATIONS,
                             RIGHTS AND PREFERENCES
                                       OF
                        SERIES C 6% CUMULATIVE REDEEMABLE
                           CONVERTIBLE PREFERRED STOCK
                                       OF
                           ORION NEWCO SERVICES, INC.

                           --------------------------

                             PURSUANT TO SECTION 151
                         OF THE GENERAL CORPORATION LAW
                            OF THE STATE OF DELAWARE

                           --------------------------

   The undersigned DOES HEREBY CERTIFY that, pursuant to the authority contained
in Article FOURTH of the Certificate of  Incorporation  of Orion Newco Services,
Inc., a Delaware corporation (the "Corporation"), and in accordance with Section
151 of the  General  Corporation  Law of the  State of  Delaware,  the  Board of
Directors  of the  Corporation  has  authorized  the  creation  of a  series  of
Preferred Stock of the Corporation having the designation Series C 6% Cumulative
Redeemable  Convertible  Preferred  Stock and  having  the  powers,  rights  and
preferences,  and the qualifications,  limitations and restrictions  thereof, as
are set forth in Exhibit A hereto and made a part hereof and that the  following
resolution was duly adopted by the Board of Directors of the Corporation:

   RESOLVED,  that a series of authorized  Preferred  Stock, par value $0.01
   per share, of the  Corporation  be, and it hereby is,  created;  that the
   shares of such  series  shall be,  and they  hereby  are,  designated  as
   "Series C 6% Cumulative Redeemable Convertible Preferred Stock;" that the
   number of shares  constituting  such  series  shall be, and it hereby is,
   fixed at _______,000; and that the powers, rights and preferences and the
   qualifications,  limitations and restrictions  thereof,  of the shares of
   such series are as set forth in Exhibit A attached hereto and made a part
   hereof.

   IN WITNESS  WHEREOF,  the  Corporation  has caused its  corporate  seal to be
hereunto  affixed and this  Certificate  to be signed by its President and Chief
Executive  Officer and attested to by its Vice  President,  Corporate  and Legal
Affairs, and Secretary this      day of          , 1997.



                                   ORION NEWCO SERVICES, INC.

                                   By:
                                      ---------------------------------------
   
[SEAL]                             Name: W. Neil Bauer
                                   Title: President/Chief Executive
                                          Officer
    

ATTEST:

   
- -----------------------------------------
Name: Richard H. Shay, Esq.
Title: Vice President, Corporate and
       Legal Affairs/Secretary
    
<PAGE>
                        SERIES C 6% CUMULATIVE REDEEMABLE
                           CONVERTIBLE PREFERRED STOCK

   The following sections set forth the powers, rights and preferences,  and the
qualifications,  limitations  and  restrictions  thereof,  of the  Corporation's
Series C 6% Cumulative Redeemable Convertible Preferred Stock. Capitalized terms
used herein are defined in Section 10 below.

   Section 1. Dividends.

   1A.  General  Obligation.  Subject  to the  preferential  rights  of Series A
Preferred  Stock or Series B Preferred  Stock  ranking  senior to the  Preferred
Stock,  the record  holders of  Preferred  Stock  shall be  entitled  to receive
dividends, when, as and if declared by the Corporation's board of directors (the
"Board")  and to the  extent  permitted  under the  General  Corporation  Law of
Delaware,  as amended,  as provided in this Section 1, subject to paragraph  1F.
Dividends  shall accrue on a daily basis  commencing  on the Date of Issuance of
each  Preferred  Share  at the  simple  interest  rate  of 6% per  annum  of the
Liquidation  Value  thereof,  and shall be payable as provided in paragraph  1B.
Dividends  shall cease  accruing  upon the  earliest to occur of (i) the date on
which the  Liquidation  Value of such Preferred  Share is paid, (ii) the date on
which such Preferred  Share is converted into shares of Common Stock  hereunder,
or (iii) the Maturity Date. Such dividends shall accrue whether or not they have
been  declared and whether or not there are net profits,  surplus or other funds
of the Corporation legally available for the payment of dividends.

   1B.  Payment of  Dividends.  Subject to the  provisions  of  paragraph 1A and
paragraph 1F,  dividends shall be payable,  in arrears,  following each Dividend
Reference Date within twenty days after such Dividend Reference Date. The amount
of the dividend on each share of Preferred Stock payable following each Dividend
Reference  Date  shall  equal the  aggregate  amount of all  accrued  and unpaid
dividends on such share of Preferred  Stock from the Prior Dividend Date (or, in
the case of the first  dividend  paid with  respect to such  share,  the Date of
Issuance of such Preferred  Share) through such Dividend  Reference Date. To the
extent any  dividend is not paid within  twenty days after a Dividend  Reference
Date,  all dividends  which have accrued and remain  unpaid on each  outstanding
Preferred  Share through such Dividend  Reference Date shall be accumulated  and
shall remain  accumulated  dividends with respect to such Preferred  Share until
the date paid. No interest,  dividend or sum of money in lieu of interest, shall
be payable in respect of any  dividend  payment or payments  that may be accrued
and unpaid.

   1C.  Distribution  of Partial  Dividend  Payments.  Except in connection with
redemptions or repurchases  pursuant to paragraph 3A or 3B below, if at any time
the  Corporation  pays less than the total amount of dividends then accrued with
respect to the Preferred  Stock such payment shall be distributed  ratably among
the holders thereof based upon the aggregate accrued but unpaid dividends on the
Preferred  Shares  held by each such  holder and such  payment  shall be applied
first to dividends which have accrued on such Preferred Shares during the period
since the  latest  preceding  Dividend  Reference  Date and second to reduce any
previously accumulated dividends with respect to such Preferred Shares.

   1D.  Payment of Dividends in Common Stock.  Except as  specifically  provided
herein,  the  Corporation  shall pay all dividends with respect to the Preferred
Stock (including,  in the case of a redemption,  any amount equal to accrued and
unpaid dividends  constituting a portion of the Redemption  Price) in fully paid
and non-assessable  shares of Common Stock. The number of shares of Common Stock
distributable  in a dividend on each share of Preferred  Stock shall be equal to
the quotient obtained by dividing (a) the amount of such dividend, as determined
under  paragraph  1B, by (b) the  higher of (i) the  Market  Price of the Common
Stock on the Dividend Reference Date immediately  preceding the dividend payment
and (ii) the Series A/B Dilution Price.  When the Corporation pays a dividend to
the holders of Preferred  Stock,  the  Corporation  shall provide each holder of
Preferred  Stock with a calculation of the aggregate  number of shares of Common
Stock payable in such dividend,  including the  computation of the Market Price.
If any  fractional  interest in a share of Common  Stock  would,  except for the
provisions  of this  sentence,  be  deliverable  upon payment of any dividend in
shares of Common Stock,  the  Corporation,  in lieu of delivering the fractional
share  therefor,  shall pay an amount to the holder  thereof equal to the Market
Price  of such  fractional  interest,  calculated  as set  forth  above  in this
paragraph 1D.
                                       C-2
<PAGE>
   1E. Dividends on Junior Securities. The Corporation shall not declare and pay
any dividends on Junior  Securities  unless all accrued and unpaid  dividends on
the Preferred Stock have been paid in full.

   1F. Certain  Withholding  Provisions.  Notwithstanding any other provision of
Section  1, and  without  limiting  the  generality  of the  Board's  power  and
authority with respect to the  declaration  and payment of dividends,  the Board
shall have and may exercise the power and  authority to provide that the receipt
by each record holder of Preferred  Shares entitled thereto of any dividend paid
by the  Corporation as declared on the issued and outstanding  Preferred  Shares
shall be  subject  to the  condition  (the  "Tax  Payment  Condition")  that the
Corporation  receive,  at or prior to the time for payment of such dividend (the
"Payment Time"), from or on behalf of such record holder, payment in full of the
taxes, fees, duties, assessments, or other amounts, if any (the "Tax"), that the
Corporation  is required  under  applicable law to pay or withhold in connection
with the declaration and payment to such record holder of such dividend.  If the
Tax Payment Condition applies and has been satisfied, or has been duly waived by
the  Corporation,  at or prior to the  Payment  Time,  at the  Payment  Time the
Corporation  shall pay such dividend to such record  holder.  If the Tax Payment
Condition  applies but has not been  satisfied,  and has not been duly waived by
the  Corporation,  at or prior to the  Payment  Time,  at the  Payment  Time the
Corporation  shall pay the  dividend to which such record  holder is entitled by
irrevocably depositing and setting aside such dividend with the Secretary of the
Corporation  as escrow holder (the "Escrow  Holder").  Upon the Escrow  Holder's
receipt, from or on behalf of such record holder, of payment in full of the Tax,
plus any interest,  penalty,  or  additional  amount to be paid or withheld as a
result of the  passage  of time from and after  the  Payment  Time (the  "Escrow
Termination Time"), the Escrow Holder shall release such dividend to such record
holder and shall  release  such Tax, and such  additional  amount if any, to the
Corporation.  If such  dividend  is paid in shares  of  Common  Stock and is not
received  at or prior to the  Payment  Time by the  record  holder of  Preferred
Shares entitled to payment thereof,  then  (notwithstanding any provision hereof
to the contrary)  until the Escrow  Termination  Time (and only until such time,
whether or not the dividend has been released by the Escrow Holder), such record
holder  shall  not be  entitled  to vote such  shares  of  Common  Stock for any
purpose,  to receive payment of dividends or other  distributions on such shares
of Common  Stock,  or to exercise any other rights or  privileges  in respect of
such shares of Common  Stock,  and the Escrow Holder shall have no right to vote
such shares of Common  Stock or to  exercise  any other  right or  privilege  in
respect  thereof  (whether in  accordance  with the wishes or directions of such
record  holder or  otherwise),  but the Escrow  Holder shall receive and hold in
escrow until the Escrow  Termination  Time  together  with such shares of Common
Stock any dividends  paid or other  distributions  made on such shares of Common
Stock and at the Escrow  Termination  Time shall release such  dividends paid or
other distributions made on such shares of Common Stock, if any, along with such
shares of Common Stock.

   Section 2. Liquidation.

   Subject to the  provisions  of Section 2 of each of the Series A  Certificate
and the Series B  Certificate:  upon any  Liquidation,  each holder of Preferred
Stock shall be entitled to be paid,  before any  distribution or payment is made
upon any Junior  Securities,  an amount in cash equal to the  greater of (a) the
aggregate  Liquidation  Value  (plus an amount  equal to all  accrued and unpaid
dividends)  of all  shares of  Preferred  Stock  held by such  holder or (b) the
amount  which would be  distributed  with  respect to the shares of Common Stock
(including  fractional  shares for purposes of this calculation) into which such
shares  of  Preferred  Stock  are  convertible   (assuming   conversion  of  all
outstanding  Preferred  Stock)  immediately  prior to the  record  date for such
distribution (or, if there is no such record date, then the date as of which the
holders of Common Stock entitled to such  distribution are determined),  and the
holders of Preferred Stock shall not be entitled to any further payment;  and if
upon any such Liquidation the  Corporation's  assets to be distributed among the
holders  of the  Preferred  Stock are  insufficient  to permit  payment  to such
holders of the  aggregate  amount which they are  entitled to be paid,  then the
entire assets to be distributed shall be distributed  ratably among such holders
based  upon the  aggregate  Liquidation  Value  (plus  all  accrued  and  unpaid
dividends)  of the  Preferred  Shares  held by each such  holder.  Prior to such
Liquidation,  the Corporation shall (to the extent permitted by law) declare for
payment all accrued and unpaid  dividends  with respect to the Preferred  Stock,
which  dividends  shall be payable in cash  notwithstanding  the  provisions  of
paragraph  1D.  (Payment of the greater of the amounts  specified in clauses (a)
and (b) of this Section 2 in respect of such Preferred Shares shall constitute
                                       C-3
<PAGE>
payment of such declared  dividends.) The Corporation  shall mail written notice
of such  Liquidation,  not less than 60 days prior to the  payment  date  stated
therein, to each record holder of Preferred Stock.

   Section 3. Redemptions.

   3A.  Redemption at the Maturity  Date.  At the Maturity Date the  Corporation
shall redeem all of the Preferred  Shares then  outstanding for a price equal to
the Redemption  Price.  The Corporation  shall pay the Redemption  Price for the
Preferred  Shares within thirty (30) days after the Maturity Date (or such later
date upon which the certificates evidencing the Preferred Shares are surrendered
to the Corporation).

   3B.  Redemption  at the  Option  of the  Corporation.  At any time  after the
Initial   Redemption  Date,  or,  if  prior  to  the  Initial  Redemption  Date,
immediately  prior to the consummation of any  consolidation,  merger or sale in
which the successor  entity or purchasing  entity is other than the Corporation,
to the extent that it has funds legally sufficient therefor, the Corporation may
redeem all or, subject to the last sentence of this paragraph,  a portion of the
Preferred  Shares  then  outstanding  for the  Redemption  Price.  The number of
Preferred Shares to be redeemed from each holder thereof in a partial redemption
pursuant to this paragraph 3B shall be the number of Preferred Shares determined
by  multiplying  the  total  number of  Preferred  Shares  to be  redeemed  by a
fraction,  the  numerator  of  which  shall  be the  total  Redemption  Price of
Preferred  Shares then held by such holder and the denominator of which shall be
the aggregate Redemption Price of Preferred Shares then outstanding.

   3C. Redemption Payment. For each Preferred Share which is to be redeemed, the
Corporation shall be obligated to pay the Redemption Price to the holder thereof
on the  Redemption  Date or such later date upon which  occurs the  surrender by
such  holder  at  the   Corporation's   principal   office  of  the  certificate
representing such Preferred Share.  Subject to the provisions of paragraph 4C of
the Series A Certificate  and paragraph 4C of the Series B  Certificate,  if the
funds of the  Corporation  legally  available for payment of the cash portion of
the Redemption Price of Preferred Shares on any Redemption Date are insufficient
to pay the  cash  portion  of the  Redemption  Price  for the  total  number  of
Preferred  Shares to be  redeemed  on such date,  those  funds which are legally
available shall be used to redeem the maximum  possible number of such Preferred
Shares  ratably among the holders of the Preferred  Shares to be redeemed  based
upon the aggregate  Redemption  Price of the Preferred  Shares held by each such
holder and the  remaining  Preferred  Shares called for  redemption  will remain
outstanding; and at any time thereafter when additional funds of the Corporation
are legally available for the redemption of Preferred  Shares,  such funds shall
immediately  be used to redeem the  balance of the  Preferred  Shares  which the
Corporation  has become  obligated to redeem on any Redemption Date but which it
has not redeemed.  Payment of the Redemption  Price in respect of such Preferred
Shares shall  extinguish  all rights to dividends that are accrued and unpaid as
of the Redemption  Date with respect to the Preferred  Shares which are redeemed
on such Redemption Date.

   3D. Notice of Redemption.  The Corporation  shall mail written notice of each
redemption of any Preferred  Stock to each record holder of Preferred  Stock not
more than 60 nor less than 30 days prior to the date on which such redemption is
to be made specifying (a) the number of shares of Preferred Stock to be redeemed
by the Corporation and (b) the Redemption  Date. Upon mailing any such notice of
redemption, the Corporation shall become obligated to redeem the total number of
Preferred  Shares  specified in such notice at the time of redemption  specified
therein  and upon the  surrender  on or  before  such  time of the  certificates
representing  such Preferred  Shares. If one or more holders of Preferred Shares
being  redeemed  shall fail to  surrender  the  certificates  representing  such
Preferred  Shares  by  the  Redemption  Date,  the  Corporation  shall  pay  the
Redemption Price by irrevocably  depositing or setting aside the required amount
to be paid promptly  upon  surrender of such  certificates.  Such deposit or set
aside shall be deemed payment of the Redemption  Price to the holder for whom it
is  deposited  or set aside.  In case fewer than the total  number of  Preferred
Shares   represented  by  any  certificate  are  redeemed,   a  new  certificate
representing  the number of unredeemed  Preferred  Shares shall be issued to the
holder  thereof  without cost to such holder  within three  Business  Days after
surrender of the certificate representing the redeemed Preferred Shares.
                                       C-4
<PAGE>
   3E.  Dividends after  Redemption Date. No Preferred Share that is redeemed is
entitled to any dividends  accruing after the Redemption Date. On the Redemption
Date of any Preferred  Share,  all rights of the holder of such Preferred  Share
shall  cease,  and  such  Preferred  Share  shall  be  deemed  to be  no  longer
outstanding.

   3F. Redeemed or Otherwise  Acquired  Preferred  Shares.  Any Preferred Shares
which are redeemed, converted or otherwise acquired by the Corporation thereupon
shall be retired.  All such shares shall upon their retirement become authorized
but  unissued  shares  of  preferred  stock  of the  Corporation  and may not be
reissued  as  Preferred  Stock but may be  reissued  as part of a new  series of
preferred  stock to be  created by  resolution  or  resolutions  of the board of
directors,  subject to the conditions or  restrictions  on issuance set forth in
the certificate of incorporation of the Corporation.

   Section 4. Voting Rights.

   The  holders  of the  Preferred  Stock  shall be  entitled  to  notice of all
stockholders meetings in accordance with the Corporation's bylaws, and except as
otherwise  required by law, the holders of the Preferred Stock shall be entitled
to vote on all matters  submitted to the  stockholders  for a vote together with
the holders of the Common  Stock  voting  together  as a single  class with each
share of Common Stock entitled to one vote per share,  and each Preferred  Share
(including  fractional  shares)  entitled  to one vote for each  whole  share of
Common Stock that would be issuable upon  conversion of such Preferred  Share at
the time the vote is taken.

   Section 5. Conversion.

   5A. Conversion Procedure.

           (i) At any time and from time to time after the issuance thereof, any
       holder of Preferred Stock may convert all or any of the Preferred  Shares
       (including any fraction of a Preferred  Share) held by such holder into a
       number of shares of Common  Stock  equal to the sum of: (a) the number of
       shares of Common Stock  computed by  multiplying  the number of Preferred
       Shares to be converted by the Liquidation Value of a Preferred Share, and
       dividing the result by the Conversion Price then in effect,  plus (b) the
       number of shares of Common Stock that would be payable if all accrued but
       unpaid  dividends  were declared and paid on the  Preferred  Shares to be
       converted. For purposes of determining the amount of dividends payable or
       that would be payable with respect to a conversion  under  Section 5, the
       date  for  determining  the  Market  Price  shall  be  the  Business  Day
       immediately preceding the date on which conversion is deemed to have been
       effected.

           (ii) Each  conversion of Preferred Stock shall be deemed to have been
       effected as of the close of business on the date on which the certificate
       or certificates  representing  the Preferred  Shares to be converted have
       been  surrendered at the principal  office of the  Corporation,  together
       with  written  notice of the holder's  desire to convert  such  Preferred
       Shares. At such time as such conversion has been effected,  the rights of
       the holder of such Preferred  Shares as such holder shall cease,  and the
       Person or Persons in whose name or names any  certificate or certificates
       for shares of Common Stock are to be issued upon such conversion shall be
       deemed to have  become  the  holder or holders of record of the shares of
       Common Stock represented  thereby,  which Common Stock shall be deemed to
       have  been  issued  as of such  time.  Issuance  of  Common  Stock by the
       Corporation  to effect  any  conversion  shall  extinguish  all rights to
       dividends that are accrued and unpaid as of the date on which  conversion
       is to be made  with  respect  to the  Preferred  Shares  which  are to be
       converted on such date.

           (iii)  The  conversion  rights  of any  Preferred  Share  subject  to
       redemption  hereunder  shall  terminate on the  Redemption  Date for such
       Preferred  Share unless the  Corporation  has failed to pay to the holder
       thereof the Redemption Price thereof.

           (iv)  Notwithstanding  any other provision hereof, if a conversion of
       any Preferred  Shares is to be made in connection  with a Public Offering
       or prior to a  redemption,  such  conversion  may, at the election of the
       holder of such Preferred  Shares, be conditioned upon the consummation of
       the Public Offering or the redemption  occurring on or before a specified
       date, in which case
                                       C-5
<PAGE>
       such   conversion   shall  not  be  deemed  to  be  effective  until  the
       consummation of the Public Offering or unless the redemption occurs on or
       before the specified date.

           (v) As soon as possible  after a conversion has been effected (but in
       any event  within three  Business  Days in the case of  subparagraph  (a)
       below), the Corporation shall deliver to the converting holder:

       (a) a certificate or  certificates  representing  the number of shares of
   Common Stock issuable by reason of such  conversion in such name or names and
   such denomination or denominations as the converting holder has specified;

       (b) payment of the amount  payable under  subparagraph  (viii) below with
   respect to such conversion; and

       (c)  a  certificate   representing   any  Preferred   Shares  which  were
   represented by the certificate or  certificates  delivered to the Corporation
   in connection with such conversion but which were not converted.

           (vi) The  issuance of  certificates  for shares of Common  Stock upon
       conversion of Preferred Stock shall be made without charge to the holders
       of such Preferred  Stock for any issuance tax in respect thereof or other
       cost incurred by the  Corporation in connection  with such conversion and
       the related issuance of shares of Common Stock.

           (vii) The Corporation  shall not close its books against the transfer
       of Preferred  Stock or of Common Stock issued or issuable upon conversion
       of  Preferred  Stock in any  manner  which  interferes  with  the  timely
       conversion of Preferred Stock. The Corporation shall assist and cooperate
       (but the Corporation shall not be required to expend substantial  efforts
       or  funds)  with any  holder of  Preferred  Shares  required  to make any
       governmental  filings or obtain any governmental  approval prior to or in
       connection with any conversion of Preferred Shares hereunder  (including,
       without  limitation,  making  any  filings  required  to be  made  by the
       Corporation).

           (viii) If any  fractional  interest in a share of Common Stock would,
       except for the provisions of this  subparagraph,  be deliverable upon any
       conversion of shares of a holder's  Preferred Stock, the Corporation,  in
       lieu of delivering the fractional share therefor,  shall pay an amount to
       the holder thereof equal to the Market Price of such fractional  interest
       as of the Business Day immediately preceding the date of conversion.

           (ix) The  Corporation  shall at all times reserve and keep  available
       out of its authorized but unissued shares of Common Stock, solely for the
       purpose of issuance upon the conversion of the Preferred  Stock, not less
       than the number of shares of Common Stock issuable upon the conversion of
       all outstanding  Preferred Stock which may then be exercised.  All shares
       of Common Stock which are so issuable  shall,  when  issued,  be duly and
       validly  issued,  fully paid and  nonassessable  and free from all taxes,
       liens and charges.  The Corporation shall take all such actions as may be
       necessary to ensure that all such shares of Common Stock may be so issued
       without violation of any applicable law or governmental regulation or any
       requirements  of any domestic  securities  exchange  upon which shares of
       Common Stock may be listed (except for official  notice of issuance which
       shall  be  immediately  delivered  by  the  Corporation  upon  each  such
       issuance).

   5B.  Subdivision or Combination  of Common Stock.  If the  Corporation at any
time  subdivides  (by any  stock  split,  stock  dividend,  recapitalization  or
otherwise) the outstanding  shares of one or more classes of Common Stock into a
greater number of shares, the Conversion Price (and the Trigger Price and Series
A/B Dilution Price) in effect  immediately  prior to such  subdivision  shall be
proportionately reduced, and if the Corporation at any time combines (by reverse
stock  split or  otherwise)  the  outstanding  shares of one or more  classes of
Common  Stock into a smaller  number of shares,  the  Conversion  Price (and the
Trigger Price and Series A/B Dilution Price) in effect immediately prior to such
combination shall be proportionately increased.
                                       C-6
<PAGE>
   5C.  Reorganization,  Reclassification,  Consolidation,  Merger  or Sale.  In
connection  with any  Reorganization,  (i) the holders of Preferred  Stock shall
thereafter  have the right to acquire and receive,  in lieu of or in addition to
(as  the  case  may be) the  shares  of  Common  Stock  immediately  theretofore
acquirable and receivable upon the conversion of such holder's  Preferred Stock,
such shares of stock,  securities,  cash or other assets (or, if not practicably
attainable,  the  reasonable  equivalent  thereof)  as such  holder  would  have
received in connection with such Reorganization if such holder had converted its
Preferred Stock immediately prior to such Reorganization, and (ii) dividends and
amounts in  respect of  dividends  hereunder  payable in shares of Common  Stock
prior to such  Reorganization  shall be payable, in lieu of each share of Common
Stock, in such shares of stock, securities,  cash or other assets (or reasonable
equivalent  thereof)  as the  holder of one share of Common  Stock  received  in
connection  with such  Reorganization.  The Corporation  shall make  appropriate
provisions  to  ensure  that  the  requirements  of the  previous  sentence  are
effected.  In each such  case,  the  Corporation  shall  also  make  appropriate
provisions to ensure that the  provisions of this Section 5 and Sections 6 and 7
shall thereafter be applicable to the Preferred Stock.

   5D. Notices.

           (i)  Immediately  upon any  adjustment of the Conversion  Price,  the
       Corporation shall give written notice thereof to all holders of Preferred
       Stock,  setting forth in reasonable detail and certifying the calculation
       of such adjustment.

           (ii) The  Corporation  shall give  written  notice to all  holders of
       Preferred  Stock  at  least  20  days  prior  to the  date on  which  the
       Corporation  closes its books or fixes a record date (a) with  respect to
       any dividend or distribution  upon Common Stock,  (b) with respect to any
       pro  rata  subscription  offer  to  holders  of  Common  Stock or (c) for
       determining   rights  to  vote  with  respect  to  any   Liquidation   or
       Reorganization.

   5E. Mandatory  Conversion.  The Corporation may require, by written notice to
all  holders  of  Preferred  Stock,  the  conversion  of all of the  outstanding
Preferred Stock into a number of shares of Common Stock equal to the sum of: (a)
the  number of shares of Common  Stock  computed  by  multiplying  the number of
Preferred Shares to be converted by the Liquidation  Value of a Preferred Share,
and dividing the result by the applicable  Conversion Price then in effect, plus
(b) the number of shares of Common  Stock  that would be payable if all  accrued
but  unpaid  dividends  were  declared  and paid on the  Preferred  Shares to be
converted;  provided  that the  Closing  Price  of the  Common  Stock  (adjusted
proportionately  for stock dividends,  stock splits,  combinations,  and similar
changes in the Common Stock occurring after the Closing) on at least twenty (20)
of the thirty (30) latest trading days  preceding the date of the  Corporation's
notice  has  been  greater  than  or  equal  to  the  Conversion  Price.  If the
Corporation  shall  require the  conversion  of the  Preferred  Stock under this
Section 5E within two years from the Initial Date of  Issuance,  then the number
of shares of Common Stock into which the shares of Preferred Stock are converted
shall be increased by the number of shares of Common Stock that would be payable
if the Corporation were immediately to declare and pay all dividends that in the
absence of conversion  would have accrued on such shares of Preferred Stock over
the six-month  period  immediately  following the date of conversion;  provided,
however,  that the total  dividends and amounts in respect of dividends  paid on
the Preferred Stock after the Date of Issuance thereof, including any additional
amounts in respect of dividends paid as a result of a required  conversion under
this Section 5E, shall not be less than the amount of dividends  that would have
accrued  on all  outstanding  shares  of the  Preferred  Stock for one full year
following the Initial Date of Issuance.

   Any conversion of shares of Preferred  Stock under this Paragraph 5E shall be
effected and be deemed to have been  effected as of the close of business on the
date on which the Corporation  provides written notice of such conversion to the
holders of such shares of Preferred Stock (the "Mandatory Conversion Time"), and
as of the Mandatory  Conversion Time, the rights of the holders of the converted
shares of Preferred  Stock, as such,  shall cease and terminate,  such converted
shares of Preferred  Stock shall be retired in accordance with paragraph 3F, the
shares of Common Stock into which such shares of Preferred  Stock are  converted
shall be  issued  and  deemed  to have  been  issued,  the  certificate(s)  that
theretofore represented shares of Preferred Stock thereafter shall represent the
number of shares  of Common  Stock  into  which the  shares of  Preferred  Stock
theretofore represented thereby shall
                                       C-7
<PAGE>
have been converted, and the holder of any such certificate,  upon the surrender
thereof to the Corporation,  shall be entitled to receive from the Corporation a
new certificate representing the number of shares of Common Stock into which the
shares of  Preferred  Stock  theretofore  represented  thereby  shall  have been
converted.

   5F. Effect on Conversion Price of Certain Events.

           (i) General.  In order to prevent  dilution of the conversion  rights
       granted  under this Section 5, the  Conversion  Price shall be subject to
       adjustment from time to time pursuant to this paragraph 5F.

           (ii) Adjustment of Conversion  Price. If and whenever on or after the
       Date of Issuance the  Corporation  issues or sells, or in accordance with
       this  paragraph  5F is deemed to have  issued or sold,  other  than in an
       Excluded  Issuance,  any share of Common  Stock for a  consideration  per
       share less than the  Trigger  Price in effect  immediately  prior to such
       time (a "Dilutive Event"),  then forthwith upon such issue or sale in the
       Dilutive Event the Conversion  Price shall be reduced by multiplying  the
       Conversion  Price in effect  immediately  before the Dilutive  Event by a
       fraction,  the numerator of which is the number of shares of Common Stock
       that  are  Outstanding  on  an  As-Converted  Basis  (as  defined  below)
       immediately before the Dilutive Event plus the number of shares of Common
       Stock that could be  purchased  at the  Trigger  Price at the time of the
       Dilutive Event for the aggregate  consideration  paid or payable upon the
       sale  or  issuance  of  Common  Stock  in the  Dilutive  Event,  and  the
       denominator  of which is the  number of shares of Common  Stock  that are
       Outstanding  on an  As-Converted  Basis  immediately  before the Dilutive
       Event plus the number of shares that are acquired or to be acquired  upon
       the sale or  issuance  of the Common  Stock in the  Dilutive  Event.  For
       purposes of this paragraph 5F(ii), "Outstanding on an As-Converted Basis"
       immediately  before the  Dilutive  Event  means the sum of (i) all Common
       Stock issued and outstanding  immediately  before the Dilutive Event plus
       (ii) all Common Stock issuable upon the exercise of Options or conversion
       of Convertible  Securities  outstanding  immediately  before the Dilutive
       Event (other than Preferred Stock).

           (iii) Issuance of Rights or Options. If the Corporation in any manner
       grants  any  Options  and the price per share for which  shares of Common
       Stock are issuable  upon the exercise of any such Option is less than the
       Trigger Price in effect  immediately prior to the time of the granting of
       such  Option,  then such  shares of Common  Stock shall be deemed to have
       been issued and sold by the  Corporation  at the time of the  granting of
       such Options for such price per share and the  Conversion  Price shall be
       adjusted in accordance with paragraph  5F(ii) above. For purposes of this
       paragraph,  the "price per  share" for which  shares of Common  Stock are
       issuable upon the exercise of any Option shall be equal to the sum of the
       amounts  of  consideration   (if  any)  received  or  receivable  by  the
       Corporation with respect to such shares of Common Stock upon the granting
       of the Option and upon exercise of the Option.  No further  adjustment of
       the  Conversion  Price shall be made upon the actual issue of such Common
       Stock upon the exercise of such Options.

           (iv) Issuance of Convertible  Securities.  If the  Corporation in any
       manner issues or sells any  Convertible  Security (or Options to purchase
       any  Convertible  Security)  and the price per share for shares of Common
       Stock that are issuable upon conversion or exchange  thereof is less than
       the Trigger Price in effect  immediately  prior to the time of such issue
       or sale (or the  granting  of such  Option),  then such  shares of Common
       Stock shall be deemed to have been issued and sold by the  Corporation at
       the time of the issuance or sale of such  Convertible  Securities (or the
       granting  of such  Option)  for such  price per share and the  Conversion
       Price shall be adjusted in accordance  with paragraph  5F(ii) above.  For
       the purposes of this paragraph, the "price per share" for which shares of
       Common Stock are issuable upon  conversion or exchange of any Convertible
       Security (or exercise of any Option  therefor)  shall be equal to the sum
       of the amounts of  consideration  (if any)  received or receivable by the
       Corporation  upon  the  issuance  of the  Convertible  Security  (or such
       Option) and upon the conversion or exchange of such Convertible  Security
       (or exercise of such Option). No further adjustment of the Conversion
                                       C-8
<PAGE>
Price shall be made upon the actual issue of such Common  Stock upon  conversion
or exchange of any Convertible  Security,  and if any such issue or sale of such
Convertible  Security is made upon exercise of any Options for which adjustments
of the Conversion  Price had been or are to be made pursuant to other provisions
of this Section 5, no further  adjustment of the Conversion  Price shall be made
by reason of such issue or sale.

           (v) Change in Option Price or Conversion  Rate. If the purchase price
       provided for in any Option, the additional consideration (if any) payable
       upon the issue,  conversion or exchange of any Convertible  Security,  or
       the  rate at  which  any  Convertible  Security  is  convertible  into or
       exchangeable  for Common Stock change at any time, any  Conversion  Price
       previously  adjusted with respect to such Option or Convertible  Security
       and in  effect  at the time of such  change  shall be  readjusted  to the
       Conversion  Price  which  would have been in effect at such time had such
       Option or  Convertible  Security  originally  provided  for such  changed
       purchase price,  additional  consideration or changed conversion rate, as
       the case may be, at the time initially granted, issued or sold.

           (vi)  Treatment  of  Expired  Options  and  Unexercised   Convertible
       Securities.  Upon the expiration of any Option or the  termination of any
       right to  convert  or  exchange  any  Convertible  Security  without  the
       exercise of any such Option or right, any Conversion Price then in effect
       hereunder shall be adjusted to the Conversion Price which would have been
       in effect at the time of such  expiration or termination  had such Option
       or Convertible Security,  to the extent outstanding  immediately prior to
       such expiration or termination, never been issued.

           (vii)  Calculation of  Consideration  Received.  If any Common Stock,
       Option or  Convertible  Security is issued or sold or deemed to have been
       issued or sold for cash,  the  consideration  received  therefor shall be
       deemed to be the amount received by the Corporation therefor. In case any
       Common Stock, Options or Convertible  Securities are issued or sold for a
       consideration other than cash, the amount of the consideration other than
       cash  received  by the  Corporation  shall  be the  fair  value  of  such
       consideration, except where such consideration consists of securities, in
       which case the amount of consideration  received by the Corporation shall
       be the  Market  Price  thereof as of the date of  receipt.  If any Common
       Stock,  Option or  Convertible  Security  is issued to the  owners of the
       non-surviving   entity  in  connection  with  any  merger  in  which  the
       Corporation  is the surviving  corporation,  the amount of  consideration
       therefor  shall be deemed  to be the fair  value of such  portion  of the
       assets and business of the  non-surviving  entity as is  attributable  to
       such Common Stock, Options or Convertible Securities, as the case may be.
       The fair value of any consideration  other than cash and securities shall
       be as  determined  in  good  faith  by  the  Board  of  Directors  of the
       Corporation.

           (viii)  Integrated  Transactions.  In case any  Option  is  issued in
       connection with the issue or sale of other securities of the Corporation,
       together  comprising  one  integrated  transaction  in which no  specific
       consideration  is  allocated to such Option by the parties  thereto,  the
       Option shall be deemed to have been issued for a consideration of $.01.

           (ix)  Treasury  Shares.   For  purposes  of  calculating  under  this
       paragraph  5F the  number of shares of Common  Stock  outstanding  at any
       given time, the number of shares of Common Stock outstanding at such time
       does  not  include  shares  owned  or held by or for the  account  of the
       Corporation or any subsidiary thereof,  and the disposition of any shares
       so owned or held shall be considered an issue or sale of Common Stock.

           (x) De Minimis  Adjustments.  Notwithstanding any other provisions of
       this  Section  5,  the  Corporation  shall  not be  required  to make any
       adjustment of the Conversion  Price unless such adjustment  would require
       an increase or  decrease of at least one percent  (1%) in the  Conversion
       Price as then in effect.  Any lesser  adjustment shall be carried forward
       and shall be made no later than the time of, and together  with, the next
       subsequent  adjustment which, together with any adjustment or adjustments
       so carried  forward,  shall amount to an increase or decrease of at least
       one percent (1%) of the Conversion Price as then in effect. If any action
       would require  adjustment of the  Conversion  Price pursuant to more than
       one subparagraph of this
                                       C-9
<PAGE>
       paragraph  5F, only one  adjustment  shall be made as  determined in good
       faith by the Board of Directors of the Corporation.

   Section 6. Liquidating Dividends.

   If the  Corporation  declares or pays a Liquidating  Dividend upon the Common
Stock,  then the Corporation  shall pay to the holders of Preferred Stock at the
time of payment thereof the  Liquidating  Dividend which would have been paid to
such holders had such Preferred  Stock been converted  immediately  prior to the
record date fixed for determining the  stockholders  entitled to receive payment
of such  Liquidating  Dividend,  or, if no record date is fixed,  the date as of
which the record  holders of Common Stock  entitled to such  dividends are to be
determined.

   Section 7. Purchase Rights.

   If at any time the  Corporation  grants,  issues or sells any Purchase Rights
pro rata to the record holders of any class of Common Stock, then each holder of
Preferred Stock shall be entitled to acquire,  upon the terms applicable to such
Purchase  Rights,  the  aggregate  Purchase  Rights which such holder would have
acquired if such holder had held the number of shares of Common Stock acquirable
upon conversion of such holder's Preferred Shares immediately before the date on
which a record is taken for the grant, issuance or sale of such Purchase Rights,
or, if no such  record is taken,  the date as of which  the  record  holders  of
Common Stock are to be determined for the grant,  issue or sale of such Purchase
Rights.

   Section 8. Registration of Transfer.

   The  Corporation  shall  keep at its  principal  office  a  register  for the
registration of issuances and transfers of Preferred  Stock.  Upon the surrender
of any certificate  representing  Preferred Stock at such place, the Corporation
shall,  at the  request of the record  holder of such  certificate,  execute and
deliver (at the  Corporation's  expense) a new  certificate or  certificates  in
exchange  therefor  representing in the aggregate the number of Preferred Shares
represented by the surrendered  certificate.  Each such new certificate shall be
registered in such name and shall  represent such number of Preferred  Shares as
is  requested  by the  holder  of  the  surrendered  certificate  and  shall  be
substantially  identical in form to the surrendered  certificate,  and dividends
shall accrue on the Preferred Stock represented by such new certificate from the
date to which dividends have been fully paid on such Preferred Stock represented
by the surrendered certificate.

   Section 9. Replacement.

   Upon  receipt of evidence  reasonably  satisfactory  to the  Corporation  (an
affidavit of the registered  holder shall be  satisfactory) of the ownership and
the  loss,  theft,  destruction  or  mutilation  of any  certificate  evidencing
Preferred Shares,  and in the case of any such loss, theft or destruction,  upon
receipt of indemnity reasonably  satisfactory to the Corporation  (provided that
if the holder is a financial  institution or other institutional  investor,  its
own agreement  shall be  satisfactory),  or, in the case of any such  mutilation
upon  surrender  of such  certificate,  the  Corporation  shall (at its expense)
execute and deliver in lieu of such  certificate a new  certificate of like kind
representing  the number of Preferred Shares  represented by such lost,  stolen,
destroyed  or  mutilated  certificate  and dated the date of such lost,  stolen,
destroyed or mutilated certificate,  and dividends shall accrue on the Preferred
Stock  represented by such new certificate from the date to which dividends have
been fully  paid on the  Preferred  Shares  represented  by such  lost,  stolen,
destroyed or mutilated certificate.

   Section 10. Definitions.

   "Bond Offering" means an underwritten  offering of notes or debentures of the
Corporation to the public, with or without Options, primarily for the purpose of
refinancing the indebtedness of International  Private Satellite Partners,  L.P.
("Orion Atlantic") outstanding under the Credit Agreement dated December 6, 1991
among Orion  Atlantic,  the Banks named  therein  and The Chase  Manhattan  Bank
(National Association), as Agent.

   "Business  Day" means a day on which banks are generally open for business in
New York City.

   "Closing" means ______ ___, 1997.
                                      C-10
<PAGE>
   "Closing  Price" of each share of Common  Stock or other  security  means the
composite  closing price of the sales of the Common Stock or such other security
on all securities exchanges on which such security may at the time be listed (as
reported in The Wall Street Journal),  or, if there has been no sale on any such
exchange on any day,  the average of the highest bid and lowest  asked prices of
the Common Stock or such other security on all such exchanges at the end of such
day, or, if such security is not so listed, the closing price (or last price, if
applicable)  of sales of the Common  Stock or such other  security in the Nasdaq
National Market (as reported in The Wall Street Journal) on such day, or if such
security   is  not  quoted  in  the  Nasdaq   National   Market  but  is  traded
over-the-counter, the average of the highest bid and lowest asked prices on such
day in the over-the-counter  market as reported by the National Quotation Bureau
Incorporated, or any similar successor organization.

   "Common Stock" means, collectively, the Corporation's common stock, par value
$0.01 per share, and any capital stock of any class of the Corporation hereafter
authorized  which is not limited to a fixed sum or  percentage  of par or stated
value in  respect  to the  rights  of the  holders  thereof  to  participate  in
dividends  or in  the  distribution  of  assets  upon  any  Liquidation  of  the
Corporation;  and if there is a change such that the  securities  issuable  upon
conversion  of the  Preferred  Stock  are  issued by an  entity  other  than the
Corporation  or there is a change in the class of securities  so issuable,  then
the term  "Common  Stock"  shall mean one share of the  security  issuable  upon
conversion  of the Preferred  Stock if such  security is issuable in shares,  or
shall mean the smallest unit in which such security is issuable if such security
is not issuable in shares.

   "Conversion  Price" shall mean,  with  respect to any Series C Share,  $17.50
(subject to adjustment as provided in Section 5 for events  occurring  after its
Date of Issuance).

   "Convertible   Securities"  means  any  stock  or  other  securities  of  the
Corporation convertible into or exchangeable for Common Stock.

   "Convertible   Subordinated   Debenture   Offering"   means  an  offering  of
convertible  subordinated  debentures of the  Corporation  to the public,  which
debentures would be convertible into Common Stock.

   "Corporation" means Orion Newco Services, Inc., a Delaware corporation.

   "Date of Issuance,"  with respect to any Preferred  Share,  means the date on
which the Corporation  initially issues such Preferred Share,  regardless of the
number of times  transfer of such  Preferred  Share is made on the stock records
maintained  by  or  for  the   Corporation  and  regardless  of  the  number  of
certificates which may be issued to evidence such Preferred Share.

   "Dividend  Reference  Date"  mean  [___________]  of  each  year,  commencing
__________,  1997,  and  each of the  following:  (i)  the  date  on  which  the
Liquidation  Value of such Preferred  Share is paid, (ii) the date on which such
Preferred  Share is converted into shares of Common Stock  hereunder,  and (iii)
the Maturity Date.

   "Excluded  Issuance" means the issue or sale of (i) shares of Common Stock in
respect  of  any  transaction  described  in  paragraph  5B  (including  without
limitation any stock split, stock dividend or recapitalization),  (ii) shares of
Common  Stock  by the  Corporation  pursuant  to the  exercise  of  Options  and
Convertible Securities outstanding  immediately prior to the Closing at exercise
prices  that are  greater  than or equal to the  respective  exercise  prices in
effect as of Closing (as adjusted  pursuant to the terms of such  securities  to
give effect to stock  dividends  or stock splits or a  combination  of shares in
connection   with   a   recapitalization,   merger,   consolidation   or   other
reorganization occurring after the Closing), (iii) up to an aggregate of 150,000
shares of Common  Stock by the  Corporation  for any  purpose,  (iv)  Options to
acquire Common Stock by the Corporation  pursuant to a resolution of, or a stock
option  plan  approved  by a  resolution  of,  the  Board  of  Directors  of the
Corporation  (or  the  compensation  committee  thereof)  to  the  Corporation's
employees  or  directors,  (v) shares of Common  Stock,  Options or  Convertible
Securities  (or shares of Common  Stock  pursuant to the exercise of Options and
Convertible  Securities)  as part of or in connection  with a Bond Offering or a
Convertible Subordinated Debenture Offering.

   "Initial  Date of Issuance"  means the Date of Issuance of the first share of
Preferred Stock to be issued.
                                      C-11
<PAGE>
   "Initial  Redemption  Date" means the earlier of (i) the close of business on
______,  1999.  [two years from the Date of Issuance] or (ii) the effective date
of a Reorganization.

   "Junior  Securities"  means Common Stock and any other capital stock or other
equity  securities  issued by the  Corporation,  whether  currently  existing or
hereafter  authorized  or issued  (other  than  Series A  Preferred  or Series B
Preferred  or any other  series of  preferred  stock of the  Corporation  issued
pursuant to an option  granted to purchasers of Series A Preferred in connection
with the initial issuances of Series A Preferred by the Corporation).

   "Liquidation"  means  the  liquidation,  dissolution  or  winding  up of  the
Corporation;  provided, however, that neither the consolidation or merger of the
Corporation into or with any other entity or entities,  nor the sale or transfer
by the  Corporation  of all or any part of its assets,  nor the reduction of the
capital  stock  of  the  Corporation,  shall  be  deemed  to  be a  liquidation,
dissolution or winding up of the Corporation.

   "Liquidating  Dividend"  means a  dividend  upon  the  Common  Stock  payable
otherwise than in cash out of legally  available funds (determined in accordance
with generally accepted accounting principles,  consistently applied) except for
a stock dividend payable in shares of Common Stock.

   "Liquidation Value" of any Preferred Share shall be equal to $1,000.

   "Market  Price" of each share of Common Stock or other security  means,  with
respect to a specified  date, the Closing Price of such share or other security,
averaged over a period of the 20  consecutive  Business Days prior to such date.
If during this period such  security is not listed on any  securities  exchange,
quoted in the Nasdaq National Market, or quoted in the over-the-counter  market,
the  Market  Price  will be the fair  value of such  shares of  Common  Stock or
security  determined by agreement  between the  Corporation and the holders of a
majority of the  outstanding  Preferred  Shares.  If such  parties are unable to
reach  agreement  within a  reasonable  period of time,  the fair  value of such
security shall be determined by an independent  appraiser experienced in valuing
such type of  consideration  jointly selected by the Corporation and the holders
of a majority of the outstanding  Preferred  Shares.  The  determination of such
appraiser shall be final and binding upon the parties, and the fees and expenses
of such appraiser shall be borne by the Corporation.

   "Maturity  Date" means the close of business  on ______ __,  2022.  [25 years
from the Date of Issuance]

   "Options"  means any  options,  warrants  or rights  to  subscribe  for or to
purchase Common Stock or any Convertible Securities.

   "Person" means an individual, a partnership, a corporation, an association, a
joint stock company, a limited liability  company, a trust, a joint venture,  an
unincorporated organization and a governmental entity or any department,  agency
or political subdivision thereof.

   "Preferred Share" means a share of Series C Preferred.

   "Preferred Stock" means the Series C Preferred.

   "Prior Dividend Date" means,  with respect to a Dividend  Reference Date, the
previous  Dividend  Reference Date following which dividends were paid on shares
of  Preferred  Stock  hereunder  (or,  if  there  is no such  previous  Dividend
Reference Date, the Date of Issuance).

   "Public  Offering"  means  any  offering  by the  Corporation  of its  equity
securities to the public pursuant to an effective  registration  statement under
the Securities Act of 1933, as then in effect, or any comparable statement under
any similar  federal  statute then in force;  provided,  that "Public  Offering"
shall not include an offering made in connection with a business  acquisition or
combination or an employee benefit plan.

   "Purchase  Rights"  means any Options,  Convertible  Securities  or rights to
purchase stock, warrants, securities or other property.

   "Redemption Date" means the date on which the Redemption Price of a Preferred
Share is paid to the holder thereof.
                                      C-12
<PAGE>
   "Redemption  Price"  means the  Liquidation  Value of such  Preferred  Share,
payable  in cash,  plus an amount  equal to all  accrued  and  unpaid  dividends
thereon, payable in shares of Common Stock pursuant to paragraph 1D.

   "Reorganization"     means     any     recapitalization,      reorganization,
reclassification, consolidation, merger, sale of all or substantially all of the
Corporation's assets to another Person or other transaction which is effected in
such a manner  that  holders of Common  Stock are  entitled  to receive  (either
directly  or upon  subsequent  liquidation)  stock,  securities  or assets  with
respect to or in exchange for Common Stock.

   "Series A  Certificate"  means the  Certificate of  Designations,  Rights and
Preferences for the Series A Preferred.

   "Series B  Certificate"  means the  Certificate of  Designations,  Rights and
Preferences for the Series B Preferred.

   "Series  A  Preferred"  means  the  Corporation's   Series  A  8%  Cumulative
Redeemable Convertible Preferred Stock, par value $.01 per share.

   "Series  B  Preferred"  means  the  Corporation's   Series  B  8%  Cumulative
Redeemable Convertible Preferred Stock, par value $.01 per share.

   "Series  C  Preferred"  means  the  Corporation's   Series  C  6%  Cumulative
Redeemable Convertible Preferred Stock, par value $.01 per share.

   "Series A/B Dilution Price" means, at any time, the conversion  price for the
Series B Preferred as then in effect under the Series B Certificate.

   "Series A Share" means a share of Series A Preferred.

   "Series B Share" means a share of Series B Preferred.

   "Series C Share" means a share of Series C Preferred.

   "Trigger  Price"  shall  mean,  with  respect to any  Series C Share,  $14.00
(subject to adjustment as provided in Section 5B for events  occurring after its
Date of Issuance).

   Section 11. Amendment and Waiver.

   No  amendment,  modification  or waiver  shall be binding or  effective  with
respect to any provision  hereof without the prior  affirmative  vote or written
consent of the holders of a majority of the Preferred Shares  outstanding at the
time such action is taken; provided, however, that without the prior affirmative
vote or written consent of each holder individually  holding at least 51% of the
Preferred  Stock then  outstanding,  no such action shall change (i) the rate at
which or the manner in which dividends on the Preferred Stock accrue or the form
of  consideration in which such dividends are payable or the times at which such
dividends  become  payable or the amount  payable on redemption of the Preferred
Stock or the times at which redemption of Preferred Stock is to occur,  (ii) any
Conversion  Price of the  Preferred  Stock or the  number  of shares or class of
stock into which the  Preferred  Stock is  convertible,  (iii) the  priority  of
payment of dividends to the Preferred Stock, (iv) the Liquidation Value, (v) the
voting rights of the  Preferred  Stock,  (vi) the rights of the Preferred  Stock
upon a  reorganization,  (vii) the  provisions  for mandatory  conversion of the
Preferred Stock,  (viii) the rights of holders of the Preferred Stock to acquire
Purchase Rights,  or (ix) the percentage  required to approve any change in this
Section 11.

   Section 12. Notices.

   Except as otherwise  expressly  provided  hereunder,  all notices referred to
herein  shall be in writing and shall be delivered  by  registered  or certified
mail,  return receipt requested and postage prepaid,  or by reputable  overnight
courier service, charges prepaid, and shall be deemed to have been given when so
mailed or sent (i) to the Corporation,  at its principal  executive  offices and
(ii) to any  stockholder,  at such  holder's  address as it appears in the stock
records of the Corporation (unless otherwise indicated by any such holder).
                                      C-13
<PAGE>
                                                                    ATTACHMENT D

                                SALOMON BROTHERS

December 10, 1996


Orion Network Systems, Inc.
2440 Research Boulevard
Suite 400
Rockville, MD 20850

Dear Sirs:

   You have requested our opinion,  as investment  bankers,  as to the fairness,
from a financial point of view, to Orion Network Systems, Inc. ("Orion"), of the
consideration  to be paid by Orion in  connection  with the Exchange (as defined
below). Pursuant to a Section 351 Exchange Agreement and Plan of Conversion (the
"Exchange Agreement") with Orion Satellite  Corporation,  a Delaware corporation
that is a wholly owned  subsidiary  of Orion  ("OrionSat")  and the sole general
partner of International  Private Satellite  Partners,  L.P., a Delaware limited
partnership  ("Orion  Atlantic"),  and each of the existing  limited partners of
Orion Atlantic other than Orion (the "Exchanging  Partners"),  Orion has agreed,
among other things, to have Orion Newco Services,  Inc., a newly formed Delaware
corporation  with a certificate  of  incorporation,  bylaws,  capital  structure
(before the issuance of the Newco  Preferred Stock defined below) and management
substantially  identical  in all  material  respects  to those of Orion  ("Orion
Newco"),  issue  121,988  shares  of  Orion  Newco|Als  Series  C 6%  Cumulative
Redeemable Convertible Preferred Stock (the "Newco Preferred Stock") in exchange
for the Exchanging  Partners|Al limited partnership  interests in Orion Atlantic
and other rights relating thereto (the "Exchange").  The Exchange is intended to
qualify as tax-free  under Section 351 of the Internal  Revenue Code of 1986, as
amended.  As a result of the Exchange,  Orion Newco will become the owner of all
the  partnership  interests in Orion Atlantic  (through Orion Newco and Orion as
limited partners and OrionSat as the sole general partner of Orion Atlantic). In
addition,  Orion  Newco  will  acquire  certain  rights  currently  held  by the
Exchanging  Partners,  including rights to receive repayment of various advances
(aggregating  approximately  $37.6  million at September 30, 1996) made to Orion
Atlantic.  The 121,988 shares of Newco  Preferred Stock expected to be issued in
the Exchange will be convertible into  approximately  6.9971 million (assuming a
closing  of the  Exchange  as of January  30,  1997;  the number of shares  will
increase if the closing  occurs  after that date)  shares of common  stock,  par
value $.01 per share, of Orion Newco ("Orion Newco Common Stock").

   We understand that concurrently with, and as a condition to, the consummation
of  the  Exchange,  (i)  Orion  Newco  intends  to  consummate  financings  (the
"Financings") consisting of (a) notes and warrants with expected net proceeds of
approximately  $250  million to refinance  the  indebtedness  of Orion  Atlantic
outstanding  under the existing  Credit  Agreement  dated December 6, 1991 among
Orion  Atlantic,  the banks named  therein and Chase  Manhattan  Bank  (National
Association), as agent (the "Orion 1 Credit Facility"), and to release Orion|Als
and the Exchanging Limited Partners|Al  (including their respective  affiliates)
existing commitments and guarantees supporting the Orion 1 Credit Facility,  (b)
the  issuance  and  sale  of  approximately   $50  million  of  Orion  Newco|Als
convertible subordinated debentures to British Aerospace Public Limited Company,
an affiliate of one of the Exchanging Partners and (c) the execution by Orion or
one of its affiliates of an amendment to the satellite procurement contract with
Matra  Marconi Space U.K.  Limited for the Orion 2 satellite,  which was entered
into in July 1996 and is expected to include an agreement by the manufacturer to
commence  construction of the Orion 2 satellite based upon a $40 million initial
payment,  and (ii) a wholly-owned  subsidiary of Orion Newco will be merged with
and into Orion in a tax-free  reorganization  (the  "Merger").  We have not been
asked to express an opinion,  and we do not express any opinion,  with regard to
the Financings or the Merger.

   In arriving at our  opinion,  we have  reviewed  certain  publicly  available
business and financial  information  relating to Orion, as well as certain other
information,  including financial projections,  provided to us by Orion. We have
discussed the past and current operations and financial condition and prospects
                                       D-1
<PAGE>
of Orion and Orion Atlantic with members of the respective  senior management of
such  entities.  We have  also  considered  such  other  information,  financial
studies,  analyses,  investigations and financial,  economic, market and trading
criteria which we deemed relevant.

   We  have  assumed  and  relied  on  the  accuracy  and  completeness  of  the
information  reviewed  by us for the  purpose  of this  opinion  and we have not
assumed any responsibility  for independent  verification of such information or
for any  independent  evaluation  or  appraisal  of the assets of Orion or Orion
Atlantic.   With  respect  to  Orion|Als   and  Orion   Atlantic|Als   financial
projections,  we have assumed that they have been  reasonably  prepared on bases
reflecting the best currently available estimates and judgments of Orion|Als and
Orion  Atlantic|Als  management,  as the case may be, as to the future financial
performance of such entity, and while we express no opinion with respect to such
forecasts  or the  assumptions  on  which  they are  based,  we have  relied  on
management|Als  assumption that the Financings will occur  concurrently with the
Exchange.

   Our opinion is necessarily  based upon business,  market,  economic and other
conditions as they exist on, and can be evaluated as of, the date of this letter
and does not  address  Orion|Als  underlying  business  decision  to effect  the
Exchange or constitute a  recommendation  to any holder of Orion common stock as
to how such holder should vote with respect to the Merger or the  Exchange.  Our
opinion  as  expressed  below  does not imply any  conclusion  as to the  likely
trading range for the Orion Newco Common Stock following the consummation of the
Exchange,  which may vary depending on, among other factors, changes in interest
rates, dividend rates, market conditions,  general economic conditions and other
factors that generally influence the price of securities.

   We have  acted as  financial  advisor to the Board of  Directors  of Orion in
connection  with the Exchange and will receive a fee for our  services,  part of
which was paid upon execution by Orion of the engagement  agreement with respect
to the  Exchange,  part of which is payable upon the initial  submission of this
opinion  and  the  remainder  of  which  is  payable  upon  consummation  of the
Financings.  In the  ordinary  course of our  business,  we  actively  trade the
securities  of Orion for our own account and for the accounts of customers  and,
accordingly, may at any time hold a long or short position in such securities.

   Based upon and  subject to the  foregoing,  it is our  opinion as  investment
bankers  that,  as of the  date  hereof,  the  consideration  to be  paid in the
Exchange is fair, from a financial point of view, to Orion.

Very truly yours,




SALOMON BROTHERS INC
                                       D-2
<PAGE>

                                   SIGNATURES

   
   Pursuant to the  requirements of the Securities Act of 1933, as amended,  the
Registrant has duly caused this Amendment No. 1 to Registration  Statement to be
signed on its behalf by the undersigned,  thereunto duly authorized, in the City
of Rockville, State of Maryland, on the 14th day of January, 1997.

                                   ORION NEWCO SERVICES, INC.


                                   By: /s/ David J. Frear
                                      ------------------------------------------
                                      David J. Frear
                                      Vice President

   Pursuant  to the  requirements  of the  Securities  Act of 1933,  as amended,
Amendment  No. 1 to this  Registration  Statement  has been signed  below by the
following persons in the capacities and on the dates indicated.
    

<TABLE>
<CAPTION>
        SIGNATURE                         TITLE                          DATE
- ------------------------  ------------------------------------- ---------------------
<S>                       <C>                                   <C>
/s/ W. Neil Bauer*        President and Director                January 14, 1997
- ------------------------     (Principal Executive Officer)                   
    W. Neil Bauer            

/s/ David J. Frear*       Vice President, Chief Financial       January 14, 1997
- ------------------------        Officer and Director
    David J. Frear       (Principal Financial Officer and
                            Principal Accounting Officer)         

/s/ Richard H. Shay*      Secretary and Director                January 14, 1997
- ------------------------  
    Richard H. Shay
</TABLE>

   
*By: /s/ David J. Frear
     -------------------
     David J. Frear
     Attorney in Fact
    
                                      II-8


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