ORBITAL SCIENCES CORP /DE/
10-K/A, 2000-06-27
SEARCH, DETECTION, NAVAGATION, GUIDANCE, AERONAUTICAL SYS
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<PAGE>   1
================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                 ---------------

                                   FORM 10-K/A

                                 AMENDMENT NO. 2

    TO ANNUAL REPORT ON FORM 10-K FOR THE FISCAL YEAR ENDED DECEMBER 31, 1996
                         COMMISSION FILE NUMBER 0-18287

                                  -------------

                          ORBITAL SCIENCES CORPORATION
               (EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER)

                                    DELAWARE
                         (STATE OR OTHER JURISDICTION OF
                  INCORPORATION OR ORGANIZATION OF REGISTRANT)
                                   06-1209561
                           (I.R.S. EMPLOYER I.D. NO.)

                            21700 ATLANTIC BOULEVARD
                             DULLES, VIRGINIA 20166
                    (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)

                                 (703) 406-5000
                         (REGISTRANT'S TELEPHONE NUMBER)

                                 ---------------
        SECURITIES REGISTERED PURSUANT TO SECTION 12(b) OF THE ACT: None

           Securities registered pursuant to Section 12(g) of the Act:
   Common Stock, par value $0.01 (listed on The Nasdaq National Market System)

================================================================================

       Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days. Yes X No __

       Indicate by check mark if disclosure of delinquent filers pursuant to
Item 405 of Regulation S-K is not contained herein, and will not be contained,
to the best of registrant's knowledge, in definitive proxy or information
statements incorporated by reference in Part III of this Form 10-K/A or any
amendment to this Form 10-K/A. [ ]

       The aggregate market value of the voting stock held by non-affiliates of
the registrant based on the closing sales price as reported on the Nasdaq Stock
Market on March 19, 1997 was approximately $515,228,830.

       As of March 12, 1997, 32,201,802 shares of the registrant's Common Stock
were outstanding.

                       DOCUMENTS INCORPORATED BY REFERENCE

       Portions of the registrant's Annual Report to Stockholders for fiscal
year ended December 31, 1996 (the "Annual Report") are incorporated by reference
in Parts I and II of this Report. Portions of the registrant's definitive Proxy
Statement dated March 24, 1997 (the "Proxy Statement") are incorporated by
reference in Part III of this Report.

<PAGE>   2

                                EXPLANATORY NOTE

       Orbital Sciences Corporation ("Orbital") has determined to restate its
consolidated financial statements for the years ended December 31, 1996 and 1995
and its condensed consolidated quarterly financial statements for 1996 and 1995.
This amendment includes in Item 8 such restated financial statements as of
December 31, 1996 and 1995 and for the years in the two-year period ended
December 31, 1996, and other information relating to such restated financial
statements, including Business (Item 1), Selected Financial Data (Item 6) and
Management's Discussion and Analysis of Financial Condition and Results of
Operation (Item 7). Information regarding the effect of the restatements on
Orbital's results of operations is included in the Notes to Financial Statements
included in Item 8 of this amendment.

       Except for Items 1, 6, 7 and 8 and Exhibits 11 and 27, no other
information included in the original report on Form 10-K is amended by this
amendment. For current information regarding risks, uncertainties and other
factors that may affect Orbital's future performance, please see "Outlook:
Issues and Uncertainties" included in Item 7 of Orbital's Annual Report on Form
10-K for the year ended December 31, 1999.

<PAGE>   3

                          ORBITAL SCIENCES CORPORATION

                                    INDEX TO

                          ANNUAL REPORT ON FORM 10-K/A
                        FOR YEAR ENDED DECEMBER 31, 1996

<TABLE>
<CAPTION>
                                                                                                                  PAGE
                   -------------                                                                                  -----
                    PART I
<S>               <C>             <C>                                                                               <C>
                   Item  1.        Business                                                                           1
                   Item  2.        Properties                                                                         8
                   Item  3.        Legal Proceedings                                                                  8
                   Item  4.        Submission of Matters to a Vote of Security Holders                                8
                   Item 4A.        Executive Officers of the Registrant                                               9

                   PART II

                   Item  5.        Market for Registrant's Common Equity                                             10
                   Item  6.        Selected Financial Data                                                           11
                   Item  7.        Management's Discussion and Analysis of Financial Condition
                                   and Results of Operations                                                         13
                   Item  8.        Financial Statements and Supplementary Data                                       18
                   Item  9.        Changes in and Disagreements with Accountants                                     45

                   PART III

                   Item 10.        Directors and Executive Officers of the Registrant                                45
                   Item 11.        Executive Compensation                                                            45
                   Item 12.        Security Ownership of Certain Beneficial Owners and Management                    45
                   Item 13.        Certain Relationships and Related Transactions                                    45

                   PART IV

                   Item 14.        Exhibits, Financial Statement Schedules and Reports on Form 8-K                   45
</TABLE>

       Pegasus(R) and Taurus(R) are registered trademarks and service marks, and
OrbView(R) is a registered trademark of Orbital Sciences Corporation;
Orbital(TM), MicroStar(TM) and PegaStar(TM) are trademarks of Orbital Sciences
Corporation; and Orbital(sm) and ORBIMAGE(sm) are service marks of Orbital
Sciences Corporation. ORBCOMM(sm) is a service mark of ORBCOMM Global, L.P.

<PAGE>   4

ITEM 1. BUSINESS

BACKGROUND

       Orbital Sciences Corporation (together with its subsidiaries, "Orbital"
or the "Company") is a space and information systems company that designs,
manufactures, operates and markets a broad range of space-related products and
services. Orbital's products and services are grouped into three business
sectors: space and ground infrastructure systems, satellite access products and
satellite services. Space and ground infrastructure systems include launch
vehicles, satellites, electronics and sensors, and ground systems and software.
Satellite access products include low-cost, hand-held satellite-based navigation
and communications products. Satellite services include satellite-based two-way
mobile data communications and remote sensing and Earth imaging services.
Orbital operates major launch vehicle, satellite and electronics engineering,
manufacturing and test facilities in Dulles, Virginia, Germantown, Maryland and
Chandler, Arizona, a launch vehicle and satellite integration and test facility
at Vandenberg Air Force Base, California, a space sensors and instruments
facility in Pomona, California, a ground systems and software facility in
Vancouver, British Columbia, and facilities for its navigation and
communications products in San Dimas, California and Mexicali, Mexico.

       Orbital was incorporated in Delaware in 1987 to consolidate the assets,
liabilities and operations of Space Systems Corporation and Orbital Research
Partners, L.P. The Company acquired Space Data Corporation ("Space Data") in
1988, thereby expanding its product lines and increasing its vertical
integration in production and testing. In late 1992, SSC and Space Data were
merged into Orbital, with the Company being the surviving corporation. In
September 1993, Orbital acquired all the assets of the Applied Science
Operation, a division of The Perkin-Elmer Corporation. This operation designs,
develops and produces satellite-borne scientific sensors for space and
terrestrial research, in situ atmospheric monitoring equipment for human space
flight programs and other sensors and instruments for commercial and military
applications. In August 1994 and December 1994, Orbital acquired Fairchild Space
and Defense Corporation ("Fairchild") and Magellan Corporation ("Magellan"),
respectively. The Fairchild acquisition enhanced Orbital's satellite system and
subsystem development and production capabilities and expanded Orbital's
existing product lines by adding various sophisticated electronics products.
Magellan designs, manufactures and markets hand-held receivers for Global
Positioning System ("GPS") satellite-based navigation and positioning for
commercial and consumer markets, along with portable satellite communications
equipment. In November 1995, Orbital acquired MacDonald, Dettwiler and
Associates, Ltd. ("MDA"), a leading supplier of commercial satellite imaging
ground stations and related information processing software based in Vancouver,
British Columbia.

       In 1992, Orbital established a wholly owned subsidiary, Orbital Imaging
Corporation ("ORBIMAGE"), to develop and operate commercial Earth imaging and
remote sensing satellites and to market the information services derived from
such satellites.

       In 1993, Orbital's majority owned subsidiary Orbital Communications
Corporation ("OCC") and Teleglobe Mobile Partners ("Teleglobe Mobile"), an
affiliate of Teleglobe Inc., formed ORBCOMM Global, L.P. ("ORBCOMM Global") to
develop, construct and operate a low-Earth orbit satellite-based two-way data
communications and messaging system (the "ORBCOMM System"). OCC and Teleglobe
Mobile also formed two marketing partnerships, ORBCOMM USA, L.P. ("ORBCOMM USA")
and ORBCOMM International Partners, L.P. ("ORBCOMM International"), each with
the exclusive right to market the ORBCOMM System in the United States and
internationally, respectively.

DESCRIPTION OF ORBITAL'S PRODUCTS AND SERVICES

       Orbital's products and services are grouped into three categories: space
and ground infrastructure systems, satellite access products and satellite
services. Orbital's overall business is not seasonal to any significant extent.

SPACE AND GROUND INFRASTRUCTURE SYSTEMS

       The Company's space and ground infrastructure systems include launch
vehicles, satellites, electronics and sensors, and ground systems and software.

       SPACE LAUNCH VEHICLES. The Company has developed and produces the Pegasus
and Taurus space launch vehicles. Orbital's Pegasus launch vehicle is launched
from beneath the Company's leased Lockheed L-1011 aircraft to deploy satellites
weighing up to 1,000 pounds into low-Earth orbit. Through December 1996, the
Company had conducted a total of fourteen Pegasus missions, twelve of which were
fully or partially successful. Whether a mission is fully or partially
successful depends on the

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<PAGE>   5

particular mission requirements designated by the customer. Orbital conducted
five Pegasus missions in 1996. Following a comprehensive review of design,
assembly, test and operations procedures triggered by two earlier unsuccessful
flights, the Pegasus XL, an enhanced version of the standard Pegasus launch
vehicle, successfully launched a satellite for the U.S. Air Force to its
intended orbit in March 1996 and performed two successful National Aeronautics
and Space Administration ("NASA") missions during the summer. A standard Pegasus
also successfully launched a U.S. Department of Defense ("DoD") satellite in May
1996. In a November 1996 launch for NASA, a Pegasus XL delivered two scientific
satellites to their designated orbits, but the satellites failed to separate
from the launch vehicle. The Pegasus separation system used on this launch has
worked properly on all previous launches on which it was deployed. The Company
believes that the problem was caused by a faulty electrical power system on the
Pegasus that failed to activate certain satellite separation mechanisms, and
does not anticipate significant further delays in its launch schedule to
implement necessary corrective actions.

       The higher capacity Taurus launch vehicle is a ground-launched derivative
of the Pegasus vehicle that can carry payloads weighing up to 3,000 pounds to
low-Earth orbit and payloads weighing up to 800 pounds to geosynchronous orbit.
In March 1994, Orbital successfully launched the first Taurus vehicle, deploying
two satellites for the Defense Advanced Research Projects Agency ("DARPA").

       U.S. and international government customers for Pegasus launch vehicles
include NASA, the U.S. Air Force, DARPA, the Ballistic Missile Defense
Organization ("BMDO"), and the national space agencies of Spain and Brazil.
Commercial customers include ORBCOMM Global and CTA, Incorporated ("CTA"). In
addition, ORBIMAGE plans to launch a remote imaging satellite on Pegasus.
Customers for Taurus launch vehicles include NASA, the U.S. Air Force, Ball
Corporation ("Ball"), ORBCOMM Global (as a secondary payload on the Ball
mission) and South Korea's space agency.

       During 1996, NASA selected Orbital to design, construct, test and operate
the X-34 reusable launch demonstrator vehicle. The X-34 will test and
demonstrate advanced reusable launch system technologies and materials as part
of NASA's Reusable Launch Vehicle Program that is spearheading the development
of next-generation, lower cost launch vehicles.

       SUBORBITAL LAUNCH VEHICLES. Suborbital launch vehicles place payloads
into a variety of high-altitude trajectories but, unlike space launch vehicles,
do not place payloads into orbit around the Earth. The Company's suborbital
launch products include suborbital vehicles and their principal subsystems,
payloads carried by such vehicles and related launch support installations and
systems used in their assembly and operation. The Company offers its customers
customized vehicle and payload design, manufacturing and integration, launch and
mission support, and tracking and recovery services, as well as construction and
activation of launch pads and other infrastructure elements. Customers typically
use the Company's suborbital launch vehicles to launch scientific and other
payloads and for defense-related applications such as target signature and
interceptor experiments. Primary customers of the Company's suborbital launch
vehicles include the U.S. Army, the U.S. Navy and BMDO.

       Orbital's primary programs in 1996 for suborbital launch vehicles and
related systems included the Theater Missile Defense Critical Measurement
Program pursuant to which Orbital provides ballistic and maneuvering tactical
target suborbital vehicles for use by the U.S. Army and U.S. Air Force in
developing and testing interceptor and sensor systems, and BMDO's Red Tigress
anti-missile defense research program. Orbital conducted two suborbital launches
in 1996, both of which were successful. From January 1993 through March 1997,
the Company has conducted a total of 34 launches of suborbital vehicles with a
100% success rate.

       SATELLITES. The Company designs and produces small and medium class
satellites for commercial, scientific and military applications. The Company's
small satellite platforms such as MicroStar and PegaStar are designed and
produced to be launched by the Pegasus or Taurus launch vehicle. The PegaStar
spacecraft is a general purpose spacecraft that has successfully performed one
mission for the U.S. Air Force measuring space radiation and carrying out
related experiments. It will also be used for certain ORBIMAGE satellite-based
remote imaging programs, such as the OrbView-2 ocean and land surface
environmental monitoring satellite system and the OrbView-3 high-resolution
remote imagery system. Orbital's MicroStar spacecraft platform, which is placed
into orbit by the Pegasus launch vehicle, is designed for use in the ORBCOMM
System and also for a variety of small space science and remote imaging
projects. The first three MicroStar spacecraft were deployed by Orbital in 1995,
two for the ORBCOMM System and the other for ORBIMAGE to monitor lightning and
severe weather patterns, and continued to perform throughout 1996. Customers for
the Company's small spacecraft include NASA, the U.S. Air Force, DARPA and
ORBCOMM Global.

         Orbital's medium class satellites, such as NASA's TOPEX/Poseidon,
NASA's Upper Atmosphere Research satellite and the National Oceanic and
Atmospheric Administration's Landsat 4 and Landsat 5, have been in space for up
to 15 years, and are used to gather various scientific data, such as ocean
topography and atmospheric imaging information. Orbital also is the spacecraft
supplier

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<PAGE>   6

to Johns Hopkins University, which is leading NASA's Far Ultraviolet
Spectroscopic Explorer (FUSE) program to measure the early universe's radiation.

       Orbital also designs and manufactures satellite command and data
handling, attitude control and structural subsystems for a variety of government
and commercial customers, and provides a broad range of spacecraft design and
engineering services as well as specialized analytical engineering services for
NASA, DoD, the Department of Energy and other customers. For example, Orbital
provided engineering support products and services for both the first and second
repair missions for the orbiting Hubble Space Telescope.

       ELECTRONICS AND SENSORS. Orbital develops, manufactures and markets
defense electronics, including advanced avionics and data management systems for
aircraft flight operations and ground support applications. These systems
collect, process and store mission-critical data for, among other things,
mission planning and flight operations, and manage on-board equipment for
strategic and tactical military aircraft, helicopters and surface vehicles. The
primary customers for data management systems are the U.S. Navy, the U.S. Air
Force, and various DoD prime contractors and foreign governments. The Company is
the leading supplier of certain avionics systems and products, including mission
data equipment for the U.S. Navy and data transfer equipment and digital terrain
systems for the U.S. Air Force. In addition, the Company provides stores
management systems, including weapons arming and firing functions for use on
tactical aircraft and helicopters. The avionics systems and products are
deployed on a number of platforms, including the F-4, F-14, F-16, F-18 and F-22
aircraft and the LAMPS helicopter.

       In addition, Orbital produces electronics and data management systems
that have been applied to the development and installation of "intelligent
transportation systems," primarily, to date, for metropolitan mass transit
operators. These systems help manage public bus and light rail systems, provide
for voice and data communications and transmit precise GPS-based location
information in emergency situations. Customers for Orbital's intelligent
transportation systems include the metropolitan mass transit authorities in
Chicago and New York City.

       Orbital also produces satellite-borne scientific sensors and instruments,
such as atmospheric ozone monitoring instruments and environmental sensors. The
Company's second and third Total Ozone Mapping Spectrometer ("TOMS") instruments
were successfully launched in 1996, one on a Pegasus vehicle for NASA. TOMS
measures ozone concentrations around the world for the purpose of monitoring the
effect of man-made chemicals and atmospheric conditions on the ozone layer.
Orbital has also developed and produced an atmospheric monitoring system for use
on the Space Station called the Atmospheric Composition Monitoring Assembly,
which will measure various atmospheric gases in the crew's living quarters on
the Space Station for the purpose of ensuring a healthy environment for
astronauts. In addition, Orbital recently expanded its commercial base of
sensors products to include the manufacturing and marketing of sensors that
analyze fuel properties in the chemical, biotechnology, pharmaceutical and steel
industries.

       SATELLITE GROUND SYSTEMS. Orbital is a leading supplier of commercial
satellite remote imaging ground stations and a provider of advanced
space-qualified software and air navigation systems. The Company's ground
systems have also expanded to include software-intensive systems designed for
naval operations, artillery command and control, radar deception and logistics
support.

       The Company develops, provides and upgrades commercial satellite remote
imaging ground stations and related information-processing software. Of the 27
major non-military satellite ground stations around the world, Orbital's MDA
subsidiary has built or been involved in the construction of 23 ground stations
in 20 countries. These ground stations are designed to receive and process data
from the eight major civil and commercial Earth observation satellites currently
in operation. MDA also develops and markets software that generates and
processes imagery and mapping products from satellites and airborne sensors.
Customers for the Company's ground stations and Earth information systems
include the European and Canadian space agencies as well as various commercial
and government customers around the world.

       The Company's aviation systems products include automated aeronautical
information and air traffic management systems. The Company has developed an
automated aeronautical information management system that delivers weather and
route information directly to a pilot by computer. This system is designed to
address a growing trend toward automation and commercial operation of air
traffic control systems. Faster and less expensive to operate than traditional
manual systems, automated aeronautical information systems provide pilots and
other users with aeronautical and meteorological information on a timely basis.
Customers for the Company's aviation systems products include the military and
civil aviation authorities in various countries such as Australia, Belgium,
Canada, Norway, Malaysia and Switzerland.

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<PAGE>   7

SATELLITE ACCESS PRODUCTS

       The Company's Magellan subsidiary designs, manufactures and markets
hand-held GPS navigators that provide users with precise positioning and
location information and also develops and provides personal data and voice
communicators that operate in conjunction with satellite systems. Magellan
manufactures satellite-based navigation and communications products for
commercial and consumer markets including recreational marine and aviation
users, outdoor recreational users such as hunters and hikers and professional
users such as geologists, geographers, surveyors, natural resource managers and
construction contractors. Magellan focuses its research, design and engineering
activities on the development of GPS navigators that are reliable, portable,
easy to use and highly affordable, targeting the growing recreational market.
Recently, Magellan announced the introduction of a combined GPS navigator and
personal messaging communicator for the ORBCOMM System that Magellan expects to
be ready for shipment in 1997, and Magellan will continue to develop new
satellite-based communications and tracking technology that is compatible with
the ORBCOMM System and other satellite networks.

SATELLITE SERVICES

       In the Company's satellite services sector, ORBCOMM Global and ORBIMAGE
are developing satellite-based services to address markets for global two-way
data communications and information derived from remote imaging of the
atmosphere, oceans and land surfaces.

       ORBCOMM COMMUNICATIONS SERVICES. The ORBCOMM System is designed to
provide virtually continuous low-cost monitoring, tracking and messaging
communications coverage over most of the Earth's surface. Under this system,
subscribers are able to use inexpensive communicators to send and receive short
messages, high priority alerts and other information, such as the location and
condition of automobiles, trucks, industrial equipment, shipping vessels and
other remote assets. The Company expects that the ability to send and receive
data and messages without the geographic limitations of existing communications
systems will stimulate the growth of new markets for satellite-based monitoring,
tracking and messaging communications and will be used to supplement
terrestrial-based communications systems by providing relatively low-cost
geographic coverage in areas these systems are unable to reach.

       The global ORBCOMM System design consists of a constellation of small
low-Earth orbit satellites, a control center that monitors and manages the flow
of information throughout the System, the gateways that transmit and receive
signals and process data and other information and the communicators that are
used by subscribers to transmit and receive messages to and from the satellites.
The first two ORBCOMM Global satellites launched in April 1995 are being used to
provide initial services, primarily in monitoring and tracking applications,
following the commencement of commercial service in the United States in
February 1996. There are currently four operational U.S. "gateway" Earth
stations located in New York, Washington, Arizona and Georgia, while gateways
are also planned to be owned and operated by ORBCOMM Global licensees in
strategic locations around the world. During 1996, ORBCOMM Global reached
agreements with several manufacturers for the development and manufacture of
hand-held communicators and various types of industrial communicators that
monitor fixed assets. In March 1996, subscriber communicators became
commercially available from Panasonic, the first of ORBCOMM's manufacturers.

       The ORBCOMM System will be operated throughout the world by ORBCOMM
Global licensees, who will be responsible for obtaining the applicable foreign
regulatory approvals and for constructing the ground network in their designated
territories. The ORBCOMM System is marketed in the United States through ORBCOMM
USA. ORBCOMM International has signed preliminary agreements with seven
candidate licensees serving 69 countries to seek such regulatory approvals and
to initiate territory-specific market development in such countries. ORBCOMM
International has definitive agreements with international licensees who will
provide regional services in Canada, Europe and portions of East Asia, the
Middle East and Africa.

       The two ORBCOMM System satellites currently in orbit and the U.S.
gateways provide communications availability in the United States approximately
10% of each 24-hour period, with maximum outages of approximately nine hours.
This type of availability is particularly appropriate for ORBCOMM Global's
planned initial applications focusing on monitoring the status of remote assets
and tracking trucks and cargo, where several readings per day satisfy a
customer's requirements. With the launch of additional satellites,
communications availability will also increase. The Company expects that, with a
planned constellation of 28 satellites and appropriately situated gateways, the
ORBCOMM System will provide communications availability generally exceeding 95%
of each 24-hour period in the United States and other temperate zones in the
Northern and Southern hemispheres and exceeding 75% of each 24-hour period in
the equatorial region. Equatorial region availability could be improved to
generally exceed 90% with an additional group of eight satellites. Outside the
United States, the ORBCOMM System will only be available in countries and
regions where appropriate licenses have been obtained and where there is a
gateway that can serve the applicable market.

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       Under the ORBCOMM System Procurement Agreement between Orbital and
ORBCOMM Global (the "Procurement Agreement"), Orbital is constructing and will
launch 26 additional satellites, and will construct an additional eight
satellites, all on a fixed-price basis. Consistent with industry practice for
similar contracts, the Procurement Agreement contains certain performance
incentives with respect to the satellites and their launches.

       The ORBCOMM Partnerships. Under ORBCOMM Global's partnership agreement,
action by the partnership generally requires the approval of general partners
holding a majority of the participating interests (i.e., interests participating
in profits and losses). OCC and Teleglobe Mobile are each 50% general partners
in ORBCOMM Global, with the result that OCC and Teleglobe Mobile share equal
responsibility for the operational and financial affairs of ORBCOMM Global, and
the approval of both OCC and Teleglobe Mobile is necessary for ORBCOMM Global to
act on major matters. OCC indirectly holds a 51% participating interest in
ORBCOMM USA, and Teleglobe Mobile indirectly holds a 51% participating interest
in ORBCOMM International, with the result that OCC acting alone can generally
control the operational and financial affairs of ORBCOMM USA, and Teleglobe
Mobile acting alone can generally control the operational and financial affairs
of ORBCOMM International.

       Financing. Orbital and Teleglobe Mobile's total equity capital
contributions to ORBCOMM Global are approximately $75 million and $85 million,
respectively. In 1996, ORBCOMM Global and its wholly owned subsidiary, ORBCOMM
Global Capital Corporation, issued $170,000,000 of senior unsecured notes (the
"Notes") to institutional investors. The Notes are fully and unconditionally
guaranteed on a joint and several basis by OCC, Teleglobe Mobile, ORBCOMM USA
and ORBCOMM International. The guarantees and the Notes are non-recourse to
Orbital, bear interest at a fixed rate of 14% and provide for noteholder
participation in future ORBCOMM System revenues, payment of which may be
deferred by ORBCOMM Global to the extent certain fixed charge ratios are not
met. Net proceeds from the sale of the Notes (approximately $164,500,000) are
being applied to (i) the design, construction, launch, operation and marketing
of the ORBCOMM System and related development, operating and management expenses
(including cost contingencies) and (ii) the first two years of interest on the
Notes.

       Start-up of the ORBCOMM System will produce significant ORBCOMM Global
operating losses for several more years. Even if the ORBCOMM System is fully
constructed and operational, there can be no assurance that an adequate market
will develop for ORBCOMM services, that ORBCOMM Global will achieve profitable
operations or that Orbital will recover any of its past or anticipated
investment in the ORBCOMM System. Because Orbital (through OCC) has a 50%
participating interest in ORBCOMM Global, Orbital expects to recognize its
proportionate share of ORBCOMM Global profits and losses.

       As of March 14, 1997, certain officers and employees of ORBCOMM Global
and Orbital held options to acquire 611,680 shares of OCC's common stock (or
approximately 13 percent of OCC's outstanding common stock) at option exercise
prices ranging from $1.50 to $26.50 per share. On an annual basis, holders of
OCC common stock acquired on exercise of these options may, subject to certain
conditions, require OCC to purchase such OCC common stock at its then fair
market value, subject to limitations under the indenture for the senior note
financing. As of March 14, 1997, there were 48,020 shares of OCC common stock
outstanding that were acquired in connection with option exercises by current or
former OCC and Orbital employees.

       Regulatory Approvals. OCC has retained control over the applicable
license issued by the Federal Communications Commission ("FCC"), consistent with
FCC regulations. This license, which provides that the ORBCOMM System must be
constructed within six years from the date the license was granted, extends for
a period of ten years from the date the first ORBCOMM System satellite was
operational. At the end of the seventh year of the ten-year term, a renewal
application must be filed with the FCC. As with any such license, the ORBCOMM
System FCC license may be revoked and a license renewal application may be
denied for cause. In addition, there can be no assurance that ORBCOMM Global or
its international licensees will be granted all licenses or approvals necessary
to operate the ORBCOMM System in any other country.

       ORBIMAGE REMOTE SENSING AND IMAGING SERVICES. The Company is currently
seeking, through its ORBIMAGE subsidiary, to develop and market a broad range of
information services that involve identifying and monitoring global
environmental changes and weather patterns, and collecting and disseminating
digital land maps and other remote imaging information. Small Earth-viewing
satellites and related sensors and instruments placed in low orbits are planned
to offer cost-efficient image collection and processing, together with daily
global coverage and high-resolution imaging quality.

       Since April 1995, ORBIMAGE's first satellite, OrbView-1, has been
monitoring lightning and severe weather patterns. Orbital has also entered into
a contract with NASA to provide worldwide, daily ocean imagery using Orbital's
OrbView-2 environmental monitoring satellite system. The Company plans to
develop, produce, launch and operate the OrbView-2 system to deliver
high-quality multi-spectral ocean imagery and land surface imagery for up to
five years. The OrbView-2 launch has been delayed several

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<PAGE>   9

years, primarily due to technical challenges associated with the development of
the spacecraft. The OrbView-2 satellite has completed final testing and is
currently scheduled to be launched in the first half of 1997. In addition to
providing unprocessed real-time ocean data to NASA, ORBIMAGE plans to market the
OrbView-2 imagery directly and indirectly through value-added resellers and
other marketing agents to other U.S. Government users and to potential domestic
and international customers such as commercial fishing fleets, oil and gas
companies, ocean transportation operators, oceanographers and agricultural
companies.

       ORBIMAGE is pursuing a one-meter high-resolution satellite imagery
business based on imagery to be provided by the OrbView-3 satellite currently
under development by the Company, with Orbital under contract to provide the
launch service, ground stations and other related products and services.
OrbView-3 would be the third in a fleet of three spacecraft, including OrbView-1
and OrbView-2, that will constitute the foundation of ORBIMAGE's commercial
satellite remote imagery business. The Company is currently pursuing a
transaction that would involve a sale of ORBIMAGE equity securities to one or
more third parties in order to finance such venture including the development
and construction of the OrbView-3 satellite and ground system. There can be no
assurance that the Company will be able to conclude such financing arrangement
or develop profitable commercial Earth observation and other remote imaging
businesses.

                                     * * * *

       Financial information about the Company's products and services, domestic
and foreign operations and export sales is included in "Management's Discussion
and Analysis of Financial Condition and Results of Operations" set forth below
in Item 7 and the notes to the Company's consolidated financial statements set
forth below in Item 8, and is incorporated herein by reference.

COMPETITION

       Orbital believes that competition for sales of its products and services
is based on performance and other technical features, price, reliability,
scheduling and customization.

       While there is currently no direct domestic competition for the Pegasus
and Taurus launch vehicles, potential competition may come from launch systems
derived from the LMLV currently being developed by Lockheed Martin Corporation
("Lockheed"). Pegasus may face competition from launch systems derived from
government surplus ballistic missiles. The Israeli Shavit vehicle and other
potential foreign launch vehicles could also pose competitive challenges to
Pegasus, although U.S. government policy currently prohibits the launch of
foreign vehicles from U.S. territory. Competition for Taurus could come from
surplus Titan II launch vehicles, although a very limited inventory remains.
Japan's space agency has a launcher that directly competes with Taurus in terms
of launch capacity, but is considerably more expensive than the Taurus.
Competition to Pegasus and Taurus vehicles also exists in the form of partial or
secondary ("piggyback") payload capacity on larger boosters such as the Ariane,
Titan, Delta, Long March and Proton launch vehicles. While several companies
design and manufacture suborbital launch vehicles, Orbital's primary competitors
in this product line are Coleman Research Corp. and Space Vector Corporation.

       The Company's satellite systems and subsystems products compete with
products and services produced or provided by government entities and numerous
companies, including TRW Inc., CTA, Ball and Spectrum Astro, Inc. The Company's
airborne and ground-based electronics, data management systems, defense-oriented
avionics products and software systems and aviation systems face competition
from several established manufacturers. The Company's space sensors and
instruments face competition from a number of companies and university research
laboratories capable of designing and producing space instruments. The Company's
main competitors in the area of satellite ground stations include Datron Systems
Inc., Matra Marconi Space N.V. and Hughes-STX Corp.

       Magellan's marine, outdoor recreation and aviation GPS satellite-based
navigation products primarily face competition from Garmin International.
Magellan competes with a larger number of producers of satellite navigation and
communications products in its other markets. The Company believes that
Magellan's success will depend on its ability to continue to develop new
lower-cost and enhanced performance products to enter into and develop new
markets for GPS navigators and personal satellite communicators, and to develop
and strengthen sales and distribution channels for such products.

         The ORBCOMM System will face competition from numerous existing and
potential alternative communications products and services provided by various
large and small companies, including sophisticated two-way satellite-based data
and voice communications services. For specific markets, the ORBCOMM System may
complement existing tower-based services such as one-way and two-way paging,
cellular data, specialized mobile radio and private networks. ORBIMAGE may face
competition from U.S.

                                       6

<PAGE>   10

and foreign government entities and private entities, such as EarthWatch
Incorporated and Space Imaging L.P., that provide or are seeking to provide
satellite-based and other land remote imaging, environmental monitoring and
atmospheric sensing products.

       Many of the Company's competitors are larger and have substantially
greater resources than the Company. Furthermore, the possibility exists that
other domestic or foreign companies or governments, some with greater experience
in the space industry and greater financial resources than Orbital, will seek to
produce products or services that compete with those of the Company. Any such
foreign competitor could benefit from subsidies from, or other protective
measures by, its home country.

RESEARCH AND DEVELOPMENT

       The Company expects to continue to invest in product-related research and
development, to conceive and develop new products and services, to enhance
existing products and services and to seek customer and, where appropriate,
strategic partner investments in these products and services. Orbital's research
and development expenses, excluding direct customer-funded development, were
approximately $23.1 million, $28.6 million and $17.3 million, respectively, for
the fiscal years ended December 31, 1996, 1995 and 1994.

PATENTS AND TRADEMARKS

       Orbital relies, in part, on patents, trade secrets and know-how to
develop and maintain its competitive position and technological advantage. The
Company holds U.S. and foreign patents relating to the Pegasus vehicle and U.S.
patents relating to the ORBCOMM System as well as for other systems and products
produced by the Company. The Company also has various pending patent
applications relating to Pegasus and the ORBCOMM System along with other
products. Certain of the trademarks and service marks used in connection with
the Company's products and services have been registered with the U.S. Patent
and Trademark Office, the Canadian Intellectual Property Office and certain
other foreign trademark authorities.

COMPONENTS AND RAW MATERIALS

       Orbital purchases a significant percentage of its product components,
including rocket propulsion motors, structural assemblies and electronic
equipment, from third parties. Orbital also occasionally obtains from the U.S.
Government parts and equipment that are used in the production of the Company's
products or in the provision of the Company's services. Orbital has not
experienced material difficulty in obtaining product components or necessary
parts and equipment and believes that alternative sources of supply would be
available, although increased costs and possible delays could be incurred in
securing alternative sources of supply. The Company's ability to launch its
Pegasus vehicle depends on the availability of an aircraft with the capability
of carrying and launching such space launch vehicles. Orbital entered into a
10-year lease in 1992 for the modified Lockheed L-1011 used for the air-launch
of the Pegasus vehicle.

U.S. GOVERNMENT CONTRACTS

       During 1996, 1995 and 1994, approximately 45 percent, 40 percent and 45
percent, respectively, of the Company's total annual revenues were derived from
contracts with the U.S. Government and its agencies or from subcontracts with
the U.S. Government's prime contractors. Orbital's government contracts are
subject to regular audit and periodic reviews and may be modified, increased,
reduced or terminated in the event of changes in government requirements or
policies, Congressional appropriations and program progress and scheduling. U.S.
Government curtailment of expenditures for space research and development and
related products and services could have a material adverse effect on Orbital's
revenues and results of operations. Agencies within the U.S. Government and
commercial customers to which sales by the Company accounted for ten percent or
more of the Company's consolidated 1996 revenues were NASA, DoD and ORBCOMM
Global.

       Orbital's major contracts with the U.S. Government fall into three
categories: firm fixed-price contracts, fixed-price incentive fee contracts and
cost-plus-fee contracts. Under firm fixed-price contracts, work performed and
products shipped are paid for at a fixed price without adjustment for actual
costs incurred in connection with the contract. Risk of loss due to increased
cost, therefore, is borne by the Company, although some of this risk may be
passed on to subcontractors. Under fixed-price government contracts, Orbital may
receive progress payments, generally in an amount equal to between 80 and 95
percent of monthly costs, or it may receive milestone payments upon the
occurrence of certain program achievements, with final payments occurring at
project completion. Fixed-price incentive fee contracts provide for sharing by
the customer and the Company of unexpected costs incurred or savings realized
within specified limits, and may provide for adjustments in price depending on
actual contract performance other than costs. Costs in excess of the negotiated
maximum (ceiling) price and the risk of loss by reason of such excess costs are
borne by the

                                       7

<PAGE>   11

Company, although some of this risk may be passed on to subcontractors. Under a
cost-plus-fee contract, Orbital recovers its actual allowable costs incurred and
receives a fee consisting of a base amount that is fixed at the inception of the
contract and/or an award amount that is based on the Government's subjective
evaluation of the contractor's performance in terms of the criteria stated in
the contract.

       All Orbital's U.S. Government contracts and, in general, its subcontracts
with the U.S. Government's prime contractors provide that such contracts may be
terminated at will by the U.S. Government or the prime contractor, respectively.
Furthermore, any of these contracts may become subject to a government-issued
stop work order under which the Company is required to suspend production. In
the event of a termination at will, Orbital is normally entitled to recognize
the purchase price for delivered items, reimbursement for allowable costs for
work in process and an allowance for reasonable profit thereon or adjustment for
loss if completion of performance would have resulted in a loss. The Company
from time to time experiences contract suspensions and terminations.

BACKLOG

       Orbital's contract backlog is attributable to its space and ground
infrastructure systems business. The Company's firm backlog at December 31, 1996
and 1995 was approximately $710 million and $530 million, respectively. As of
December 31, 1996, approximately 60 percent of the Company's backlog was with
the U.S. Government and its agencies or from subcontracts with the U.S.
Government's prime contractors. Backlog consists of aggregate contract values
for firm product orders, excluding the portion previously included in operating
revenues on the basis of percentage of completion accounting, and including
government contract orders not yet funded in the amounts of approximately $265
million and $355 million as of December 31, 1996 and 1995, respectively.
Approximately $325 million of backlog is currently scheduled to be performed
beyond 1997. Backlog excludes unexercised and undefinitized contract options
having an aggregate potential contract value at December 31, 1996 of
approximately $1.4 billion.

EMPLOYEES

       As of December 31, 1996, Orbital had approximately 3,000 full-time
permanent employees.

ITEM 2. PROPERTIES

       In 1993, Orbital entered into a 12-year lease agreement for approximately
100,000 square feet of office and engineering space in Dulles, Virginia, which
serves as its corporate headquarters. The Company owns an approximate 30,000
square-foot satellite engineering and manufacturing facility on land adjacent to
the Dulles office facility and is constructing an addition to such facility to
provide additional office, engineering and manufacturing space. Orbital also
leases approximately 320,000 square feet of office, engineering and
manufacturing space in Germantown, Maryland; 305,000 square feet of office,
engineering and manufacturing space in Chandler, Arizona; approximately 214,000
square feet of office and engineering space in Richmond, British Columbia;
approximately 135,000 square feet of office, engineering and manufacturing space
in Pomona, California; and approximately 75,000 square feet of office,
engineering and manufacturing space in San Dimas, California. The Company leases
or owns other smaller facilities, offices or manufacturing space around the
United States, including Huntsville, Alabama; Edwards Air Force Base,
California; Vandenberg Air Force Base, California and Greenbelt, Maryland; as
well as in other locations in Canada such as Ottawa, Ontario, as well as in
England, Malaysia, Mexico and Australia. Although completion of the Company's
existing and pending contracts may in the future require additional
manufacturing capacity, Orbital believes that its existing facilities are
adequate for its near- and medium-term requirements.

ITEM 3. LEGAL PROCEEDINGS

       On November 12, 1996, BTG USA Inc. filed a lawsuit against Magellan in
the U.S. District Court for the Eastern District of Pennsylvania, alleging that
Magellan's GPS products infringe a United States patent and seeking an
unspecified amount of monetary damages. The patent at issue expired in November
1996. The Company believes the complaint has no merit, and the Company is
vigorously defending the action.

ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

       There was no matter submitted to a vote of the Company's security holders
during the fourth quarter of 1996.

                                       8

<PAGE>   12

ITEM 4A. EXECUTIVE OFFICERS OF THE REGISTRANT

       The following table sets forth the name, age and position of each of the
Executive Officers of Orbital as of March 1, 1997. All Executive Officers are
elected annually and serve at the discretion of the Board of Directors.

<TABLE>
<CAPTION>

                    NAME                   AGE                          POSITION
<S>          <C>                           <C>   <C>

              David W. Thompson             42    Chairman of the Board, President and Chief Executive Officer
              Bruce W. Ferguson             42    Executive Vice President and General Manager/Communications
                                                  and Information Services Group
              James R. Thompson             60    Executive Vice President and General Manager/Launch Systems Group
              Michael D. Griffin            47    Executive Vice President and General Manager/Space Systems Group
              Robert D. Strain              40    Executive Vice President and General Manager/Electronics and Sensor
                                                  Systems Group
              Daniel E. Friedmann           40    Executive Vice President and General Manager/Systems Integration
                                                  and Software Group
              Jeffrey V. Pirone             36    Senior Vice President and Chief Financial Officer
              Antonio L. Elias              47    Senior Vice President and Chief Technical Officer
              Leslie C. Seeman              44    Senior Vice President, General Counsel and Secretary
</TABLE>

       David W. Thompson is a founder of Orbital and has been Chairman of the
Board, President and Chief Executive Officer of the Company since 1982. From
1981 to 1982, Mr. Thompson was Special Assistant to the President at Hughes
Aircraft Company's Missile Systems Group. From 1977 to 1979, Mr. Thompson was
employed by NASA at the Marshall Space Flight Center as a project manager and
engineer. Prior to that, he worked on the Space Shuttle's autopilot design at
the Charles Stark Draper Laboratory.

       Bruce W. Ferguson is a founder of Orbital and has been Executive Vice
President and General Manager/Communications and Information Services Group
since October 1993 and a Director of the Company since 1982. Mr. Ferguson was
Executive Vice President and Chief Operating Officer of Orbital from 1989 to
October 1993 and Senior Vice President/Finance and Administration and General
Counsel of Orbital from 1985 to 1989.

       James R. Thompson (who is not related to David W. Thompson) has been
Executive Vice President and General Manager/Launch Systems Group since October
1993 and a Director since January 1992. Mr. Thompson was Executive Vice
President and Chief Technical Officer of Orbital from 1991 to October 1993. He
was Deputy Administrator of NASA from 1989 to 1991. From 1986 until 1989, Mr.
Thompson was Director of NASA's Marshall Space Flight Center. He was Deputy
Director for Technical Operations at Princeton University's Plasma Physics
Laboratory from 1983 through 1986. Before that, he had a 20-year career with
NASA at the Marshall Space Flight Center.

       Michael D. Griffin has been Executive Vice President/Space Systems Group
since January 1996. Dr. Griffin joined Orbital in August 1995 when he was
appointed Senior Vice President and Chief Technical Officer. From 1994 to August
1995, he was Senior Vice President for Program Development at Space Industries
International. From September 1991 to January 1994, he served as Chief Engineer
of NASA and, from 1989 to 1991, was Deputy Director for Technology at the
Strategic Defense Initiative Organization.

       Robert D. Strain has been Executive Vice President and General
Manager/Electronics and Sensor Systems Group since October 1996. From 1994 until
1996, he was Vice President for Finance and Manufacturing at Orbital. Prior to
that he served in a variety of senior-level financial positions with Fairchild,
including Vice President of Finance, Treasurer and Controller.

       Daniel E. Friedmann has been Executive Vice President and General
Manager/Systems Integration and Software Group since January 1996. He continues
to serve as President and Chief Executive Officer of Orbital's subsidiary, MDA,
a position he has held since March 1995. From 1992 to March 1995, he served as
Executive Vice President and Chief Operating Officer of MDA. Between 1979 and
1992, he held a variety of positions at MDA, including serving as Vice President
of various divisions.

       Jeffrey V. Pirone has been Senior Vice President and Chief Financial
Officer since August 1996, and had served as acting Chief Financial Officer as
of April 1996. From 1993 until March 1996, Mr. Pirone served as Vice President
and Controller of Orbital. Mr. Pirone joined Orbital as Controller in 1991, and
prior to that was a Senior Manager at KPMG Peat Marwick LLP.

       Antonio L. Elias has been Senior Vice President and Chief Technical
Officer since January 1996. From May 1993 through December 1995 he was Senior
Vice President for Advanced Projects and was Senior Vice President/Space Systems
Division from 1990 to April 1993. He was Vice President/Engineering of Orbital
from 1989 to 1990 and was Chief Engineer from 1986 to 1989. From 1980 to 1986,
Dr. Elias was an Assistant Professor of Aeronautics and Astronautics at
Massachusetts Institute of Technology.

                                       9

<PAGE>   13

       Leslie C. Seeman has been Senior Vice President of the Company since
October 1993 and General Counsel and Secretary of the Company since 1989. From
1989 to October 1993, she was Vice President of the Company, and from 1987 to
1989, Ms. Seeman was Assistant General Counsel of Orbital. From 1984 to 1987,
she was General Counsel of Source Telecomputing Corporation, a
telecommunications company. Prior to that, she was an attorney at the law firm
of Wilmer, Cutler and Pickering.

                                     PART II

ITEM 5. MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER MATTERS

       On March 12, 1997, there were 1,549 Orbital stockholders of record. The
Company's Common Stock is traded on the Nasdaq Stock Market under the symbol
ORBI. The range of high and low closing sales prices of Orbital Common Stock for
1994 through 1996, as reported on the Nasdaq Stock Market, was as follows:

<TABLE>
<CAPTION>

        1996                        HIGH          LOW
        ----                  -----------  ------------
<S>    <C>                   <C>           <C>
        Fourth Quarter        $ 21 7/8      $ 16 1/4
        Third Quarter         $ 20          $ 16
        Second Quarter        $ 19 7/8      $ 13
        First Quarter         $ 16 1/8      $ 11 3/4

        1995                        HIGH          LOW
        ----                  -----------  ------------
        Fourth Quarter        $ 16 5/8      $ 12 3/16
        Third Quarter         $ 19 1/4      $ 16
        Second Quarter        $ 22          $ 15 1/2
        First Quarter         $ 20 1/2      $ 16 1/2

        1994                        HIGH          LOW
        ----                  -----------  ------------
        Fourth Quarter        $ 22 1/2      $ 15
        Third Quarter         $ 18 1/2      $ 14 1/2
        Second Quarter        $ 24 1/2      $ 14
        First Quarter         $ 26 1/2      $ 15 1/4
</TABLE>

       Orbital has never paid a cash dividend on its Common Stock. The Company
currently intends to retain earnings primarily for working capital and product
development and therefore does not anticipate paying dividends in the
foreseeable future. In addition, the Company is prohibited from paying cash
dividends under an existing credit facility.

                                       10

<PAGE>   14


ITEM 6. SELECTED FINANCIAL DATA

       Management has determined to restate its previously issued consolidated
financial statements as of and for the years ended December 31, 1996 and 1995
with respect to certain matters described in Note 1A to the Company's
consolidated financial statements. The following selected consolidated financial
data should be read in conjunction with the consolidated financial statements
and notes thereto included in this Report. The consolidated operating data and
other data for the three-year period ended December 31, 1996 and the
consolidated balance sheet data at December 31, 1996 and 1995 are derived from
and should be read in conjunction with the audited consolidated financial
statements and notes thereto included in this Report. The consolidated operating
and other data for the years ended December 31, 1993 and 1992 and the
consolidated balance sheet data at December 31, 1994, 1993 and 1992 are derived
from consolidated financial statements not included or incorporated by reference
herein.

                              SELECTED CONSOLIDATED
                                 FINANCIAL DATA
                        (IN THOUSANDS, EXCEPT SHARE DATA)

<TABLE>
<CAPTION>
                                                                                  YEARS ENDED DECEMBER 31,
                                                                        1996                1995                  1994
                                                                -----------------  --------------------  --------------------
<S>                                                             <C>                   <C>                   <C>
OPERATING DATA:                                                         (restated)           (restated)
 Revenues                                                        $        449,787     $        359,840      $        301,576
 Costs of goods sold                                                      332,581              271,146               216,417
                                                                 ----------------     ----------------      ----------------
 Gross profit                                                             117,206               88,694                85,159
 Research and development expenses                                         23,068               28,558                17,259
 Selling, general and administrative expenses                              77,247               64,170                53,165
 Amortization of goodwill                                                   3,134                3,221                 2,360
                                                                 ----------------   ------------------    ------------------
 Income (loss) from operations                                             13,757               (7,255)               12,375
 Net investment income (expense)                                              (49)               1,131                  (244)
 Equity in earnings (losses) of affiliates                                 (7,008)                (644)               (1,264)
 Non-controlling interests in (earnings) losses of  consolidated
  subsidiaries                                                              1,473                  427                    --
 Acquisition expenses                                                          --               (3,441)                 (503)
                                                                 ----------------     ----------------      ----------------
 Income (loss) before provision (benefit) for income taxes,
  extraordinary item and cumulative effect of accounting
  change                                                                    8,173               (9,782)               10,364
 Provision (benefit) for income taxes                                         211               (6,569)                2,744
                                                                 ----------------     ----------------      ----------------
 Income (loss) before extraordinary item and cumulative effect
  of accounting change                                                      7,962               (3,213)                7,620
 Extraordinary item--gain on sale of assets, net of tax                     1,980                   --                    --
 Cumulative effect of accounting change, net of tax                            --               (2,377)                   --
                                                                 ----------------     ----------------      ----------------
 Net income (loss)                                               $          9,942     $         (5,590)     $          7,620
                                                                 ================     ================      ================

NET INCOME (LOSS) PER COMMON AND
     COMMON EQUIVALENT SHARE (1):
     Income (loss) before extraordinary item and cumulative
      effect of accounting change                                    $       0.27         $      (0.12)         $       0.33
     Extraordinary item--gain on sale of assets, net of tax                  0.07                   --                    --
     Cumulative effect of accounting change, net of tax                        --                (0.09)                   --
                                                                     ------------         ------------          ------------
                                                                     $       0.34         $      (0.21)         $       0.33
                                                                     ============         ============          ============
SHARES USED IN COMPUTING NET INCOME (LOSS) PER
     COMMON AND COMMON EQUIVALENT SHARE
                                                                       29,137,361           26,207,746            23,191,553
                                                                     ============         ============          ============
NET INCOME (LOSS) PER COMMON SHARE, ASSUMING
     FULL DILUTION (2):
     Income (loss) before extraordinary item and cumulative
      effect of accounting change                                    $       0.30         $      (0.12)         $       0.32
     Extraordinary item--gain on sale of assets, net of tax                  0.04                   --                    --
     Cumulative effect of accounting change, net of tax                        --                (0.09)                   --
                                                                     ------------         ------------          ------------
                                                                     $       0.34         $      (0.21)         $       0.32
                                                                     ============         ============          ============
SHARES USED IN COMPUTING NET INCOME (LOSS)
     PER COMMON SHARE, ASSUMING FULL DILUTION                          31,616,119           26,207,746            27,309,336
                                                                     ============         ============          ============
BALANCE SHEET DATA:
     Cash and cash equivalents and short-term investments            $     33,750         $     35,030          $     40,345
     Net working capital                                                   71,055               78,778                57,449
     Total assets                                                         509,613              472,900               441,042
     Short-term borrowings                                                 38,969               11,907                28,977
     Long-term obligations, net                                            35,326               96,990                86,068
     Stockholders' equity                                                 323,795              238,166               206,943

<CAPTION>
                                                                              YEARS ENDED DECEMBER 31,
                                                                            1993              1992
                                                                   --------------------  -------------------
<S>                                                                   <C>                   <C>
OPERATING DATA:
 Revenues                                                             $        300,184      $        273,171
 Costs of goods sold                                                           228,289               207,834
                                                                      ----------------      ----------------
 Gross profit                                                                   71,895                65,337
 Research and development expenses                                              19,703                15,565
 Selling, general and administrative expenses                                   38,270                41,723
 Amortization of goodwill                                                        1,634                 1,606
                                                                    ------------------    ------------------
 Income (loss) from operations                                                  12,288                 6,443
 Net investment income (expense)                                                   (44)                  860
 Equity in earnings (losses) of affiliates                                      (2,436)                   --
 Non-controlling interests in (earnings) losses of  consolidated
  subsidiaries                                                                      --                    --
 Acquisition expenses                                                               --                    --
                                                                      ----------------      ----------------
 Income (loss) before provision (benefit) for income taxes,
  extraordinary item and cumulative effect of accounting
  change                                                                         9,808                 7,303
 Provision (benefit) for income taxes                                            2,403                 1,997
                                                                      ----------------      ----------------
 Income (loss) before extraordinary item and cumulative effect of
   accounting change                                                             7,405                 5,306
 Extraordinary item--gain on sale of assets, net of tax                             --                    --
 Cumulative effect of accounting change, net of tax                                200                    --
                                                                      ----------------      ----------------
 Net income (loss)                                                    $          7,605      $          5,306
                                                                      ================      ================

NET INCOME (LOSS) PER COMMON AND
     COMMON EQUIVALENT SHARE (1):
     Income (loss) before extraordinary item and cumulative effect of
       accounting change                                                  $       0.40          $       0.29
     Extraordinary item--gain on sale of assets, net of tax                         --                    --
     Cumulative effect of accounting change, net of tax                           0.01                    --
                                                                        --------------        --------------
                                                                          $       0.41          $       0.29
                                                                          ============          ============
SHARES USED IN COMPUTING NET INCOME (LOSS) PER
     COMMON AND COMMON EQUIVALENT SHARE
                                                                            18,728,980            18,492,059
                                                                      ================      ================
NET INCOME (LOSS) PER COMMON SHARE, ASSUMING
     FULL DILUTION (2):
     Income (loss) before extraordinary item and cumulative effect of
      accounting change                                                   $       0.36          $       0.29
     Extraordinary item--gain on sale of assets, net of tax                         --                    --
     Cumulative effect of accounting change, net of tax                           0.01                    --
                                                                          ------------         -------------
                                                                          $       0.37          $       0.29
                                                                          ============          ============
SHARES USED IN COMPUTING NET INCOME (LOSS)
     PER COMMON SHARE, ASSUMING FULL DILUTION                               22,343,402            18,492,059
                                                                      ================      ================
BALANCE SHEET DATA:
     Cash and cash equivalents and short-term investments             $         85,347      $         16,019
     Net working capital                                                        92,036                41,527
     Total assets                                                              367,979               212,151
     Short-term borrowings                                                      15,793                 6,377
     Long-term obligations, net                                                 73,165                10,818
     Stockholders' equity                                                      169,389               111,687
</TABLE>


                                       11



<PAGE>   15


1. Net income (loss) per common and common equivalent share is calculated using
  the weighted average number of shares and dilutive equivalent shares
  outstanding during the periods.

2. Net income (loss) per common share, assuming full dilution, is calculated
  using the weighted average number of shares and dilutive equivalent shares
  outstanding during the periods, plus the effect of an assumed conversion of
  the Company's convertible subordinated debentures prior to their actual
  conversion in 1996.




                                       12
<PAGE>   16


ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
        OF OPERATIONS

OVERVIEW

   A significant portion of the company's space and ground infrastructure
systems revenues are generated under long-term contracts with various agencies
of the U.S. Government, various foreign governments and commercial customers.
Orbital recognizes revenues on long-term contracts using the percentage of
completion method of accounting, under which revenue and profit are recognized
based on actual costs incurred in relation to total estimated costs to complete
the contract or specific delivery terms and conditions. To the extent that
estimated costs of completion are adjusted, revenue recognized from a particular
contract will be affected in the period of the adjustment.

   The company is accounting for its 50% investment in ORBCOMM Global, L.P.
("ORBCOMM Global") using the equity method of accounting. In accordance with the
equity method of accounting, Orbital consolidates 100% of the revenues earned
and costs incurred on sales of products and services to ORBCOMM Global. The
company also recognizes as equity in earnings (losses) of affiliates its
proportionate share of ORBCOMM Global's profits and losses. During the
construction phase of the ORBCOMM system, ORBCOMM Global is capitalizing
substantially all system construction costs, including amounts paid to Orbital.
To the extent ORBCOMM Global capitalizes its purchases from Orbital, the company
eliminates as equity in earnings (losses) of affiliates 50% of its profits and
losses from those sales. Orbital controls, and therefore consolidates the
accounts of, ORBCOMM USA, L.P., a partnership that markets ORBCOMM system
services in the United States.

   In 1995, the company adopted the provisions of the Financial Accounting
Standards Board's Statement of Financial Accounting Standards No. 121,
"Accounting for the Impairment of Long-Lived Assets and Long-Lived Assets to be
Disposed Of" ("SFAS 121"). The cumulative effect of adopting SFAS 121 on prior
years' earnings, relating to the impairment in the carrying amount of certain
assets to be disposed of that supported the company's orbit transfer vehicle
product line, was $2,377,000, net of tax benefit of $1,783,000, and is reported
in the 1995 consolidated statement of operations.

   Statements included in this discussion and in the Annual Report relating to
future revenues, sales, expenses, growth rates, net income, new business,
operational performance, schedules, sources and uses of funds, and the level of
the company's investment in satellite imaging projects and the ORBCOMM business
are forward-looking statements that involve risks and uncertainties. Factors
that may cause the actual results, performance or achievements of the company to
differ materially from any future results, performance or achievements expressed
or implied by such forward-looking statements include, among other things,
general economic and business conditions, launch success, product performance,
availability of required capital, market acceptance of new products and
technologies and other factors more fully described in Exhibit 99 to the
company's Report on Form 10-K for the year ended December 31, 1996.

   Certain of the 1996 and 1995 financial information has been restated. See
Notes 1A and 14 to the consolidated financial statements.

SIGNIFICANT RECENT ACQUISITIONS

   Orbital acquired MacDonald, Dettwiler and Associates, Ltd. ("MDA") on
November 17, 1995 and Magellan Corporation ("Magellan") on December 29, 1994.
Both transactions were accounted for using the pooling of interests method of
accounting for business combinations. Orbital's historical financial information
has been restated to effect the pooling of interests with MDA and Magellan as of
the earliest period presented. Orbital incurred transaction expenses of
approximately $3,400,000 and $500,000 in 1995 and 1994, respectively, related to
these business combinations.

   On August 11, 1994, Orbital acquired Fairchild Space and Defense Corporation
("Fairchild"), a subsidiary of Matra Aerospace, Inc., in a transaction accounted
for as a purchase business combination. Fairchild's results of operations for
the nineteen-week period ended December 31, 1994 have been included in Orbital's
consolidated results of operations for the year ended December 31, 1994.



                                       13
<PAGE>   17

   The following table shows the company's revenues, gross profits and margins,
by major product category within each business sector, for each of the three
years ended December 31, 1996, 1995 and 1994:

<TABLE>
<CAPTION>
                                               1996 (RESTATED)                               1995 (RESTATED)
                             ---------------------------------------------   -------------------------------------------
                                                                  (DOLLARS IN THOUSANDS)
                                                   GROSS                                           GROSS
                                 REVENUES         PROFIT         MARGIN          REVENUES         PROFIT       MARGIN
                             ----------------  ------------   ------------   ----------------  -----------  ------------
<S>                          <C>               <C>             <C>            <C>              <C>           <C>
SPACE AND GROUND
   INFRASTRUCTURE SYSTEMS      $    377,166    $     93,899      24.9%         $    296,109    $    65,360    22.1%

     Launch Vehicles                103,687          18,769      18.1                67,803          7,462     11.0

     Satellites                     101,891          22,625      22.2                82,849         10,431     12.6

     Electronics and
       Sensor Systems                92,070          26,608      28.9                71,983         24,597     34.2

     Ground Systems
       and Software                  79,518          25,897      32.6                73,474         22,870     31.1

SATELLITE ACCESS PRODUCTS            71,188          25,134      35.3                52,531         20,085     38.2
SATELLITE-DELIVERED SERVICES          1,433          (1,827)      N/A                11,200          3,249     29.0
                               ------------    ------------     -----          ------------    -----------     ----
CONSOLIDATED TOTALS            $    449,787    $    117,206      26.1%         $    359,840    $    88,694     24.6%
                               ============    ============     =====          ============    ===========     ====



<CAPTION>

                                                                   1994
                                                 -----------------------------------------
                                                             (DOLLARS IN THOUSANDS)
                                                                       GROSS
                                                     REVENUES         PROFIT        MARGIN
                                                 ----------------  -----------   ---------
<S>                                               <C>             <C>             <C>
SPACE AND GROUND
   INFRASTRUCTURE SYSTEMS                          $    252,905    $    61,239      24.2%

     Launch Vehicles                                     84,970         16,954      20.0

     Satellites                                          35,032          9,231      26.4

     Electronics and
       Sensor Systems                                    53,273         14,775      27.7

     Ground Systems
       and Software                                      79,630         20,279      25.5

SATELLITE ACCESS PRODUCTS                                38,517         17,802      46.2

SATELLITE-DELIVERED SERVICES                             10,154          6,118      60.3
                                                   ------------    -----------      ----
CONSOLIDATED TOTALS                                $    301,576    $    85,159      28.2%
                                                   ============    ===========      ====




</TABLE>

RESULTS OF OPERATIONS

REVENUES

   Orbital's consolidated revenues for 1996, 1995 and 1994 were $449,787,000,
$359,840,000 and $301,576,000, respectively. Revenues include sales to ORBCOMM
Global of approximately $47,215,000, $49,187,000 and $30,048,000 in 1996, 1995
and 1994, respectively.

   Space and Ground Infrastructure Systems. Revenues from the company's space
and ground infrastructure systems increased to $377,166,000 in 1996, from
$296,109,000 in 1995 and $252,905,000 in 1994.

   Revenues from the company's launch vehicles increased to $103,687,000 in 1996
from $67,803,000 in 1995. Launch vehicle revenues were $84,970,000 in 1994. The
decrease in revenues from 1994 to 1995 is primarily attributable to significant
delays in production of the company's Pegasus space launch vehicle as a result
of the June 1994 and June 1995 Pegasus XL launch failures. The significant
increase in revenues in 1996 is attributable to revenues generated from the
resumption of production and launch of the Pegasus XL launch vehicle and from
work performed under new and existing contracts for the company's Taurus launch
vehicle. During 1996, Orbital carried out four successful Pegasus launches. A
fifth Pegasus launch, which occurred in November 1996, delivered two NASA
satellites to their targeted orbits, but the two satellites failed to separate
from the launch vehicle. The company believes that the problem was caused by a
faulty electrical power system on the Pegasus launcher that failed to activate
certain satellite separation mechanisms, and does not anticipate significant
further launch delays as a result of this problem.

   Revenues from sales of satellites increased to $101,891,000 in 1996, from
$82,849,000 in 1995 and $35,032,000 in 1994. The increase in satellite revenues
in 1995 as compared to 1994 is primarily attributable to a full year's sales of
satellites following the 1994 acquisition of Fairchild. The increase in 1996 is
primarily attributable to additional revenues generated from new satellite
orders from commercial and government customers received in late 1995 and in
1996.

   Electronics and sensor systems revenues increased to $92,070,000 in 1996,
from $71,983,000 in 1995 and $53,273,000 in 1994. The increase in 1995 as
compared to 1994 is primarily due to a full year's sales of defense electronics
products following the 1994 acquisition of Fairchild offset, in part, by a
decrease in space sensors and instruments sales. The increase in 1996 revenues
is primarily attributable to work performed on defense electronics and
intelligent transportation management systems orders received in 1995 and 1996.

   Ground systems and software revenues were $79,518,000, $73,474,000 and
$79,630,000 in 1996, 1995 and 1994, respectively. Sales of satellite ground
systems declined in 1995 due to a decrease in worldwide demand for ground system
installations; however, the number of installations and upgrades increased in
1996, resulting in greater revenues.




                                       14
<PAGE>   18

   Satellite Access Products. Revenues from sales of satellite navigation and
communications products were $71,188,000 for 1996, as compared to $52,531,000 in
1995 and $38,517,000 in 1994. The year-to-year increases are due to significant
growth in the number of Global Positioning System ("GPS") products sold offset,
in part, by lower average unit sales prices.

   Satellite-Delivered Services. The company's start-up satellite-delivered
services businesses generated revenues of $1,433,000, $11,200,000 and
$10,154,000 for 1996, 1995 and 1994, respectively. Satellite-delivered services
revenues for 1996 were primarily attributable to sales of satellite imagery to
government and commercial customers by the company's subsidiary, Orbital Imaging
Corporation ("ORBIMAGE"), as well as modest sales of ORBCOMM services in the
United States. Revenues in 1995 and 1994 primarily represented sales of ground
stations and network software to ORBCOMM Global; no such sales were made in
1996.

COSTS OF GOODS SOLD

   Costs of goods sold include the costs of personnel, materials, subcontracts
and overhead related to commercial products and under the company's various
development and production contracts. Orbital's costs of goods sold for 1996,
1995 and 1994 were $332,581,000 (73.9% of revenues), $271,146,000 (75.4% of
revenues) and $216,417,000 (71.8% of revenues), respectively. The reduction in
costs of goods sold as a percentage of revenues in 1996 is attributable in part
to resumption of production of the company's Pegasus space launch vehicle. Other
contributing factors include increased profit margins on certain satellite and
ground systems contracts offset, in part, by lower average unit sales prices of
satellite navigation products.

   Profit margins in 1996 decreased as a result of the November Pegasus launch
anomaly and certain other unanticipated contract cost increases. There can be no
assurance that the company will have sufficient contingency reserves to cover
any future launch vehicle or other contract cost increases. Also during 1996,
the company recognized a decrease in costs of goods sold of $2,523,000 related
to the write-off or expiration of certain Canadian Development loans no longer
required or expected to be repaid. The increase in costs of goods sold as a
percentage of revenues in 1995 as compared to 1994 is attributable in part to
approximately $2,100,000 of cost increases on the Pegasus program resulting from
two earlier launch failures, and unanticipated cost increases on certain
satellite programs.

RESEARCH AND DEVELOPMENT EXPENSES

   Research and development expenses represent Orbital's self-funded product
development activities, and exclude direct customer-funded development. Research
and development expenses during 1996, 1995 and 1994 were $23,068,000,
$28,558,000 and $17,259,000, respectively. Research and development spending
during 1996 relates primarily to the development of new or improved navigation
and communications access products, improved launch vehicles, including
enhancements to the Taurus and Pegasus launch vehicles, and new satellite
initiatives. Research and development spending during 1995 and 1994 reflected
Orbital's continued development of its Pegasus XL, including certain failure
review and resolution efforts of approximately $7,900,000 in 1995. Research and
development expenses in 1995 included $3,000,000 of costs related to an advanced
reusable launch vehicle development program.

SELLING, GENERAL AND ADMINISTRATIVE EXPENSES

   Selling, general and administrative expenses include the costs of marketing,
advertising, promotion and other selling expenses as well as the costs of the
finance, legal, administrative and general management functions of the company.
Selling, general and administrative expenses for 1996, 1995 and 1994 were
$77,247,000 (17.2% of revenues), $64,170,000 (17.8% of revenues) and $53,165,000
(17.6% of revenues), respectively. The decrease in selling, general and
administrative expenses as a percentage of revenues from 1995 to 1996 is
primarily attributable to significant growth in space and ground infrastructure
revenues, along with only modest growth in selling, general and administrative
expenses attributable to those product lines offset, in part, by increased costs
from expanded marketing efforts related to the company's satellite-delivered
services start-up businesses.

INVESTMENT INCOME AND INTEREST EXPENSE

   Net investment income (expense) was ($49,000), $1,131,000 and ($244,000) for
1996, 1995 and 1994, respectively. Investment income reflects interest earnings
on short-term investments and realized gains and losses on investments, reduced
by interest expense on outstanding debt of $1,412,000, $2,952,000 and $1,740,000
in 1996, 1995 and 1994, respectively. Investment income in 1995 included an
approximate $2,000,000 gain on the sale of an investment. Interest expense is
net of capitalized interest of approximately $8,156,000, $6,685,000 and
$5,500,000 in 1996, 1995 and 1994, respectively. On August 14, 1996, the company
completed the

                                       15
<PAGE>   19

redemption of the remaining $55,880,000 outstanding principal amount of its
6.75% Convertible Subordinated Debentures due 2003, thereby reducing interest
payments going forward.

EQUITY IN LOSSES OF AFFILIATES AND NON-CONTROLLING INTERESTS IN LOSSES OF
CONSOLIDATED SUBSIDIARIES

   Equity in losses of affiliates includes Orbital's proportionate share of
ORBCOMM Global's net income or loss for the year and Orbital's elimination of
proportionate profits or losses on sales to ORBCOMM Global. In 1996, Orbital's
share of ORBCOMM Global's net loss was $8,268,000, and Orbital eliminated
$714,000 of losses on sales to ORBCOMM Global. In 1995, Orbital's share of
ORBCOMM Global's net income was $454,000, and Orbital eliminated $1,213,000 of
profits on sales to ORBCOMM Global. In 1994, ORBCOMM Global had no net income or
loss, and Orbital eliminated $1,264,000 of profits on sales to ORBCOMM Global.
Non-controlling interests in losses of consolidated subsidiaries represents that
portion of the subsidiary's losses allocable to other shareholders.

PROVISION (BENEFIT) FOR INCOME TAXES

   The company recorded consolidated income tax provisions of $211,000 and
$2,744,000 for 1996 and 1994, respectively. The company's effective tax rate for
these periods (2.6% and 26.5% in 1996 and 1994, respectively) is primarily a
result of non-tax deductible goodwill amortization related to purchase
acquisitions, offset by tax-exempt interest earnings, U.S. Federal net operating
loss carryforwards and Canadian investment tax credits. The company recorded an
income tax benefit of approximately $6,569,000 in 1995, primarily as a result of
reducing the deferred tax valuation allowance related to the realizability of
certain tax credits, and other tax assets and the carryback and recapture of
previously paid U.S. Federal taxes and management's determination that certain
Canadian investment tax credit carryforwards would be realized in the near
future.

   At December 31, 1996, Orbital had approximately $120,000,000 of U.S. Federal
net operating loss carryforwards and $3,000,000 of U.S. Federal research and
experimental tax credit carryforwards which, subject to certain annual
limitations, are available to reduce future U.S. Federal income tax obligations.
At December 31, 1996 and 1995, Orbital provided an allowance of $54,432,000 and
$68,021,000, respectively, against certain of its consolidated deferred tax
assets.

EXTRAORDINARY GAIN ON SALE OF ASSETS

   In the fourth quarter of 1996, the company's wholly-owned subsidiary,
MacDonald, Dettwiler and Associates (MDA), sold substantially all the assets of
The PSC Communications Group, Inc. for approximately $13,000,000, resulting in a
gain of approximately $3,600,000. The gain on sale of $1,980,000, net of tax,
has been recorded as an extraordinary item since the assets were acquired
through the acquisition of MDA in 1995, which was accounted for as a pooling of
interests.

LIQUIDITY AND CAPITAL RESOURCES

   The company's growth has required substantial capital to fund both an
expanding business base and significant research and development and capital
expenditures. The company has funded these requirements to date, and expects to
fund its requirements in the future, through cash generated by operations,
working capital, loan facilities, asset-based financings, joint venture
arrangements, and private and public equity and debt offerings. Additionally,
the company has historically made strategic acquisitions of businesses and
routinely evaluates potential acquisition candidates. The company expects to
continue to pursue potential acquisitions that it believes would enhance its
business. The company has historically financed its acquisitions, and expects to
finance its future acquisitions, through cash on hand, cash generated by
operations, the issuance of debt and/or equity securities, and/or asset-based
financings.

   Cash, cash equivalents and short-term investments were $33,750,000 at
December 31, 1996, and the company had short-term and long-term debt obligations
outstanding of approximately $74,295,000. The outstanding debt relates primarily
to advances under the company's line of credit facilities, secured and unsecured
notes, and fixed asset financings. Cash and cash equivalents included
approximately $11,604,000 of cash reserved against outstanding letters of
credit. Orbital's current ratio was 1.5 at December 31, 1996, compared to 1.7
and 1.4 at December 31, 1995 and 1994, respectively.

   In December 1996 and June 1995, the company issued and sold 1,200,000 and
2,000,000 shares, respectively, of its Common Stock in private placements to
various offshore institutional investors, receiving net proceeds of
approximately $20,000,000 and $32,400,000, respectively.


                                       16
<PAGE>   20


   On August 14, 1996, the company completed the redemption of the remaining
$55,880,000 outstanding principal amount of its 6.75% Convertible Subordinated
Debentures due 2003. The outstanding principal amount was converted into
3,887,304 shares of Common Stock.

   Orbital amended its $20,000,000 unsecured note agreement during the third
quarter of 1996 to facilitate compliance with certain financial covenants as
well as to permit the completion of the ORBCOMM Global debt financing. In
connection with this amendment, the interest rate on the note was increased from
10.5% to 11.5%, effective July 1, 1996. The unsecured note contains certain
covenants with respect to fixed charge ratio, leverage ratio and tangible net
worth, and includes certain cross-default provisions. The company is currently
considering restructuring or refinancing this debt.

   The company's primary revolving credit facility provides for total borrowings
from an international syndicate of six banks of up to $65,000,000, subject to a
defined borrowing base comprised of certain receivables. Approximately
$8,000,000 of borrowings were outstanding under the facility at December 31,
1996, and the available facility limit was approximately $36,000,000. At
December 31, 1996, the average interest rate on outstanding borrowings under
this facility was approximately 7.5%. Borrowings are secured by receivables and
certain other assets. The facility prohibits the payment of cash dividends and
contains certain covenants with respect to the company's working capital, fixed
charge ratio, leverage ratio and tangible net worth, and expires in September
1997. Orbital plans to extend this facility in 1997.

   The company also maintains two additional revolving credit facilities, under
which approximately $23,200,000 was outstanding at December 31, 1996. The
borrowing capacity of the two additional agreements was approximately
$35,000,000, consisting of a $10,000,000 line of credit collateralized by
substantially all the assets of Magellan and an unsecured $25,000,000 demand
line of credit.

   On August 7, 1996, ORBCOMM Global issued and sold $170,000,000 of senior
unsecured notes due 2004 (the "Notes") to institutional investors. The Notes
bear interest at a fixed rate of 14%, and provide for noteholder participation
in future ORBCOMM Global service revenues. Net proceeds from the sale of the
Notes are being applied to (i) the design, construction, launch, operation and
marketing of ORBCOMM Global services, (ii) operating and management expenses
(including cost contingencies) and (iii) the first two years of interest on the
Notes. The Notes are fully and unconditionally guaranteed on a joint and several
basis by the company's majority owned subsidiary, Orbital Communications
Corporation, and by Teleglobe Mobile Partners; the guarantee is non-recourse to
Orbital.

   The company's operations provided net cash of approximately $14,521,000
during 1996. The company also invested approximately $21,546,000 in ORBCOMM
Global, incurred $10,355,000 in capital expenditures related to ORBIMAGE
satellite imaging systems and incurred approximately $39,844,000 in capital
expenditures for various launch vehicle, satellite and other production and test
equipment to support future growth.

   Orbital expects that the capital required for the design, development,
construction, marketing and initial operations of its ORBIMAGE commercial
satellite imaging business will be approximately $225,000,000. The company has
invested approximately $60,000,000 to date on imaging satellites and related
ground systems that are currently operating, in the final testing phase, or
under design and development. Orbital expects to invest up to $30,000,000 in
ORBIMAGE satellite imaging projects in 1997. In addition, Orbital is exploring
alternatives for raising capital to fund the remaining costs of such projects,
including customer financing and the issuance of securities at the ORBIMAGE
subsidiary level.





                                       17
<PAGE>   21



 ITEM 8.         FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

                                                INDEX TO FINANCIAL STATEMENTS
<TABLE>
<CAPTION>
                                                                                      Page
                                                                                      ----
<S>                                                                                   <C>
Independent Auditors' Report                                                           19
Consolidated Statements of Operations                                                  20
Consolidated Balance Sheets                                                            21
Consolidated Statements of Stockholders' Equity                                        22
Consolidated Statements of Cash Flows                                                  23
Notes to Consolidated Financial Statements                                             24
</TABLE>






                                       18
<PAGE>   22


                          INDEPENDENT AUDITORS' REPORT

THE BOARD OF DIRECTORS AND STOCKHOLDERS
ORBITAL SCIENCES CORPORATION:

        We have audited the accompanying consolidated balance sheets of Orbital
Sciences Corporation and subsidiaries as of December 31, 1996 and 1995, and the
related consolidated statements of operations, stockholders' equity, and cash
flows for each of the years in the three-year period ended December 31, 1996.
These consolidated financial statements are the responsibility of the Company's
management. Our responsibility is to express an opinion on these consolidated
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 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 consolidated financial statements referred to above
present fairly, in all material respects, the financial position of Orbital
Sciences Corporation and subsidiaries as of December 31, 1996 and 1995, and the
results of their operations and their cash flows for each of the years in the
three-year period ended December 31, 1996, in conformity with generally accepted
accounting principles.

        As discussed in note 1A, the accompanying consolidated balance sheets as
of December 31, 1996 and 1995, and the consolidated statements of operations,
stockholders' equity and cash flows for the years ended December 31, 1996 and
1995 have been restated.

                                                        KPMG LLP

Washington, D.C.
February 5, 1997, except as to note 1A,
  which is as of April 17, 2000



                                       19
<PAGE>   23



                             CONSOLIDATED STATEMENTS
                                  OF OPERATIONS
                        (IN THOUSANDS, EXCEPT SHARE DATA)

<TABLE>
<CAPTION>

                                                                                                FOR THE YEARS ENDED DECEMBER 31,

                                                                                                               1996
                                                                                                     ------------------------
                                                                                                            (RESTATED)
<S>                                                                                                     <C>

Revenues                                                                                                  $       449,787
Costs of goods sold                                                                                               332,581
                                                                                                          ---------------
Gross profit                                                                                                      117,206

Research and development expenses                                                                                  23,068
Selling, general and administrative expenses                                                                       77,247
Amortization of goodwill                                                                                            3,134
                                                                                                          ---------------
Income (loss) from operations                                                                                      13,757

Net investment income (expense), net of interest expense of
   $1,412, $2,952, and $1,740, respectively                                                                           (49)
Equity in earnings (losses) of affiliates                                                                          (7,008)
Non-controlling interests in (earnings) losses of consolidated subsidiaries                                         1,473
Acquisition expenses                                                                                                   --
                                                                                                          ---------------

Income (loss) before provision (benefit) for income taxes,
  extraordinary item and cumulative effect of accounting change                                                     8,173
Provision (benefit) for income taxes                                                                                  211
                                                                                                          ---------------

Income (loss) before extraordinary item and cumulative effect of accounting change                                  7,962
Extraordinary item - gain on sale of assets, net of tax                                                             1,980
Cumulative effect of accounting change, net of taxes                                                                   --
                                                                                                          ---------------
Net income (loss)                                                                                         $         9,942
                                                                                                          ===============
NET INCOME (LOSS) PER COMMON AND COMMON EQUIVALENT SHARE:
Income (loss) before extraordinary item and cumulative effect of accounting change                        $          0.27
Extraordinary item--gain on sale of assets, net of tax                                                               0.07
Cumulative effect of accounting change, net of tax                                                                     --
                                                                                                          ---------------
                                                                                                          $          0.34
                                                                                                          ===============
Shares used in computing net income (loss)
    per common and common equivalent share                                                                     29,137,361
                                                                                                          ===============

NET INCOME (LOSS) PER COMMON SHARE, ASSUMING FULL DILUTION:
Income (loss) before extraordinary item and cumulative effect of accounting change                        $          0.30
Extraordinary item--gain on sale of assets, net of tax                                                               0.04
Cumulative effect of accounting change, net of tax                                                                     --
                                                                                                          ---------------
                                                                                                          $          0.34
                                                                                                          ===============
Shares used in computing net income (loss)
   per common share, assuming dilution                                                                         31,616,119
                                                                                                          ===============






                                                                                             FOR THE YEARS ENDED DECEMBER 31,

                                                                                              1995                      1994
                                                                                    ------------------------  ----------------------
                                                                                           (RESTATED)
<S>                                                                                    <C>                        <C>
Revenues                                                                                 $       359,840           $       301,576
Costs of goods sold                                                                              271,146                   216,417
                                                                                         ---------------           ---------------
Gross profit                                                                                      88,694                    85,159

Research and development expenses                                                                 28,558                    17,259
Selling, general and administrative expenses                                                      64,170                    53,165
Amortization of goodwill                                                                           3,221                     2,360
                                                                                         ---------------           ---------------
Income (loss) from operations                                                                     (7,255)                   12,375

Net investment income (expense), net of interest expense of
   $1,412, $2,952, and $1,740, respectively                                                        1,131                      (244)
Equity in earnings (losses) of affiliates                                                           (644)                   (1,264)
Non-controlling interests in (earnings) losses of consolidated subsidiaries                          427                        --
Acquisition expenses                                                                              (3,441)                     (503)
                                                                                         ---------------           ---------------

Income (loss) before provision (benefit) for income taxes,
  extraordinary item and cumulative effect of accounting change                                   (9,782)                   10,364
Provision (benefit) for income taxes                                                              (6,569)                    2,744
                                                                                         ---------------           ---------------

Income (loss) before extraordinary item and cumulative effect of accounting change                (3,213)                    7,620
Extraordinary item - gain on sale of assets, net of tax                                               --                        --
Cumulative effect of accounting change, net of taxes                                              (2,377)                       --
                                                                                         ---------------           ---------------
Net income (loss)                                                                        $        (5,590)          $         7,620
                                                                                         ===============           ===============
NET INCOME (LOSS) PER COMMON AND COMMON EQUIVALENT SHARE:
Income (loss) before extraordinary item and cumulative effect of accounting change       $         (0.12)              $      0.33
Extraordinary item--gain on sale of assets, net of tax                                                --                        --
Cumulative effect of accounting change, net of tax                                                 (0.09)                       --
                                                                                         ---------------           ---------------
                                                                                         $         (0.21)              $      0.33
                                                                                         ===============           ===============
Shares used in computing net income (loss)
    per common and common equivalent share                                                    26,207,746                23,191,553
                                                                                         ===============           ===============

NET INCOME (LOSS) PER COMMON SHARE, ASSUMING FULL DILUTION:
Income (loss) before extraordinary item and cumulative effect of accounting change       $         (0.12)              $      0.32
Extraordinary item--gain on sale of assets, net of tax                                                --                        --
Cumulative effect of accounting change, net of tax                                                 (0.09)                       --
                                                                                         ----------------          ---------------
                                                                                         $         (0.21)              $      0.32
                                                                                         ================          ===============
Shares used in computing net income (loss)
   per common share, assuming dilution                                                        26,207,746                27,309,336
                                                                                         ===============           ===============


</TABLE>

See accompanying notes to consolidated financial statements.



                                       20
<PAGE>   24


                                  CONSOLIDATED
                                 BALANCE SHEETS
                        (IN THOUSANDS, EXCEPT SHARE DATA)

<TABLE>
<CAPTION>
                                                                                                       DECEMBER 31,
                                                                                                 1996                 1995
                                                                                           -----------------   ------------------
ASSETS                                                                                       (RESTATED)            (RESTATED)
<S>                                                                                        <C>                   <C>
CURRENT ASSETS:

  Cash and cash equivalents, including restricted cash of
    $11,604 and $10,700, respectively                                                        $    27,923          $    15,317
  Short-term investments, at market                                                                5,827               19,713
  Receivables, net                                                                               140,973              116,761
  Inventories, net                                                                                27,159               38,527
  Deferred income taxes and other current assets                                                   5,952                6,886
                                                                                             -----------          -----------
    TOTAL CURRENT ASSETS                                                                         207,834              197,204
                                                                                             -----------          -----------

PROPERTY, PLANT AND EQUIPMENT, at cost, less accumulated depreciation and amortization of
     $69,534 and $53,614, respectively                                                           126,888              105,901
INVESTMENTS IN AFFILIATES, net                                                                    88,394               75,020
EXCESS OF PURCHASE PRICE OVER NET ASSETS ACQUIRED, less accumulated amortization of
  $15,942 and $13,695, respectively                                                               69,512               75,395
DEFERRED INCOME TAXES AND OTHER ASSETS                                                            16,985               19,380
                                                                                             -----------          -----------
  TOTAL ASSETS                                                                               $   509,613          $   472,900
                                                                                             ===========          ===========

LIABILITIES AND STOCKHOLDERS' EQUITY

CURRENT LIABILITIES:
Short-term borrowings and current portion of long-term obligations                           $    38,969          $    11,907
Accounts payable                                                                                  26,611               25,903
Accrued expenses                                                                                  40,019               48,115
Deferred revenue                                                                                  31,180               32,501
                                                                                             -----------          -----------
  TOTAL CURRENT LIABILITIES                                                                      136,779              118,426
                                                                                             -----------          -----------
LONG-TERM OBLIGATIONS, net of current portion                                                     35,326               96,990
OTHER LIABILITIES                                                                                 15,523               19,740
                                                                                             -----------          -----------
  TOTAL LIABILITIES                                                                              187,628              235,156
                                                                                             -----------          -----------
NON-CONTROLLING INTERESTS IN NET ASSETS OF CONSOLIDATED SUBSIDIARIES                              (1,810)                (422)

COMMITMENTS AND CONTINGENCIES

STOCKHOLDERS' EQUITY:
Preferred Stock, par value $.01; 10,000,000 shares authorized:
  Series A Special Voting Preferred Stock, one share authorized and outstanding                       --                   --
  Class B Preferred Stock, 10,000 shares authorized and outstanding                                   --                   --
Common Stock, par value $.01; 40,000,000 shares authorized, 32,160,598 and 26,766,029
  shares outstanding, after deducting 15,735 shares held in treasury                                 322                  268
Additional paid-in capital                                                                       323,592              247,580
Unrealized gains  on short-term investments                                                           14                   68
Cumulative translation adjustment                                                                 (3,681)              (3,356)
Retained earnings (accumulated deficit)                                                            3,548               (6,394)
                                                                                             -----------          -----------
TOTAL STOCKHOLDERS' EQUITY                                                                       323,795              238,166
                                                                                             -----------          -----------
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY                                                   $   509,613          $   472,900
                                                                                             ===========          ===========
</TABLE>

See accompanying notes to consolidated financial statements.




                                       21
<PAGE>   25


                             CONSOLIDATED STATEMENTS
                             OF STOCKHOLDERS' EQUITY
                        (IN THOUSANDS, EXCEPT SHARE DATA)

<TABLE>
<CAPTION>


                                                                    COMMON STOCK
                                                    ----------------------------------------          ADDITIONAL
                                                            SHARES                 AMOUNT          PAID-IN CAPITAL
                                                    ---------------------  -----------------       ---------------
<S>                                                    <C>                    <C>                     <C>
BALANCE, DECEMBER 31, 1993                                 21,725,693              $   217               $   177,379

  Shares issued to employees and directors                    107,387                    2                     1,619
  Shares issued in purchase business combination            2,424,242                   24                    30,976
  Adjustment to recast year end of pooled company                  --                   --                        --
  Transactions of pooled companies                                 --                   --                        56
  Translation adjustment                                           --                   --                        --
  Net income                                                       --                   --                        --
  Unrealized losses on short-term investments                      --                   --                        --
                                                         ------------              -------               -----------
BALANCE, DECEMBER 31, 1994                                 24,257,322                  243                   210,030

  Shares issued to employees and directors                    300,011                    3                     1,857
  Shares issued in private offering                         2,000,000                   20                    32,366
  Conversion of convertible debentures                        208,696                    2                     2,914
  Adjustment to recast year end of pooled company                  --                   --                        --
  Transactions of pooled company                                   --                   --                       413
  Translation adjustment                                           --                   --                        --
  Net loss                                                         --                   --                        --
  Unrealized gains on short-term investments                       --                   --                        --
                                                         ------------              -------               -----------
BALANCE, DECEMBER 31, 1995 (restated)                      26,766,029                  268                   247,580

  Shares issued to employees and directors                    298,916                    3                     2,163
  Shares issued in private offering                         1,200,000                   12                    20,251
  Conversion of convertible debentures                      3,895,653                   39                    53,598
  Translation adjustment                                           --                   --                        --
  Net income                                                       --                   --                        --
  Unrealized losses on short-term investments                      --                   --                        --
                                                         ------------              -------               -----------
BALANCE, DECEMBER 31, 1996 (restated)                      32,160,598              $   322               $   323,592
                                                         ============              =======               ===========

<CAPTION>

                                                        UNREALIZED
                                                     GAINS (LOSSES) ON            CUMULATIVE            RETAINED EARNINGS
                                                        SHORT-TERM                TRANSLATION               (ACCUMULATED
                                                        INVESTMENTS               ADJUSTMENT                  DEFICIT)
                                                        -----------        -----------------------   -----------------------
<S>                                                      <C>                     <C>                       <C>
BALANCE, DECEMBER 31, 1993                                $     12                $   (2,335)              $    (5,884)

  Shares issued to employees and directors                      --                        --                        --
  Shares issued in purchase business combination                --                        --                        --
  Adjustment to recast year end of pooled company               --                        --                    (1,138)
  Transactions of pooled companies                              --                        --                      (355)
  Translation adjustment                                        --                      (776)                       --
  Net income                                                    --                        --                     7,620
  Unrealized losses on short-term investments                 (474)                       --                        --
                                                          --------                ----------               -----------
BALANCE, DECEMBER 31, 1994                                    (462)                   (3,111)                      243

  Shares issued to employees and directors                      --                        --                        --
  Shares issued in private offering                             --                        --                        --
  Conversion of convertible debentures                          --                        --                        --
  Adjustment to recast year end of pooled company               --                        --                    (1,047)
  Transactions of pooled company                                --                        --                        --
  Translation adjustment                                        --                      (245)                       --
  Net loss                                                      --                        --                    (5,590)
  Unrealized gains on short-term investments                   530                        --                        --
                                                          --------                ----------               -----------
BALANCE, DECEMBER 31, 1995 (restated)                           68                    (3,356)                   (6,394)

  Shares issued to employees and directors                      --                        --                        --
  Shares issued in private offering                             --                        --                        --
  Conversion of convertible debentures                          --                        --                        --
  Translation adjustment                                        --                      (325)                       --
  Net income                                                    --                        --                     9,942
  Unrealized losses on short-term investments                  (54)                       --                        --
                                                          --------                ----------               -----------
BALANCE, DECEMBER 31, 1996 (restated)                     $     14                $   (3,681)              $     3,548
                                                          ========                ==========               ===========


<CAPTION>

                                                           TOTAL
                                                     ------------------
<S>                                                        <C>
BALANCE, DECEMBER 31, 1993                                 $   169,389

  Shares issued to employees and directors                       1,621
  Shares issued in purchase business combination                31,000
  Adjustment to recast year end of pooled company               (1,138)
  Transactions of pooled companies                                (299)
  Translation adjustment                                          (776)
  Net income                                                     7,620
  Unrealized losses on short-term investments                     (474)
                                                           -----------
BALANCE, DECEMBER 31, 1994                                     206,943

  Shares issued to employees and directors                       1,860
  Shares issued in private offering                             32,386
  Conversion of convertible debentures                           2,916
  Adjustment to recast year end of pooled company               (1,047)
  Transactions of pooled company                                   413
  Translation adjustment                                          (245)
  Net loss                                                      (5,590)
  Unrealized gains on short-term investments                       530
                                                           -----------
BALANCE, DECEMBER 31, 1995 (restated)                          238,166

  Shares issued to employees and directors                       2,166
  Shares issued in private offering                             20,263
  Conversion of convertible debentures                          53,637
  Translation adjustment                                          (325)
  Net income                                                     9,942
  Unrealized losses on short-term investments                      (54)
                                                           -----------
BALANCE, DECEMBER 31, 1996 (restated)                      $   323,795
                                                           ===========
</TABLE>

See accompanying notes to consolidated financial statements.





                                       22
<PAGE>   26

                             CONSOLIDATED STATEMENTS
                                  OF CASH FLOWS
                                 (IN THOUSANDS)

<TABLE>
<CAPTION>
                                                                                       FOR THE YEARS ENDED DECEMBER 31,
                                                                                 1996                1995                1994
                                                                          ------------------  ------------------  ------------------
CASH FLOWS FROM OPERATING ACTIVITIES:                                         (RESTATED)          (RESTATED)
<S>                                                                        <C>                  <C>                  <C>
  NET INCOME (LOSS)                                                          $      9,942        $     (5,590)       $      7,620
     ADJUSTMENTS TO RECONCILE NET INCOME (LOSS) TO NET CASH
     PROVIDED BY (USED IN) OPERATING ACTIVITIES:
        Depreciation and amortization expense                                      25,096              22,229              17,198
        Equity in losses of affiliates                                              7,008                 644               1,264
        Non-controlling interests in losses of consolidated subsidiaries           (1,473)               (427)                 --
        Loss (gain) on sale of fixed assets and investments                           226              (2,196)                  4
        Cumulative effect of accounting change                                         --               2,377                  --
     CHANGES IN ASSETS AND LIABILITIES:
        (Increase) decrease in receivables, net                                   (27,712)               (739)             12,536
        (Increase) decrease in inventories, net                                    10,261             (12,082)             (3,638)
        (Increase) decrease in other current assets                                    --                 115               5,215
        (Increase) decrease in other non-current assets                             2,085              (8,878)                169
        Decrease in accounts payable and accrued expenses                          (9,318)             (4,687)            (10,929)
        Increase (decrease) in deferred revenue                                     1,360               7,558             (22,609)
        Increase (decrease) in other liabilities                                   (2,954)                942               2,761
                                                                             ------------        ------------        ------------
        NET CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES                        14,521                (734)              9,591
                                                                             ------------        ------------        ------------

CASH FLOWS FROM INVESTING ACTIVITIES:
  Capital expenditures                                                            (39,844)            (17,265)            (29,939)
  Proceeds from sales of assets, net                                                9,518                 293                  --
  Purchases of available-for-sale investment securities                            (5,623)            (61,685)            (35,731)
  Sales of available-for-sale investment securities                                11,041              49,168              42,255
  Maturities of available-for-sale investment securities                            8,220               8,100               7,789
  Investments in and advances to affiliates                                       (23,458)            (20,201)            (15,208)
  Payment for business acquisition                                                     --                  --             (45,063)
                                                                             ------------        ------------        ------------
     NET CASH USED IN INVESTING ACTIVITIES                                        (40,146)            (41,590)            (75,897)
                                                                             ------------        ------------        ------------

CASH FLOWS FROM FINANCING ACTIVITIES:
  Short-term borrowings net of (repayments)                                        26,200             (17,483)              9,405
  Principal payments on long-term obligations                                      (7,502)             (5,749)             (1,883)
  Net proceeds from issuance of long-term obligations                                  --              20,000              28,730
  Fees associated with conversion of debentures                                    (2,571)                 --                  --
  Net proceeds from issuances of common stock                                      22,429              34,246               1,753
  Adjustment to recast pooled company's year end                                       --              (1,047)             (1,138)
                                                                             ------------        ------------        ------------
     NET CASH PROVIDED BY FINANCING ACTIVITIES                                     38,556              29,967              36,867
                                                                             ------------        ------------        ------------


EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS                         (325)               (245)               (776)
                                                                              ------------        ------------        ------------

NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS                               12,606             (12,602)            (30,215)

CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD                                     15,317              27,919              58,134
                                                                             ------------        ------------        ------------
CASH AND CASH EQUIVALENTS, END OF PERIOD                                     $     27,923        $     15,317        $     27,919
                                                                             ============        ============        ============
</TABLE>

See accompanying notes to consolidated financial statements.



                                       23
<PAGE>   27


NOTES TO CONSOLIDATED FINANCIAL STATEMENTS DECEMBER 31, 1996, 1995 AND 1994

1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

        Orbital Sciences Corporation (together with its subsidiaries, "Orbital"
or the "company"), a Delaware corporation, is an international space and
information systems company that designs, manufactures, operates and markets a
broad range of affordable space and ground infrastructure systems, satellite
access products and satellite-delivered services. Space and ground
infrastructure systems include launch vehicles, satellites, electronics and
sensors, and satellite ground systems and software; satellite access products
include satellite navigation and communications products; and
satellite-delivered services include global messaging and remote imaging
services. Disaggregated financial information is presented in Note 2.

PREPARATION OF CONSOLIDATED FINANCIAL STATEMENTS

        Certain reclassifications have been made to the 1995 and 1994 financial
statements to conform to the 1996 financial statement presentation. All
financial amounts are stated in U.S. dollars unless otherwise
indicated.

        The preparation of consolidated financial statements in conformity with
generally accepted accounting principles requires management to make estimates
and assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the consolidated
financial statements and the reported amounts of revenues and expenses during
the reporting period. Actual results could differ from those estimates.

PRINCIPLES OF CONSOLIDATION

        The consolidated financial statements include the accounts of Orbital,
all wholly and partially owned subsidiaries controlled by Orbital, and
partnerships in which Orbital directly or indirectly controls the general
partner interests. All material transactions and accounts among consolidated
entities have been eliminated in consolidation.

REVENUE RECOGNITION

        Orbital recognizes revenues on long-term infrastructure contracts using
the percentage of completion method of accounting. Accordingly, (i) revenues on
cost-plus-fee contracts are recognized to the extent of costs incurred plus a
proportionate amount of fee earned, and (ii) revenues on long-term fixed-price
contracts are recognized based on costs incurred in relation to total estimated
costs, or based on specific delivery terms and conditions. To the extent that
estimated costs of completion are adjusted, revenue and profit recognized from a
particular contract will be affected in the period of the adjustment.
Anticipated contract losses are recognized as they become known.

        Revenues from sales of access products and satellite services are
generally recognized when the product is shipped or the service is performed.

FOREIGN CURRENCY

        Orbital's foreign operating entities are in a number of countries and
deal in a number of foreign currencies. The financial results of foreign
operations are translated to U.S. dollars using the current exchange rates for
assets and liabilities and using weighted average exchange rates for revenues,
expenses, gains and losses.

        Translation gains and losses relating to foreign operations that are
self-contained and integrated within a particular country or economic
environment, and therefore are not dependent on the U.S. dollar, are recognized
as a separate component of stockholders' equity until there is a realized
reduction in Orbital's net investment in the foreign operation. Translation
losses in 1996, 1995 and 1994 were approximately $325,000, $245,000 and
$776,000, respectively. Translation gains and losses relating to foreign
operations that are a direct and integral component or extension of Orbital's
domestic operations, and therefore are dependent on the U.S. dollar, are
reported currently as a component of net income.


                                       24
<PAGE>   28

        Orbital enters into forward exchange contracts to hedge against foreign
currency fluctuations on certain receivables and payables. Gains and losses on
contracts to hedge specific foreign currency commitments are deferred and
accounted for as part of the underlying transaction.

RESEARCH AND DEVELOPMENT

        Research and development expenses include self-funded product
development activities, exclude direct customer-funded development and are
expensed as incurred. Research and development expenses are allocated, when
appropriate, to U.S. Government contracts under government-mandated cost
accounting standards. In 1995, Orbital expensed $3,000,000 of costs related to
the termination of a reusable launch vehicle development program. Such costs are
included as research and development expenses.

DEPRECIATION, AMORTIZATION AND RECOVERABILITY OF LONG-LIVED ASSETS

Depreciation and amortization are provided using the straight-line method as
follows:

Buildings                                       18 to 20 years
Machinery, Equipment
   and Software                                 3 to 10 years
Satellite Systems                               Estimated useful
                                                    life of satellite
Leasehold Improvements                          Shorter of estimated useful
                                                    life or lease term

        In 1995, the company adopted the provisions of the Financial Accounting
Standards Board's Statement of Financial Accounting Standards No. 121,
"Accounting for the Impairment of Long-Lived Assets and for Long-Lived Assets to
be Disposed Of" ("SFAS 121"), which (i) requires that long-lived assets "to be
held and used" be reviewed for impairment whenever events or changes in
circumstances indicate that the carrying amount of an asset may not be
recoverable, (ii) requires that long-lived assets "to be disposed of" be
reported at the lower of carrying amount or fair value less cost to sell and
(iii) provides guidelines and procedures for measuring an impairment loss that
are significantly different from previous guidelines and procedures. The
cumulative effect of adopting SFAS 121 on prior years' earnings, related to the
impairment in the carrying amount of certain assets to be disposed of that
supported Orbital's orbit transfer vehicle product line, was approximately
$2,377,000, net of tax benefit of $1,783,000, and is reported in the 1995
consolidated statement of operations. The effect of adopting SFAS 121 on income
from continuing operations for 1996 and 1995 was not material.

        Orbital's policy is to review its long-lived assets, including
investments in affiliates, specialized equipment used to support specific
space-related products and satellite systems, for impairment whenever events or
changes in circumstances indicate that the carrying amount of an asset may not
be recoverable. The company recognizes an impairment loss when the sum of
expected future cash flows is less than the carrying amount of the asset. Given
the inherent technical and commercial risks within the space industry, it is
reasonably possible that the company's current estimate that it will recover the
carrying amount of its long-lived assets from future operations may change.

INCOME TAXES

        The company recognizes income taxes using the asset and liability
method. Under the asset and liability method, deferred tax assets and
liabilities are recognized for the future tax consequences attributable to
differences between the financial statement carrying amounts of existing assets
and liabilities and their respective tax bases. Deferred tax assets and
liabilities are measured using enacted tax rates expected to apply to taxable
income in the years in which those temporary differences are expected to be
recovered or settled. The effect on deferred tax assets and liabilities of a
change in tax rates is recognized as income in the period that includes the
enactment date.

STOCK-BASED COMPENSATION

        Prior to January 1, 1996, the company accounted for its stock option
plans in accordance with the provisions of Accounting Principles Board Opinion
No. 25, "Accounting for Stock Issued to Employees" ("APB 25"), and related


                                       25
<PAGE>   29

interpretations. Pursuant to APB 25, compensation expense is recorded only to
the extent that the current market price of the underlying stock exceeded the
exercise price on the date of grant. On January 1, 1996, the company adopted
Statement of Financial Accounting Standards No. 123, "Accounting for Stock-Based
Compensation" ("SFAS 123"), which requires companies to (i) recognize as expense
the fair value of all stock-based awards on the date of grant, or (ii) continue
to apply the provisions of APB 25 and provide pro forma net income and pro forma
earnings per share disclosures for employee stock option grants made in 1995 and
future years as if the fair-value-based method defined in SFAS 123 had been
applied. The company has elected to continue to apply the provisions of APB 25
and provide the pro forma disclosure provisions of SFAS 123 (See Note 13).

INCOME (LOSS) PER SHARE

        Income (loss) per common and common equivalent share is calculated using
the weighted average number of common shares (including the Exchangeable Shares
(See Note 4)) and common equivalent shares, to the extent dilutive, outstanding
during the periods. Income (loss) per common share assuming full dilution is
calculated using the weighted average number of common shares (including the
Exchangeable Shares) and common equivalent shares outstanding during the
periods, plus the effects of an assumed conversion of the company's Convertible
Debentures, after giving effect to all net income adjustments that would result
from the assumed conversion. The Convertible Debentures were converted to
Orbital common shares on August 14, 1996 (See Note 10). Any reduction of less
than 3% in the aggregate has not been considered dilutive in the calculation and
presentation of income (loss) per common share assuming full dilution. Common
equivalent shares are comprised solely of stock options (See Note 13). Since the
Exchangeable Shares have voting and economic rights identical to Orbital common
shares, the Exchangeable Shares have been included as common shares in the
accompanying consolidated balance sheets.

CASH AND CASH EQUIVALENTS AND SHORT-TERM INVESTMENTS

        Orbital considers all highly liquid investments with original maturities
of three months or less to be cash equivalents. Investments in securities that
do not meet the definition of cash equivalents are classified as short-term
investments. Since Orbital does not intend to hold its investments in debt and
equity securities until maturity and does not actively trade the securities to
maximize trading gains, Orbital classifies these securities as
"available-for-sale" and, accordingly, reports such securities at fair value
plus accrued interest. Any temporary excess (deficiency) of market value over
(under) the underlying cost of the short-term investment is excluded from
current period earnings and is reported as unrealized gains (losses) as a
separate component of stockholders' equity.

        At December 31, 1996 and 1995, the company had approximately $11,604,000
and $10,700,000, respectively, of cash restricted in support of outstanding
letters of credit.

INVENTORIES

        Inventories consist of components and raw materials inventory,
work-in-process inventory and finished goods inventory and are generally stated
at the lower of cost or net realizable value on a first-in, first-out ("FIFO")
or specific identification basis. Inventories, net of allowances for
obsolescence of $5,100,000 and $3,800,000 in 1996 and 1995, respectively,
consisted of the following:

<TABLE>
<CAPTION>
                                                   DECEMBER 31,
            (IN THOUSANDS)                    1996              1995
 ------------------------------------   ----------------  ----------
<S>                                     <C>                <C>
Components and raw materials               $   19,090        $   17,756
Work-in-process                                 6,962            19,430
Finished goods                                  1,107             1,341
                                           ----------        ----------
    Total                                  $   27,159        $   38,527
                                           ==========        ==========
</TABLE>

        Components and raw materials are purchased to support future production
efforts. Work-in-process inventory consists primarily of (i) costs incurred
under long-term fixed-price contracts accounted for using the
percentage-of-completion method of accounting applied on a units of delivery
basis, and (ii) partially assembled commercial products, and generally includes
direct production costs and certain allocated indirect costs (including an
allocation of general and administrative costs). Work-in-process inventory has
been reduced by contractual progress payments received of $26,696,000 and
$2,631,000 at December 31, 1996 and 1995, respectively. Finished goods inventory
consists of fully assembled commercial products awaiting shipment.




                                       26
<PAGE>   30


SELF-CONSTRUCTED ASSETS AND INTERNALLY DEVELOPED SOFTWARE

        The company self-constructs much of its ground and airborne support and
special test equipment used in the manufacture, production and delivery of many
of its infrastructure products. Orbital also builds and operates satellite
systems used in providing commercial services. Orbital capitalizes certain costs
incurred in constructing ground and airborne support and special test equipment
and satellite systems. Capitalized costs generally include direct construction
costs and certain allocated indirect costs, and exclude general and
administrative and research and development costs.

        The company also capitalizes certain internal costs incurred in
developing software to be used to support various programs and/or products.
Capitalized costs generally include direct software coding costs and certain
allocated indirect costs, and exclude general and administrative and research
and development costs. Amortization of capitalized costs begins when the
software systems are placed in service. No amortization expense is included in
the accompanying consolidated statements of operations as such software systems
have not yet been placed in service.

INVESTMENTS IN AFFILIATES

        The company uses the equity method of accounting for its investments in
and earnings of affiliates in which the company has the ability to significantly
influence, but not control, such affiliate's operations. In accordance with the
equity method of accounting, the company's carrying amount of an investment in
an affiliate is initially recorded at cost and is increased to reflect its share
of the affiliate's income and is reduced to reflect its share of the affiliate's
losses. Orbital's investment is also increased to reflect contributions to, and
decreased to reflect distributions received from, the affiliate. Any excess of
the amount of Orbital's investment over the amount of the underlying equity in
each affiliate's net assets is amortized in a manner similar to goodwill. The
company capitalizes interest costs on equity method investments when such
affiliate has significant assets under construction and has not yet commenced
principal operations. During 1996 and 1995, the company capitalized interest on
investments in affiliates of approximately $6,890,000 and $5,414,000,
respectively. The company uses the cost method of accounting for investments in
affiliates in which it cannot control or significantly influence operations.

        The company provides a valuation allowance against an investment in an
affiliate when it is determined that recovery of all or part of the investment
is not probable. At December 31, 1996 and 1995, approximately $1,100,000 of
allowance had been provided to fully reserve certain investments in affiliates.
Approximately $2,000,000 of gain on the sale of an investment was realized in
1995 when Orbital sold one such investment. The gain was reported in net
investment income in the 1995 consolidated statement of operations. No such
gains from sales of investments were realized in 1996 or 1994.

EXCESS OF PURCHASE PRICE OVER NET ASSETS ACQUIRED

        The company amortizes the excess of purchase price over net assets
acquired related to prior business combinations on a straight-line basis over
their estimated useful life, generally 20-40 years. Orbital periodically
assesses and evaluates the recoverability of such assets based on current facts
and circumstances and the operational viability of its acquired businesses. The
company recognizes an impairment loss when the sum of expected future cash flows
is less than the carrying amount of the asset.

WARRANTIES

        The company occasionally accepts warranty clauses in its commercial and
government long-term contracts. In the event the company does not purchase
insurance coverage to protect itself in connection with such warranty clauses,
the company records a liability for warranty claims when it determines that a
specific material liability exists. Orbital has not recorded any liability for
potential warranty claims on its existing contracts because these expenses, if
any, are not expected to have a material adverse effect on the company's
financial condition or results of operations.

        The company at times provides limited warranties on certain commercial
products and accrues an estimate of expected warranty costs based on historical
experience.



                                       27
<PAGE>   31




1A.  RESTATEMENTS

     Management has determined to restate its previously issued consolidated
financial statements as of and for the years ended December 31, 1996 and 1995
with respect to its accounting treatment for the matters described below. The
following table summarizes the various adjustments by financial statement line
item for 1996 and 1995. The impact of these matters on the unaudited interim
financial results for 1996 and 1995 is summarized in Note 14.

<TABLE>
<CAPTION>
                                                                             Consolidated Statements of Operations
                                                                             (In thousands, except per share data)
                                                                               For The Years Ended December 31,
                                                              ------------------------------------------------------------------
                                                                                            1996
                                                              ------------------------------------------------------------------
                                                                  As
                                                              Previously
                                                               Reported        Adjustments                      Restated
                                                               --------        -----------                      --------
<S>                                                           <C>              <C>           <C>                <C>
Revenues                                                      $  461,435       $  (11,648)   (c) (d) (e) (f)    $  449,787
Costs of goods sold                                              336,261           (3,680)   (c) (e) (f)           332,581
Research and development expenses                                 22,179              889    (c) (e)                23,068
Selling, general and administrative expenses                      76,019            1,228                           77,247
Net investment income (expense)                                   (1,123)           1,074    (a) (f)                   (49)
Equity in earnings (losses) of affiliates                         (6,454)            (554)   (b) (f)                (7,008)
Provisions for income taxes                                        1,831           (1,620)   (d)                       211
Extraordinary item - gain on sales of assets, net of tax              --            1,980    (d)                     1,980
Net income (loss)                                                 15,907                                             9,942
Net income (loss) per common share, basic and assuming full
  dilution                                                          0.55                                              0.34

<CAPTION>
                                                              ------------------------------------------------------------------
                                                                                            1995
                                                              ------------------------------------------------------------------
                                                                   As
                                                               Previously
                                                                Reported       Adjustments                 Restated
                                                                --------       -----------
<S>                                                            <C>             <C>            <C>         <C>
Revenues                                                       $  364,320      $  (4,480)      (c) (f)     $  359,840
Costs of goods sold                                               268,016          3,130       (c) (f)        271,146
Research and development expenses                                  28,512             46       (c)             28,558
Selling, general and administrative expenses                       63,427            743       (f)             64,170
Net investment income (expense)                                       639            492       (a) (f)          1,131
Equity in earnings (losses) of affiliates                            (759)           115       (f)               (644)
Provisions (benefit) for income taxes                              (1,302)        (5,267)      (f)             (6,569)
Net income (loss)                                                  (4,848)                                     (5,590)
Net income (loss) per common share, basic and assuming full
  dilution                                                          (0.19)                                      (0.21)
</TABLE>



                                       28
<PAGE>   32



<TABLE>
<CAPTION>

                           CONSOLIDATED BALANCE SHEETS
                                 (In thousands)

                                                                         12/31/96
                                                                            As                                           12/31/96
                                                                        Previously                                          As
                                                                         Reported        Adjustments                     Restated
                                                                         --------        -----------                     --------
<S>                                                                   <C>               <C>              <C>           <C>
Cash and cash equivalents                                                 $  26,859          $  1,064                   $  27,923
Receivables, net                                                            144,774            (3,801)   (c)              140,973

Deferred income taxes and other current assets                                6,475              (523)                      5,952
Property, plant and equipment, net                                          127,862              (974)   (a) (c) (g)      126,888
Investments in affiliates, net                                               86,524             1,870    (a)               88,394
Deferred income taxes and other assets                                        9,720             7,265                      16,985
Short-term borrowings and current portion of long-term
   obligations                                                               38,519               450    (g)               38,969
Accounts payable                                                             25,789               822                      26,611
Accrued expenses                                                             32,372             7,647                      40,019
Deferred revenues                                                            30,741               439    (b)               31,180
Long-term obligations                                                        33,076             2,250    (g)               35,326
Retained earnings                                                            10,255            (6,707)                      3,548
</TABLE>


<TABLE>
<CAPTION>
                                                                           12/31/95
                                                                              As                                           12/31/95
                                                                           Previously                                          As
                                                                           Reported        Adjustments                     Restated
                                                                           --------        -----------                     --------
<S>                                                                   <C>                   <C>          <C>           <C>
Receivables, net                                                         $  118,358         $  (1,597)   (c) (g)       $  116,761
Deferred taxes and other current assets                                       7,330              (444)   (g)                6,886
Property, plant and equipment, net                                          105,875                26    (a) (c)          105,901
Investments in affiliates, net                                               74,063               957    (a) (g)           75,020
Deferred income taxes and other assets                                       12,330             7,050    (g)               19,380
Accrued expenses                                                             41,474             6,641    (g)               48,115
Accumulated deficit                                                          (5,652)             (742)                      (6,394)

</TABLE>

Equity Method Accounting Restatement Adjustments

        The company uses the equity method of accounting for its investments in
affiliates' in which the company has the ability to significantly influence, but
not control, such affiliates' operations. Accordingly, Orbital uses the equity
method of accounting for its investment in ORBCOMM Global, L.P. ("ORBCOMM") or
("ORBCOMM Global").

      (a)   Previously, the company's consolidated financial statements
            reflected the company's capitalization of interest expense on
            various assets, including on its equity investment in ORBCOMM. As
            reflected in the restated consolidated financial statements
            presented herein, Orbital has revised the capitalization of interest
            on certain assets including its equity method investment in ORBCOMM.
            These revisions include the compounding impact of interest, and the
            reduction of eligible investment amounts for losses recognized for
            equity method investors. These revisions had the effect of
            decreasing interest expense in 1996 and 1995 by $952,000 and
            $985,000, respectively.


                                       29
<PAGE>   33


      (b)   Previously, the company's consolidated financial statements did not
            reflect the amortization of previously deferred profits in
            connection with its sales of both satellites and ground stations to
            ORBCOMM. As reflected in the restated consolidated financial
            statements presented herein, Orbital is amortizing such deferred
            profits over the estimated lives of both the satellites and the
            ground stations. This revision had the effect of increasing the
            company's equity in losses of affiliates by approximately $439,000
            in 1996.

      Asset Restatement Adjustments

      (c)   The company has historically capitalized certain costs associated
            with certain product enhancements. Previously, the company's
            consolidated financial statements reflected such costs as
            capitalized assets. As reflected in the restated consolidated
            financial statements presented herein, the company has expensed all
            previously capitalized enhancement costs. These revisions resulted
            in an increase (decrease) in research and development expenses,
            costs of goods sold and revenues for 1996 of $1,338,000, ($204,000)
            and ($4,791,000), respectively, and for 1995 of $46,000, $10,000 and
            ($1,257,000), respectively.

      Other Restatement and Reclassification Adjustments

      (d)   In October 1996, the company sold substantially all the assets of
            PSC Communications Group, Inc. resulting in a gain of approximately
            $3,600,000. The gain which was previously reported in revenue has
            been reclassified as an extraordinary gain of $1,980,000, net of
            taxes of $1,620,000.

      (e)   The 1996 statement of operations has been reclassified to decrease
            revenues by $4,464,000 and to decrease cost of goods sold and
            research and development expenses by $4,014,000 and $450,000,
            respectively, to reflect changes in certain contingent liabilities.

      (f)   Certain other reclassification adjustments were made to the 1996 and
            1995 statements of operations that resulted in increases (decreases)
            to revenues, cost of goods sold, selling, general and administrative
            expenses, net investment income (expense), equity in earnings
            (losses) of affiliates and provision (benefit) for income taxes for
            1996 of $1,207,000, ($538,000), $0, $89,000, ($115,000) and $0 and
            for 1995 of ($3,223,000), $3,120,000, $743,000, $493,000, $115,000
            and $7,050,000, respectively. The tax benefit of $1,783,000 was also
            netted against the cumulative effect of the accounting change with a
            corresponding decrease in the benefit for income taxes in 1995.

      (g)   Property, plant and equipment increased by $2,700,000 and short-term
            and long-term obligations increased by $450,000 and $2,250,000,
            respectively, as a result of recording certain capital leases for
            equipment in 1996 that had been previously accounted for as
            operating leases.

            As reflected in the restated consolidated financial statements, the
            company has recorded certain other adjustments, the net effect of
            which is presented in the table. None of these entries is
            significant individually or in the aggregate.

2. DISAGGREGATED FINANCIAL INFORMATION

INDUSTRY SEGMENT INFORMATION

        Orbital's operations have been classified into three industry segments,
"Space and Ground Infrastructure Systems," "Satellite Access Products" and
"Satellite-Delivered Services." Space and Ground Infrastructure Systems include:
launch vehicles, including space and suborbital launch vehicles and reusable
launch vehicles; satellites and other space systems; electronics and sensors,
including space sensors and instruments, as well as avionics and other
electronics equipment; and ground systems and software, including satellite
ground systems and various software products. Satellite Access Products include
satellite navigation and communications products. Satellite-Delivered Services
include satellite-based global data communications services and satellite-based
remote imaging services.




                                       30
<PAGE>   34


        The following table presents revenues, operating income (loss),
identifiable assets, capital expenditures, depreciation and amortization and
impairment losses by industry segment for 1996, 1995 and 1994. Operating income
(loss) is total revenues less costs of goods sold, research and development
expenses, selling, general and administrative expenses and amortization of
goodwill. Identifiable assets are those assets used in the operations of each
industry segment. There were no significant intersegment sales or transfers
during 1996, 1995 and 1994.

<TABLE>
<CAPTION>
                                                                  YEARS ENDED DECEMBER 31,
                 (IN THOUSANDS)                         1996                1995                1994
 ----------------------------------------------  -----------------   -----------------   ----------------
SPACE AND GROUND                                     (RESTATED)          (RESTATED)
<S>                                                <C>                 <C>                 <C>
  INFRASTRUCTURE SYSTEMS:
  Revenues                                          $    377,166        $    296,109        $    252,905
  Operating income (loss)                                 16,291              (5,816)             12,554
  Identifiable assets                                    369,672             363,749             353,430
  Capital expenditures                                    23,829              15,091              27,322
  Depreciation and amortization                           21,954              21,150              16,150
  Impairment losses, net of taxes                             --               2,377                  --

SATELLITE ACCESS PRODUCTS:
  Revenues                                          $     71,188        $     52,531        $     38,517
  Operating income                                         4,902               3,291               3,801
  Identifiable assets                                     32,376              27,431              22,387
  Capital expenditures                                     3,402               1,204                 708
  Depreciation and amortization                              944                 532                 581

SATELLITE-DELIVERED SERVICES:
  Revenues                                          $      1,433        $     11,200        $     10,154
  Operating loss                                          (7,436)             (4,730)             (3,980)
  Equity in earnings (losses) of affiliates               (7,008)               (644)             (1,264)
  Non-controlling interest in (earnings)
    losses of consolidated subsidiaries                    1,473                 427                  --
  Identifiable assets                                    107,565              81,720              65,225
  Capital expenditures                                    12,613                 970               1,909
  Depreciation and amortization                            2,198                 547                 467

CONSOLIDATED:
  Revenues                                          $    449,787        $    359,840        $    301,576
  Operating income (loss)                                 13,757              (7,255)             12,375
  Equity in earnings (losses) of affiliates               (7,008)               (644)             (1,264)
  Non-controlling interest in (earnings)
    losses of consolidated subsidiaries                    1,473                 427                  --
  Identifiable assets                                    509,613             472,900             441,042
  Capital expenditures                                    39,844              17,265              29,939
  Depreciation and amortization                           25,096              22,229              17,198
  Impairment losses, net of taxes                             --               2,377                  --
</TABLE>

DOMESTIC AND NON-U.S. OPERATIONS

The following table presents Orbital's revenues, operating income (loss) and
identifiable assets by major operating location:

<TABLE>
<CAPTION>
                                                           YEARS ENDED DECEMBER 31,
             (IN THOUSANDS)                       1996               1995                1994
 ---------------------------------------   -----------------  -----------------   ---------------
REVENUES:                                     (RESTATED)          (RESTATED)
<S>                                         <C>               <C>                   <C>
  United States                               $    380,482       $    286,434        $    221,946
  Canada and Mexico                                 65,350             68,997              74,408
  United Kingdom and other                           3,955              4,409               5,222
                                           ---------------    ---------------     ---------------
    TOTAL                                     $    449,787       $    359,840        $    301,576
                                           ===============    ===============     ===============
OPERATING INCOME (LOSS):
  United States                               $     11,098       $    (10,476)       $      9,662
  Canada and Mexico                                  2,416              3,628               2,796
  United Kingdom and other                             243               (407)                (83)
                                           ---------------    ----------------    ----------------
    TOTAL                                     $     13,757       $     (7,255)       $     12,375
                                           ===============    ================    ===============
IDENTIFIABLE ASSETS:
  United States                               $    459,237       $    426,313        $    396,228
  Canada and Mexico                                 46,984             44,048              42,302
  United Kingdom and other                           3,392              2,539               2,512
                                              ------------       ------------        ------------
    Total                                     $    509,613       $    472,900        $    441,042
                                           ===============    ===============     ===============
</TABLE>


                                       31
<PAGE>   35


MAJOR CUSTOMERS AND EXPORT SALES

        Orbital's sales by geographic area are as follow:

<TABLE>
<CAPTION>
                                              YEARS ENDED DECEMBER 31,
       (IN THOUSANDS)             1996               1995                1994
 ----------------------    -----------------  -----------------   ----------------
                              (RESTATED)          (RESTATED)
<S>                         <C>                  <C>               <C>
United States                 $   337,917        $   271,227        $   213,606
Canada                             46,742             45,558             46,839
Europe                             33,752             23,594             24,468
Far East                           17,517             15,242             13,998
Middle East and other              13,859              4,219              2,665
                              -----------        -----------        -----------
  Total                       $   449,787        $   359,840        $   301,576
                              ===========        ===========        ===========
</TABLE>

        Approximately 45%, 40% and 45% of the company's revenues in 1996, 1995
and 1994, respectively, were generated under contracts with the U.S. Government
and its agencies or under subcontracts with the U.S. Government's prime
contractors.

3. INVESTMENTS IN AFFILIATES

ORBCOMM PARTNERSHIPS

        In 1993, the company's majority owned subsidiary, Orbital Communications
Corporation ("OCC"), and Teleglobe Mobile Partners ("Teleglobe Mobile"), an
affiliate of Teleglobe Inc., formed a partnership, ORBCOMM Global, for the
design, development, construction, integration,testing and operation of a
low-Earth orbit satellite communications system (the "ORBCOMM System"). OCC and
Teleglobe Mobile are each 50% general partners in ORBCOMM Global. OCC and
Teleglobe Mobile have contributed approximately $75,275,000 and $84,525,000,
respectively, through December 31, 1996.

        Additionally, OCC is a 2% general partner in ORBCOMM USA, L.P. ("ORBCOMM
USA") and Teleglobe Mobile is a 2% general partner in ORBCOMM International
Partners, L.P. ("ORBCOMM International"), two partnerships formed to market the
ORBCOMM System. ORBCOMM Global is a 98% general partner in each of the two
marketing partnerships.

        Pursuant to the terms of the partnership agreements, (i) OCC and
Teleglobe Mobile share equal responsibility for the operational and financial
affairs of ORBCOMM Global; (ii) OCC controls the operational and financial
affairs of ORBCOMM USA; and (iii) Teleglobe Mobile controls the operational and
financial affairs of ORBCOMM International. Since OCC is unable to control, but
is able to exercise significant influence over, ORBCOMM Global's and ORBCOMM
International's operating and financial policies, the company is accounting for
its investments in ORBCOMM Global and ORBCOMM International using the equity
method of accounting. Since OCC is able to control the operational and financial
affairs of ORBCOMM USA, the company consolidates the accounts of ORBCOMM USA.

        Orbital is the primary supplier of the communications satellites, launch
vehicles and certain ground systems to ORBCOMM Global, and successfully launched
the first two ORBCOMM System satellites in April 1995. During 1996, 1995 and
1994, Orbital recorded contract revenues on sales to ORBCOMM Global of
approximately $47,215,000, $49,187,000 and $30,048,000, respectively, and
eliminated as equity in earnings (losses) of affiliates 50% of its profits on
those sales since ORBCOMM Global is capitalizing substantially all its purchases
from Orbital. At December 31, 1996 and 1995, Orbital had approximately
$3,400,000 and $8,900,000, respectively, in receivables from ORBCOMM Global.
Additionally, since 1995 Orbital has provided certain administrative services to
ORBCOMM Global, ORBCOMM USA and ORBCOMM International, such as facility space,
utilities, administrative supplies and certain other administrative services.
During 1996 and 1995, Orbital received payments of approximately $1,295,000 and
$297,000, respectively, for such services.

        At December 31, 1996, ORBCOMM Global had total assets, total liabilities
and total partners' capital of $329,509,000, $191,568,000 and $137,941,000,
respectively. ORBCOMM Global recorded approximately $420,000 in revenues and
$19,480,000 in losses for the year ended December 31, 1996.


                                       32
<PAGE>   36


        Based on its current assessment of the overall business prospects of the
ORBCOMM partnerships and the ORBCOMM System, the company currently believes its
investment in ORBCOMM Global is fully recoverable. If in the future, the ORBCOMM
business is not successful, the company may be required to expense part or all
of its investment.

RADARSAT INTERNATIONAL INC.

        The company owns an approximate 25% equity interest in Radarsat
International Inc. ("RSI"), a Canadian-based company specializing in
satellite-based remote imaging. RSI successfully launched its first remote
imaging satellite in November 1995 and began generating revenues in 1996.
Orbital is accounting for its investment in RSI using the equity method of
accounting.

EARTHWATCH, INCORPORATED

        The company owns an approximate one percent equity interest in
EarthWatch, Incorporated, a U.S.-based company developing high-resolution
commercial satellite imaging services. Orbital accounts for this investment
using the cost method of accounting.

4. BUSINESS COMBINATIONS

PURCHASE TRANSACTIONS

        On August 11, 1994, the company acquired all the outstanding common
stock of Fairchild Space and Defense Corporation ("Fairchild") from Matra
Aerospace, Inc. (the "Fairchild Acquisition"). As a result of the Fairchild
Acquisition, the company expanded its satellites, electronics and related
product lines and technology and production capabilities.

        The Fairchild Acquisition has been accounted for using the purchase
method of accounting and, accordingly, the purchase price of approximately
$71,000,000 (consisting of 2,424,242 shares of the company's Common Stock,
$40,000,000 in cash and approximately $800,000 in transaction expenses) was
allocated to assets and liabilities acquired based on estimates of fair values
as of the date of acquisition. The excess of purchase price over net assets
acquired is being amortized on a straight-line basis over 40 years. Fairchild's
results of operations for the 19-week period ended December 31, 1994 are
included in Orbital's 1994 consolidated results of operations.

        In October 1996, the company's wholly-owned subsidiary, MacDonald
Dettwiler and Associates ("MDA") sold substantially all the assets of The PSC
Communications Group Inc. for approximately $13,000,000, resulting in a gain of
approximately $3,600,000. The gain on sale of $1,980,000, net of tax, has been
recorded as an extraordinary item since the assets were acquired through the
acquisition of MDA in 1995, which was accounted for as a pooling of interests.

POOLING OF INTERESTS TRANSACTIONS

        On December 28, 1994, the company acquired all the outstanding common
stock of Magellan Corporation ("Magellan") from Magellan's former shareholders
in a tax-free merger (the "Magellan Acquisition"). As a result of the Magellan
Acquisition, Orbital develops, manufactures, markets and sells global
satellite-based navigation and communications access products for consumer and
industrial markets worldwide.

        The Magellan Acquisition was consummated by exchanging 2,640,441 shares
of the company's Common Stock for all of Magellan's outstanding common stock.
The company also granted 409,556 options to acquire Orbital Common Stock to
Magellan employees who, at the date of the acquisition, held options to acquire
Magellan common stock. The Magellan Acquisition is accounted for using the
pooling of interests method of accounting and, accordingly, Orbital's historical
consolidated financial statements have been restated to include Magellan's
financial position, results of operations and cash flows. Merger expenses
relating to the Magellan Acquisition of approximately $500,000 were charged to
earnings during the three months ended December 31, 1994 and are included in
acquisition expenses in the accompanying 1994 consolidated statement of
operations.



                                       33
<PAGE>   37


        Prior to the acquisition, Magellan's financial results were prepared on
a June 30 fiscal year basis. Orbital's consolidated financial statements for the
year ended December 31, 1994 include Magellan's financial results for the
twelve-month period ended December 31, 1994. The effect of recasting Magellan's
year end for 1994 has been charged to Orbital's retained earnings as of January
1, 1994. The charge to retained earnings eliminated the effect of including
Magellan's results of operations for the six-month period ended June 30, 1994 of
$1,138,000 in Orbital's 1994 consolidated results of operations. Magellan's
revenues for the same six-month period were approximately $18,500,000.

        On November 17, 1995, the company acquired all the outstanding common
shares of MacDonald, Dettwiler and Associates, Ltd. ("MDA") from MDA's former
shareholders in a merger designed to be tax free to MDA's Canadian shareholders
(the "MDA Acquisition"). As a result of the MDA Acquisition, Orbital is a
leading supplier of commercial satellite imaging ground systems capable of
handling all major optical and radar imaging satellites. Orbital also provides
advanced space-qualified software, air traffic control systems and defense
electronics products through MDA.

        Pursuant to the terms of the MDA Acquisition, a newly established,
wholly owned Canadian subsidiary of Orbital ("Acquisition Subsidiary") issued
exchangeable shares (the "Exchangeable Shares") in exchange for all the issued
and outstanding MDA common shares. The Exchangeable Shares have voting and
economic rights with respect to Orbital identical to Orbital Common Stock and
are exchangeable into Orbital Common Stock at the option of the holders. As part
of the MDA Acquisition, Acquisition Subsidiary also issued 10,000 shares of
Class B Preferred Stock to a financial advisor in satisfaction of a portion of
the fees owed to that advisor. Additionally, Orbital issued one share of Series
A Special Voting Preferred Stock to a voting trust to act as a voting trustee on
behalf of the holders of the Exchangeable Shares. The Orbital Series A Special
Voting Preferred Stock has voting rights, privileges and preferences required to
secure the voting rights relating to the Orbital Common Stock granted for the
benefit of the holders of the Exchangeable Shares.

        The MDA Acquisition was consummated by issuing 4,087,126 Exchangeable
Shares for all of MDA's outstanding common shares. The company also granted
328,399 options to acquire Orbital Common Stock to MDA employees who, at the
date of the acquisition, held options to acquire MDA common shares. The MDA
Acquisition is accounted for using the pooling of interests method of accounting
and, accordingly, Orbital's historical consolidated financial statements have
been restated to include MDA's financial position, results of operations and
cash flows. Merger expenses relating to the MDA Acquisition of approximately
$3,400,000 were charged to earnings during the three months ended December 31,
1995 and are included in acquisition expenses in the accompanying 1995
consolidated statement of operations.

        Prior to the acquisition, MDA's financial results were prepared on a
March 31 fiscal year basis. Orbital's restated financial statements for 1994
include MDA's historical financial results for its fiscal year ended March 31,
1995. Orbital's consolidated financial statements for the year ended December
31, 1995 include MDA's financial results for the twelve-month period ended
December 31, 1995. The effect of recasting MDA's year end for 1995 has been
charged to Orbital's retained earnings as of January 1, 1995. The charge to
retained earnings eliminated the effect of including MDA's results of operations
for the three-month period ended March 31, 1995 of $1,047,000 in Orbital's 1995
and 1994 consolidated results of operations. MDA's revenues for the same
three-month period were approximately $20,634,000.

5. SHORT-TERM INVESTMENTS

        The following table sets forth the aggregate amortized cost, aggregate
fair value and gross unrealized gains and losses for Orbital's short-term
investments in debt securities:

<TABLE>
<CAPTION>
                                      DECEMBER 31,
    (IN THOUSANDS)             1996                 1995
 ---------------------  ------------------   -----------------
<S>                      <C>                    <C>
Amortized cost               $   5,813           $   19,645
Fair value                       5,827               19,713
Unrealized gains                    14                   70
Unrealized losses                   --                   (2)
-----------------            ---------           ----------
</TABLE>

        Orbital recognized net losses of approximately $261,000 on sales of
short-term investments in 1995 and had no such losses in 1996. Debt securities
(at fair value) with contractually scheduled maturities scheduled to mature in
1997 and through 2001 are in the amounts of $1,470,000 and $4,357,000,
respectively. No securities mature after 2001.


                                       34
<PAGE>   38


6. RECEIVABLES AND ACCRUED EXPENSES

        The components of receivables are as follows:

<TABLE>
<CAPTION>
                                                        DECEMBER 31,
             (IN THOUSANDS)                       1996                 1995
 --------------------------------------   -------------------  ------------------
                                              (RESTATED)           (RESTATED)
<S>                                       <C>                    <C>
Billed and billable                           $    73,505          $    63,119
Recoverable costs and accrued
  profit not billed                                59,069               46,691
Retainages due upon contract
  completion                                        9,767                7,724
Allowance for doubtful accounts                    (1,368)                (773)
                                              -----------          -----------
  Total                                       $   140,973          $   116,761
                                              ===========          ===========
</TABLE>

        Approximately 53% of recoverable costs and accrued profit not billed and
retainages due upon contract completion at December 31, 1996 is due within one
year and will be billed on the basis of contract terms and delivery schedules.

        The accuracy and appropriateness of Orbital's direct and indirect costs
and expenses under its government contracts, and therefore its receivables
recorded pursuant to such contracts, are subject to extensive regulation and
audit by the U.S. Defense Contract Audit Agency or by other appropriate agencies
of the U.S. Government, which have the right to challenge Orbital's cost
estimates or allocations with respect to any such contracts. Additionally, a
substantial portion of the payments to the company under government contracts
are provisional payments that are subject to potential adjustment upon audit by
such agencies. In the opinion of management, any adjustments likely to result
from inquiries or audits of its contracts will not have a material adverse
impact on the company's financial condition or results of operations.

        At December 31, 1996 and 1995, $33,690,000 and $26,470,000,
respectively, were receivable from non-U.S. customers. The company enters into
forward exchange contracts to hedge against foreign currency fluctuations on
certain receivables and payables denominated in such foreign currencies.
Accordingly, Orbital is subject to off-balance sheet market risk for the
possibility that future changes in market prices may make the forward exchange
contracts less valuable. The following table summarizes outstanding foreign
exchange contracts at December 31, 1996 to (purchase) sell foreign currencies,
along with current market values:

<TABLE>
<CAPTION>
                                  (U.S. DOLLARS, IN THOUSANDS)
-------------------------------------------------------------------------------------------------
               FOREIGN                CURRENCY                         CURRENT      UNREALIZED
              CURRENCY                HEDGED        CONTRACT           MARKET          GAIN
               HEDGED                 AGAINST        AMOUNT             VALUE         (LOSS)
-----------------------------------   ----------------------------   ----------   ---------------
<S>                                  <C>               <C>           <C>             <C>
Belgian Francs                        CD                  $3,043     $   2,885       $    158
Belgian Francs                        PS                       2             2             --
Italian Lira                          CD                     (23)          (22)            (1)
ECU                                   CD                  10,484         9,638            846
ECU                                   PS                     678           619             59
French Francs                         CD                     (50)          (45)            (5)
Pounds Sterling                       CD                    (410)         (409)            (1)
Japanese Yen                          CD                     365           329             36
Malaysian Riggits                     CD                   8,038         8,168           (130)
Norwegian Kroner                      CD                   1,127         1,082             45
U.S. Dollars                          CD                   6,068         6,168           (100)
-------------------------------------------------------------------------------------------------
CD = Canadian Dollars                 PS = Pounds Sterling
</TABLE>



                                       35
<PAGE>   39



        Accrued expenses consist of the following:

<TABLE>
<CAPTION>
                                               DECEMBER 31,
         (IN THOUSANDS)                  1996                1995
 ------------------------------   ------------------  ------------------
                                      (RESTATED)          (RESTATED)
<S>                                <C>                   <C>
Payroll, payroll taxes and
  fringe benefits                     $   20,422          $   17,856
Payable to subcontractors                  8,660              11,552
Accrued contract costs                     2,027               9,787
Other accrued expenses                     8,910               8,920
                                      ----------          ----------
  Total                               $   40,019          $   48,115
                                      ==========          ==========
</TABLE>

7. PROPERTY, PLANT AND EQUIPMENT

        Property, plant and equipment consist of the following:

<TABLE>
<CAPTION>
                                                       DECEMBER 31,
             (IN THOUSANDS)                      1996                  1995
 --------------------------------------  -------------------   ------------------
                                              (RESTATED)           (RESTATED)
<S>                                          <C>                 <C>
Land                                         $      1,422          $     1,422
Buildings and leasehold
  improvements                                     21,239               17,455
Machinery and equipment                           116,209               90,000
Equipment and satellite systems
  under construction                               47,221               43,298
Software and technical drawings                    10,331                7,340
Accumulated depreciation and
  amortization                                    (69,534)             (53,614)
                                             ------------          -----------
  Total                                      $    126,888          $   105,901
                                             ============          ===========
</TABLE>

        Interest expense of approximately $8,156,000, $6,685,000 and $5,500,000
was capitalized during 1996, 1995 and 1994, respectively, as part of the
historical cost of equipment under construction, satellite systems under
construction and investments in affiliates.

SATELLITE SYSTEMS

        Orbital and Orbital Imaging Corporation ("ORBIMAGE"), a wholly owned
subsidiary of the company, have constructed or are in the process of
constructing several of their own satellite systems that provide or will provide
high-resolution imaging, multi-spectral imaging and other Earth observation
services to commercial and government customers. Generally, the company does not
begin construction of a specific project until financing has been arranged or a
customer has committed to purchase future imaging services generated by or
provided from specific satellite systems. Orbital expenses the costs of
developing and constructing these systems until such time that the technological
and economic feasibility have been established. Once established, Orbital
capitalizes remaining construction costs, net of non-refundable payments
received from customers. Any refundable advance payments for imagery received
from customers are deferred until such time as the imagery is delivered.
Equipment and satellite systems under construction includes capitalized costs
totaling approximately, $26,562,000 and $14,910,000 at December 31, 1996 and
1995, respectively, relating to various imaging satellite systems that are
either operating or under construction.

8. SHORT-TERM BORROWINGS

        The company has a revolving credit facility that provides for total
borrowings from an international syndicate of six banks of up to $65,000,000,
subject to a defined borrowing base composed of certain receivables. At December
31, 1996 and 1995, approximately $8,000,000 and $3,000,000, respectively, of
borrowings were outstanding against an available facility limit of approximately
$35,700,000 and $23,500,000, respectively. The interest rate charged under the
facility is a variable rate based on the prime rate, the Federal Funds rate or
adjusted LIBOR. As of December 31, 1996, the interest rate on outstanding
borrowings under this facility was approximately 7.5%. Borrowings are secured by
receivables and certain other assets. The facility prohibits the payment of cash
dividends and contains certain covenants with respect to the company's working
capital, fixed charge ratio, leverage ratio and tangible net worth, and expires
in September 1997.



                                       36
<PAGE>   40


        In September 1995, Orbital entered into a $7,000,000 unsecured demand
line of credit with an international bank, which was expanded to $25,000,000 in
1996. The line is repayable upon demand and bears interest at the prime rate or
LIBOR. At December 31, 1996, the interest rate on outstanding borrowings under
this line of credit was approximately 6%. At December 31, 1996, approximately
$17,500,000 of borrowings were outstanding against this line of credit. There
were no such borrowings outstanding at December 31, 1995.

        The company increased another line of credit with a domestic bank to
$10,000,000 during 1996, subject to a defined borrowing base. At December 31,
1996 and 1995, $5,700,000 and $2,000,000, respectively, was outstanding against
an available facility limit of $6,110,000 and $3,000,000, respectively. The
interest rate on outstanding borrowings was approximately 8.25% at December 31,
1996. The facility is secured by substantially all the assets of Magellan and
contains certain covenants with respect to Magellan's working capital,
profitability, leverage ratio and tangible net worth.

9. LONG-TERM OBLIGATIONS

        The following sets forth the company's long-term obligations, excluding
capital lease obligations (See Note 10):

<TABLE>
<CAPTION>
                                                                  DECEMBER 31,
                   (IN THOUSANDS)                            1996                 1995
 ---------------------------------------------------  ------------------   ------------------
<S>                                                    <C>                 <C>
7.00% Secured Note, principal and
     interest due monthly through
     December 1998                                        $    1,275          $      1,876
7.74-9.35% Secured Notes, principal
     and interest due monthly through
     September 1997-October 1999                              12,554                17,816
8.95% Secured Bank Note, principal
     and interest due monthly through
     September 1999                                            2,284                 2,310
5.16% Secured Bank Notes, principal
     and interest due monthly through
     August 2003                                               1,631                 4,340
11.5% Unsecured Note, interest due
     semi-annually, principal due June 2001                   20,000                20,000
6.75% Convertible Subordinated
     Debentures, interest due semi-
     annually, principal due 2003                                 --                56,000
                                                          ----------          ------------
                                                              37,744               102,342
Less current portion                                          (6,115)               (6,084)
                                                          ----------          ------------
     Total                                                $   31,629          $     96,258
                                                          ==========          ============
</TABLE>

        The 7.00% secured note is collateralized by certain equipment located at
the company's Pomona, California facility. The 7.74-9.35% secured notes are
collateralized by certain equipment located at the company's Germantown,
Maryland facility. The 8.95% secured bank note was collateralized by the
company's satellite integration and test facility located in Dulles, Virginia.
The company chose to repay this note in February 1997.

        The company has two secured bank borrowing agreements, totaling
approximately $44,000,000, of which $19,400,000 was available at December 31,
1996. The secured bank notes, pursuant to an intercreditor agreement between two
international banks, provide for borrowings at a variable rate (5.16% at
December 31, 1996), and are collateralized by MDA's receivables, inventory and
certain other assets.

        Orbital amended its 11.5% unsecured note during the third quarter of
1996 to facilitate compliance with certain financial covenants as well as to
permit the completion of the ORBCOMM Global debt financing (see below). In
connection with this amendment, the interest rate on the note increased from
10.5% to 11.5% effective July 1, 1996. The unsecured note contains certain
covenants with respect to fixed charge ratio, leverage ratio and tangible net
worth, and includes certain cross-default provisions.

        On August 14, 1996, the company completed the redemption of the
remaining $55,880,000 outstanding principal amount of its 6.75% Convertible
Subordinated Debentures due 2003 (the "Debentures"). Pursuant to the terms of
the indenture governing the Debentures, the holders had the option of redeeming
their holdings for cash or converting their holdings into Orbital Common Stock
at a predetermined conversion rate. The company entered into a standby
underwriting agreement with an investment bank whereby the investment bank
agreed, subject to customary conditions,


                                       37
<PAGE>   41

to purchase from the company shares of its Common Stock in an amount to provide
sufficient proceeds to the company to satisfy any redemptions by the holders of
the Debentures. As a result of the conversion by the holders and the standby
arrangement, the remaining outstanding principal amount of the Debentures was
converted into 3,887,304 shares of Common Stock.

        On August 7, 1996, ORBCOMM Global issued $170,000,000 senior unsecured
notes due 2004 (the "ORBCOMM Notes") to institutional investors. The ORBCOMM
Notes bear interest at a fixed rate of 14% and provide for noteholder
participation in future ORBCOMM Global service revenues. The ORBCOMM Notes are
fully and unconditionally guaranteed on a joint and several basis by OCC and by
Teleglobe Mobile; the guarantee is non-recourse to Orbital.

        The fair value of Orbital's long-term obligations at December 31, 1996
and 1995 is estimated at approximately $38,521,000 and $106,000,000,
respectively, based on quoted market prices or on current rates offered for debt
of similar remaining maturities. Scheduled maturities of long-term debt for
1997, 1998, 1999, 2000 and 2001 are $6,115,000, $5,349,000, $12,329,000,
$7,024,000 and $6,927,000, respectively.

10. LEASE COMMITMENTS

        Aggregate minimum rental commitments under non-cancelable operating and
capital leases (primarily for office space and equipment) at December 31, 1996
are as follows (restated):

<TABLE>
<CAPTION>
        (IN THOUSANDS)            OPERATING      CAPITAL
-----------------------------  -------------  -------------
<S>                 <C>        <C>            <C>
                     1997       $    10,378   $    1,827
                     1998             9,611        1,525
                     1999             9,091        1,400
                     2000             8,942          850
                     2001             8,334           70
  2002 and thereafter                32,775           --
                                -----------   ----------
                                $    79,131        5,672
                                ===========
Less: Interest at 10%                               (321)
Less: Current portion                             (1,654)
                                              ----------
                    Total                     $    3,697
                                              ==========
</TABLE>

        Rent expense under operating leases for 1996, 1995 and 1994 was
$12,300,000, $11,215,000 and $10,624,000, respectively.

11. INCOME TAXES

        The provisions (benefit) for income taxes consist of the following:

<TABLE>
<CAPTION>
                                                     YEARS ENDED DECEMBER 31,
          (IN THOUSANDS)                   1996                1995                1994
 --------------------------------   -----------------   -----------------   ----------------
                                        (RESTATED)          (RESTATED)
<S>                                   <C>                <C>                  <C>
CURRENT PROVISION:
  U.S. Federal                          $      --           $       33          $     563
  Foreign                                     211                1,180                756
  State                                        --                   --                732
DEFERRED PROVISION:
  U.S. Federal                          $      --           $   (5,623)         $     342
  Foreign                                      --               (2,159)               (93)
  State                                        --                   --                444
                                        ---------           ----------          ---------
    Total                               $     211           $   (6,569)         $   2,744
                                        =========           ==========          =========
</TABLE>


                                       38
<PAGE>   42


        The income tax provisions (benefit) are different from those computed
using the statutory U.S. Federal income tax rate as set forth below:

<TABLE>
<CAPTION>
                                                      YEARS ENDED DECEMBER 31,
                                             1996               1995               1994
                                       ----------------   ----------------    -------------
                                          (RESTATED)         (RESTATED)
<S>                                     <C>                 <C>               <C>
U.S. Federal statutory rate                35.0%               (34.0)%           34.0%
Intangible amortization                     21.9                10.2              9.2
Foreign income taxes, net                  (21.4)              (10.8)            (1.4)
Change in valuation allowance              (43.6)              249.7               --
Other, net                                  10.7              (282.3)           (15.3)
                                            ----              -------           -----
  Effective Rate                            2.6%               (67.2)%           26.5%
                                            ===                 =====            ====
</TABLE>

        The tax effects of significant temporary differences are as follows:

<TABLE>
<CAPTION>
                                                            DECEMBER 31,
                (IN THOUSANDS)                          1996             1995
----------------------------------------------   -----------------  ---------
TAX ASSETS:                                                 (RESTATED)
<S>                                               <C>              <C>
  Non-deductible financial
    statement accruals                              $    37,603     $     34,684
  U.S. Federal net operating loss
    Carryforward                                         51,628           44,655
  Intangible assets                                       6,865            6,865
  U.S. Federal and foreign tax credit
    carryforward                                         16,952           19,587
                                                    -----------     ------------
                                                        113,048          105,791
  Valuation allowance                                   (54,432)         (68,021)
                                                    -----------     ------------
    Tax assets, net                                 $    58,616     $     37,770
                                                    ===========     ============
TAX LIABILITIES:
  Percentage of completion accounting               $     3,349     $      2,555
  Excess tax depreciation                                 5,280            7,198
  Excess deductions for tax reporting
    purposes                                             27,280           18,007
                                                    -----------     ------------
    Tax liabilities                                 $    35,909     $     27,760
                                                    ===========     ============
</TABLE>

        The company established deferred tax assets in connection with its 1994
Fairchild Acquisition (See Note 4) of $35,446,000, and deferred tax liabilities
of $2,337,000. The company also established a valuation allowance of
approximately $33,109,000 against certain deferred tax assets acquired in
connection with the Fairchild Acquisition.

        In 1996 and 1994, approximately 56.6% and 27.9%, respectively, of the
company's income before provision for income taxes and cumulative effect of an
accounting change was generated from foreign sources. In 1995, approximately
$2,100,000 of income before benefit for income taxes and cumulative effect of an
accounting change was generated from foreign sources. The company had Federal
net operating loss and tax credit carryforwards of approximately $120,000,000
and $3,000,000, respectively, at December 31, 1996 that may be utilized through
the year 2012, subject to certain annual limitations and other restrictions, of
which portions expire beginning in 2001.

12. COMMON STOCK AND STOCK OPTIONS

        In 1996 and 1995, the company issued and sold 1,200,000 and 2,000,000
shares, respectively, of its Common Stock in private placements to various
offshore investors, receiving net proceeds of approximately $20,300,000 and
$32,400,000, respectively.

        The company's 1990 Stock Option Plan (the "1990 Plan") provides for
grants of either incentive or non-qualified stock options to officers, employee
directors and general employees of the company and its subsidiaries. Under the
terms of the 1990 Plan, incentive stock options may not be granted at less than
100% of the fair market value of the company's Common Stock at the date of
grant, and non-qualified options may not be granted at less than 85% of the fair
market value of the company's Common Stock at the date of grant. Each option
under the 1990 Plan vests at a rate set forth by the Board of Directors in each
individual option agreement, generally in one-third increments over a three-year
period following the date of grant. Options expire no more than ten years
following the grant date. The 1990 Plan currently provides for the granting of
up to 2,975,000 shares of the company's Common Stock. The company also maintains
a plan that provides solely for automatic grants of non-qualified stock options
to eligible non-employee directors of the company.


                                       39
<PAGE>   43


        In January 1997, Orbital's Board of Directors approved the company's
1997 Stock Option and Incentive Plan (the "1997 Plan"), subject to stockholder
approval. The 1997 Plan will provide for an additional 1,600,000 shares of the
company's Common Stock to be available for grants of options and restricted
stock to officers, directors, employees and consultants to the company.
Incentive and non-qualified stock options must be granted with an exercise price
not less than 100% of the stock's fair market value at the date of grant.

        OCC adopted a stock option plan in 1992 (the "ORBCOMM Plan"). The
ORBCOMM Plan provides for grants of incentive and non-qualified stock options to
purchase OCC common stock to officers and employees of ORBCOMM Global and the
company. Under the terms of the ORBCOMM Plan, incentive stock options may not be
granted at less than 100% of the fair market value, and non-qualified options
may not be granted at less than 85% of the fair market value, of OCC common
stock at the date of grant as determined by a committee consisting of two OCC
Board members and two members appointed by Teleglobe Mobile. The options vest at
a rate set forth by the Board of Directors in each individual option agreement,
generally in one-fourth increments over a four-year period. Certain provisions
of the ORBCOMM Plan require OCC to repurchase, with cash or promissory notes,
the common stock acquired pursuant to the options. The cash repurchase amount is
restricted by the terms of the ORBCOMM Notes to an amount not to exceed
$1,000,000 in any one year. During 1996, OCC repurchased 47,760 shares of OCC
common stock acquired by current and former employees pursuant to OCC option
exercises.

        The following tables summarize information regarding options under the
company's stock option plans (including option plans assumed by the company as a
result of the Magellan and MDA acquisitions) and the ORBCOMM Plan for the last
three years:

ORBITAL OPTIONS

<TABLE>
<CAPTION>
                                                                                 WEIGHTED
                                   NUMBER OF           OPTION PRICE               AVERAGE                   OUTSTANDING
                                    SHARES               PER SHARE             EXERCISE PRICE            AND EXERCISABLE
                                    ------               ---------             --------------            ---------------
<S>                             <C>                    <C>                     <C>                        <C>
OUTSTANDING AT
  DECEMBER 31, 1993                 1,324,198            $1.82 - $ 20.00         $ 9.92                       558,422
     Granted                          978,560            $3.51 - $ 22.00         $17.63
     Exercised                       (107,387)           $3.51 - $ 15.30         $12.72
     Cancelled/Expired                (78,476)          $10.20 - $ 22.00         $19.28
                                  -----------
OUTSTANDING AT
  DECEMBER 31, 1994                 2,116,895            $1.82 - $ 22.00         $13.02                       997,981
     Granted                          553,966            $7.47 - $ 18.81         $16.97
     Exercised                       (300,011)           $3.51 - $ 15.30         $ 6.29
     Cancelled/Expired               (130,325)           $3.51 - $ 22.00         $20.39
                                  -----------
OUTSTANDING AT
  DECEMBER 31, 1995                 2,240,525            $1.82 - $ 22.00         $14.16                     1,133,713
     Granted                        1,372,000           $12.25 - $ 17.63         $13.26
     Exercised                       (298,916)           $1.82 - $ 17.75         $ 7.20
     Cancelled/Expired               (588,399)           $3.51 - $ 22.00         $20.23
                                  -----------
OUTSTANDING AT
  DECEMBER 31, 1996                 2,725,210            $1.82 - $ 22.00         $13.10                     1,324,316
                                  ===========
</TABLE>



<TABLE>
<CAPTION>
                                                               OPTIONS OUTSTANDING
                          ----------------------------------------------------------------------------------
                                   NUMBER              WEIGHTED AVERAGE
         RANGE OF                 OUTSTANDING             REMAINING                    WEIGHTED AVERAGE
      EXERCISE PRICES          AT DEC. 31, 1996        CONTRACTUAL LIFE                EXERCISE PRICE
------------------------  -------------------------- --------------------------   --------------------------
<S>                          <C>                       <C>                              <C>
    $ 1.82 - $12.25                   939,144                 6.2 years                    $9.71
    $ 12.96 - $13.71                1,018,164                 7.8 years                    $13.52
    $ 13.75 - $22.00                  767,902                 7.1 years                    $16.71
                                  -----------
    $  1.82 - $22.00                2,725,210                 7.1 years                    $13.10
                                  ===========
<CAPTION>
                OPTIONS EXERCISABLE
------------------------------------------------
      NUMBER
     EXERCISABLE              WEIGHTED AVERAGE
   AT DEC. 31, 1996             EXERCISE PRICE
   ----------------         --------------------
<S>    <C>                       <C>
            491,976                 $ 8.55
            433,576                 $13.54
            398,764                 $16.57
        -----------
          1,324,316                 $12.60
        ===========
</TABLE>


                                       40
<PAGE>   44


OCC OPTIONS

<TABLE>
<CAPTION>

                                                                                 WEIGHTED
                                    NUMBER OF          OPTION PRICE               AVERAGE                   OUTSTANDING
                                     SHARES              PER SHARE              EXERCISE PRICE            AND EXERCISABLE
                                     ------              ---------              --------------            ---------------
<S>                                <C>                  <C>                     <C>                         <C>
OUTSTANDING AT
  DECEMBER 31, 1993                   496,274             $1.50 - $ 12.50          $ 3.81                      184,966
     Granted                          118,650             $5.25 - $ 12.50          $13.42
     Exercised                         (4,186)            $1.50 - $  4.00          $ 1.76
     Cancelled/Expired                (11,664)            $1.50 - $ 13.00          $ 8.17
                                    ---------
OUTSTANDING AT
  DECEMBER 31, 1994                   599,074             $1.50 - $ 14.00          $ 5.64                      298,657
     Granted                               --                         N/A             N/A
     Exercised                         (8,936)            $1.50 - $ 13.00          $ 3.87
     Cancelled/Expired                (44,238)            $1.50 - $ 13.00          $ 6.74
                                    ---------
OUTSTANDING AT
  DECEMBER 31, 1995                   545,900             $1.50 - $ 14.00          $ 5.56                      411,086
     Granted                          154,500            $17.00 - $ 25.00          $20.50
     Exercised                        (67,270)            $1.50 - $ 13.00          $ 2.43
     Cancelled/Expired                (34,300)            $1.50 - $ 17.00          $13.81
                                    ---------
OUTSTANDING AT
  DECEMBER 31, 1996                   598,830             $1.50 - $ 25.00          $ 9.40                      393,903
                                    =========
</TABLE>

<TABLE>
<CAPTION>
                                                                OPTIONS OUTSTANDING
                              ---------------------------------------------------------------------------------
                                      NUMBER                      WEIGHTED AVERAGE
         RANGE OF                    OUTSTANDING                  REMAINING                     WEIGHTED AVERAGE
      EXERCISE PRICES             AT DEC. 31, 1996                CONTRACTUAL LIFE               EXERCISE PRICE
      ---------------             ----------------                ----------------               --------------
<S>                           <C>                                <C>                               <C>
$  1.50 - $4.00                            283,040                     5.8 years                    $ 2.37
$  5.25 - $17.00                           248,290                     7.5 years                    $13.18
$ 25.00 - $25.00                            67,500                     9.3 years                    $25.00
                                 -----------------
$  1.50 - $25.00                           598,830                     6.9 years                    $ 9.40
                                 =================

<CAPTION>
               OPTIONS EXERCISABLE
---------------------------------------------------
       NUMBER
     EXERCISABLE               WEIGHTED AVERAGE
  AT DEC. 31, 1996              EXERCISE PRICE
  ----------------              --------------
     <C>                         <C>
        283,040                   $ 2.37
        110,863                   $11.33
              0                      N/A
      ---------
        393,903                   $ 4.89
      ---------




</TABLE>

        During 1996, Magellan and ORBIMAGE each adopted a 1996 Stock Option Plan
(the "Magellan Plan" and the "ORBIMAGE Plan," respectively) pursuant to which
incentive or non-qualified options to purchase up to 7,000,000 shares of
Magellan common stock and 2,800,000 shares of ORBIMAGE common stock may be
granted to Magellan and Orbital employees, consultants or advisors in the case
of the Magellan Plan, and ORBIMAGE and Orbital employees, consultants or
advisors in the case of the ORBIMAGE Plan. Under both plans, stock options may
not be granted with an exercise price less than 85% of the stock's fair market
value at the date of grant, as determined by the respective Boards of Directors
and approved by Orbital's Audit and Finance Committee. The Magellan and ORBIMAGE
options generally vest incrementally over a three-year period.

        During 1996, Magellan granted 6,915,900 options pursuant to the Magellan
Plan at $1.10 per share, the fair market value at the date of grant of Magellan
common stock. Of these grants, 322,300 were cancelled in 1996, and 667,539
options are exercisable at December 31, 1996. Certain provisions of the Magellan
Plan require Magellan to repurchase the common stock acquired pursuant to the
options. Also during 1996, ORBIMAGE granted 1,408,000 options pursuant to the
ORBIMAGE Plan at $3.60 per share, the fair market value at the date of grant of
ORBIMAGE common stock. Of these grants, 352,000 are exercisable at December 31,
1996. The weighted average remaining contractual life of outstanding options was
approximately ten years for each of the Magellan and ORBIMAGE Plans at December
31, 1996.

<TABLE>
<CAPTION>
                  ADDITIONAL                                            EXPECTED
                    SHARES                                              DIVIDEND                     RISK-FREE
                   AVAILABLE               VOLATILITY                     YIELD                    INTEREST RATE
                -------------     -------------------------------------------------------- ---------------------------
                 DEC. 31, 1996         1996         1995           1996           1995          1996         1995
------------------------------    --------------------------  -------------  ------------- --------------------------
<S>              <C>               <C>          <C>             <C>             <C>            <C>        <C>
Orbital Plans        231,955           56%         58%             0%             0%            5.3%        7.0%
ORBCOMM Plan          20,778           30%         N/A             0%             0%            5.6%        N/A
Magellan Plan        406,400           30%         N/A             0%             0%            6.4%        N/A
ORBIMAGE Plan      1,392,000           30%         N/A             0%             0%            5.8%        N/A

<CAPTION>
           AVERAGE               WEIGHTED AVERAGE
        EXPECTED LIFE               FAIR VALUE
         (IN YEARS)                  PER SHARE
----------------------------------------------------------
     1996         1995          1996            1995
-------------------------- -------------   ---------------
<S>              <C>        <C>           <C>
   4.5            4.5        $13.26        $   16.97
   4.5            N/A         20.50             N/A
   4.5            N/A          1.10             N/A
   4.5            N/A          3.60             N/A
</TABLE>

13. STOCK-BASED COMPENSATION

        On January 1, 1996, the company adopted SFAS 123. The company uses the
Black-Scholes option pricing model to determine the pro forma impact to the
company's net income and earnings per share. The model utilizes certain
information, such as the interest rate on a risk-free security maturing
generally at the same time as the option being valued, and requires certain
assumptions, such as the expected amount of time an option will be outstanding
until it is


                                       41
<PAGE>   45

exercised or it expires, to calculate the weighted average fair value per share
of stock options granted. This information and the assumptions used for 1996 and
1995 for all option plans is summarized as follows.

        The company recorded compensation expense of approximately $300,000,
$55,000 and $234,000 related to the various option plans for the years ended
December 31, 1996, 1995 and 1994, respectively. Had the company determined
compensation expense based on the fair value at the grant date for stock options
in accordance with the alternative method prescribed by SFAS 123, the company's
net loss and primary and fully diluted loss per share, would have been
($743,000) and ($0.03), respectively, for the year ended December 31, 1996,
while net loss and primary and fully diluted loss per share would have been
($7,515,000) and ($0.29), respectively, for the year ended December 31, 1995.
Pro forma net income reflects only options granted in 1996 and 1995 and,
therefore, may not be representative of the effects for future periods.

        During 1996, the company issued 150,000 stock appreciation rights that
vest over a three-year period. Payment is dependent on appreciation of the
company's Common Stock over the vesting period. The company recorded
approximately $175,000 in compensation expense during 1996 for this issuance.

14. SUPPLEMENTAL DISCLOSURES

DEFINED CONTRIBUTION PLANS

        At December 31, 1996, the company had four defined contribution plans
(the "Plans") in accordance with Section 401(k) of the Internal Revenue Code of
1986, as amended. Generally, all full-time employees are eligible for
participation in the Plan applicable to their location. Company contributions to
the Plans are made based on certain plan provisions and at the discretion of the
Board of Directors, and were approximately $5,818,000, $5,015,000 and $2,991,000
during 1996, 1995 and 1994, respectively. Total company contributions to foreign
defined contribution plans during 1996, 1995 and 1994 were $1,279,000,
$1,518,000 and $1,436,000, respectively.

CASH FLOWS

        Cash payments for interest and income taxes were as follows:

<TABLE>
<CAPTION>
                                                         YEARS ENDED DECEMBER 31,
             (IN THOUSANDS)                     1996               1995              1994
 ---------------------------------------  ----------------   ----------------  ---------------
<S>                                      <C>                  <C>                <C>
Interest paid                            $     10,860            $   9,906        $    11,831
Income taxes paid,
  net of refunds                                 1,327               1,339              2,447
</TABLE>

        The company paid approximately $40,800,000 in cash and issued Common
Stock with a fair value of approximately $31,000,000 in connection with the 1994
Fairchild Acquisition in return for approximately $95,000,000 in assets, and the
company assumed or established liabilities of approximately $23,200,000.


                                       42
<PAGE>   46



SUMMARY SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED)

        Management has determined to restate its previously issued consolidated
financial statements for each of the quarters in 1996 and 1995 with respect to
its accounting treatment for certain matters described below. The following is a
summary of selected quarterly financial data for the previous two years (in
thousands, except share data):

<TABLE>
<CAPTION>

        (IN THOUSANDS,                                    QUARTER  ENDED
      EXCEPT SHARE DATA)             MAR. 31          JUNE 30          SEPT. 30           DEC. 31
------------------------------   -------------   ----------------  ----------------  ---------------
<S>                              <C>              <C>                <C>              <C>
1996 (as previously reported)
Revenues                         $ 104,894         $ 116,512         $ 119,571         $ 120,458
Gross profit                        32,312            32,888            31,875            28,099
Income from operations               5,872             7,324             7,124             3,522
Net income                           3,128             3,839             4,456             4,484
Net income per common
  and dilutive share                  0.12              0.14              0.15              0.14

1995 (as previously reported)
Revenues                         $  88,975         $  81,766         $  95,817         $  97,762
Gross profit                        25,513            20,730            25,076            24,985
Income (loss) from
   operations                        4,614              (972)            3,683            (6,179)
Net income (loss) before
  cumulative effect of
  accounting change                  3,015            (1,626)            1,757            (3,837)
Net income (loss)                   (1,139)           (1,626)            1,757            (3,837)
Net income (loss) per common
   and dilutive share                (0.05)            (0.07)             0.06             (0.14)

1996 (as restated)
Revenues                         $ 104,801         $ 115,063         $ 119,903         $ 110,020
Gross Profit                        33,063            32,336            30,368            21,439
Income (loss) from operations        5,458             6,191             6,574            (4,466)
Net income (loss)                    2,965             3,054             4,082              (159)
Net income (loss) per common
   and dilutive share                 0.11              0.11              0.14             (0.01)

1995 (as restated)
Revenues                         $  89,203         $  81,994         $  96,045         $  92,598
Gross Profit                        25,572            20,789            25,135            17,198
Net income (loss) from
   operations                        4,614              (972)            3,683           (14,580)
Net income (loss) before
   cumulative effect of
   accounting changes                1,390            (1,432)            2,039            (5,210)
Net income (loss)                     (987)           (1,432)            2,039            (5,210)
Net income (loss) per common
   share                             (0.04)            (0.06)             0.08             (0.19)
</TABLE>



                                       43
<PAGE>   47





EQUITY METHOD ACCOUNTING RESTATEMENT ADJUSTMENTS

        Previously, the company's consolidated financial statements reflected
the company's capitalization of interest expense on various assets, including on
its equity investment in ORBCOMM. As reflected in the restated consolidated
financial statements presented herein, Orbital has revised the capitalization of
interest on certain assets, including its equity method investment in ORBCOMM.
These revisions include the compounding impact of interest, and the reduction of
eligible investment amounts for losses recognized for equity method investors.
These revisions had the effect of increasing (decreasing) interest expense for
each quarter of 1996 and 1995 as follows (in thousands):

<TABLE>
<CAPTION>
                      March 31              June 30        September 30       December 31
<S>                 <C>                 <C>                 <C>                <C>
     1996             $ ( 322)              $  (383)            $  (300)         $     53
     1995             $  (155)              $  (193)            $  (271)             (366)
</TABLE>


        Previously, the company's consolidated financial statements did not
reflect the amortization of previously deferred profits in connection with its
sales of both satellite and ground stations to ORBCOMM. As reflected in the
restated consolidated financial statements presented herein, Orbital is
amortizing a portion of such deferred profits over the estimated lives of both
the satellites and the ground stations. The effect of this revision is to
increase the company's equity in losses of affiliates by approximately $110,000
in each of the quarters in 1996.

ASSET RESTATEMENT ADJUSTMENTS

        The company has historically capitalized and depreciated certain product
enhancements. Previously, the company's consolidated financial statements
reflected such costs as capitalized assets in 1996 and 1995. As reflected in the
company's restated consolidated financial statements, the company has expensed
all previously capitalized enhancement costs. These revisions resulted in a
decrease in operating income as follows (in thousands):

<TABLE>
<CAPTION>
                        March 31              June 30        September 30          December 31
<S>                   <C>                    <C>            <C>                    <C>
     1996               $ 209                 $  1,132             $  1,643          $  2,941
     1995               $   0                 $      0             $      0          $  1,313
</TABLE>

        The company has recorded certain other adjustments, the net effect of
which is not significant individually or in the aggregate.

                                       44
<PAGE>   48


ITEM 9.     CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
            FINANCIAL DISCLOSURE

        None.

                                    PART III

ITEM 10.    DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

        The information required by this Item is included in Item 4A above and
under the caption "Election of Directors -- Directors to be Elected at the 1997
Annual Meeting, -- Directors Whose Terms Expire in 1998 and -- Directors Whose
Terms Expire in 1999" and "Section 16(a) Beneficial Ownership Reporting
Compliance" of the Proxy Statement filed pursuant to Regulation 14A on or about
March 26, 1997 and is incorporated herein by reference.

ITEM 11.    EXECUTIVE COMPENSATION

        The information required by this Item is included under the captions
"Summary Compensation Table," "Option Grants in Last Fiscal Year," "Aggregated
Option Exercises in Last Fiscal Year and Fiscal Year-End Option Values,"
"Indemnification Agreements," " Executive Employment Agreements and Termination
of Employment Agreements" and "Information Concerning the Board and Its
Committees" of the Proxy Statement filed pursuant to Regulation 14A on or about
March 26, 1997 and is incorporated herein by reference.

ITEM 12.    SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

        The information required by this Item is included under the caption
"Ownership of Common Stock" of the Proxy Statement filed pursuant to Regulation
14A on or about March 26, 1997 and is incorporated herein by reference.

ITEM 13.    CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

        The information required by this Item is included under the caption
"Related Transactions" of the Proxy Statement filed pursuant to Regulation 14A
on or about March 26, 1997 and is incorporated herein by reference.

                                     PART IV

ITEM 14.    EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND REPORTS ON FORM 8-K

(a)   Documents filed as part of this Report:

     1. FINANCIAL STATEMENTS. The following financial statements, together with
        the report of KPMG LLP, are filed as a part of this report:

     A. Independent Auditors' Report

     B. Consolidated Statements of Operations

     C. Consolidated Balance Sheets

     D. Consolidated Statements of Stockholders' Equity

     E. Consolidated Statements of Cash Flows

     F. Notes to Consolidated Financial Statements

     2. FINANCIAL STATEMENTS OF 50-PERCENT OWNED SUBSIDIARY AND FINANCIAL
        STATEMENT SCHEDULES.



                                       45
<PAGE>   49

     The financial statements of ORBCOMM Global, L.P. were previously
     transmitted with Orbital's Form 10K filed with the Securities and Exchange
     Commission on March 26,1997.

     The following additional financial data are transmitted with this report
     and should be read in conjunction with the consolidated financial
     statements contained herein. Schedules other than those listed below have
     been omitted because they are inapplicable or are not required.

     Independent Auditors' Report on Consolidated Financial Statement Schedule

     II  Valuation and Qualifying Accounts

     3. EXHIBITS. A complete listing of exhibits required is given in the
        Exhibit Index that precedes the exhibits filed with this report.

(b)  Reports on Form 8-K

     On December 23, 1996, the Company filed a Current Report on Form 8-K
     reporting, pursuant to Item 9, its sale of 1.2 million shares of common
     stock on December 13, 1996, in a transaction exempt from registration
     pursuant to Regulation S under the Securities Act.

(c)  See Item 14(a)(3) of this report.

(d)  See Item 14(a)(2) of this report.



                                       46
<PAGE>   50



                                    SIGNATURE

     Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this Form 10-K/A to be signed on its behalf by the
undersigned, thereunto duly authorized.

                                      ORBITAL SCIENCES CORPORATION

DATED: June 26, 2000

                                 By      /s/ Jeffrey V. Pirone
                                        -------------------------------------
                                           Jeffrey V. Pirone
                                         Executive Vice President
                                            and Chief Financial Officer


                                       47
<PAGE>   51



                          INDEPENDENT AUDITORS' REPORT

THE BOARD OF DIRECTORS AND STOCKHOLDERS
ORBITAL SCIENCES CORPORATION

        Under date of February 5, 1997, except as to note 1A, which is as of
April 17, 2000, we reported on the consolidated balance sheets of Orbital
Sciences Corporation and subsidiaries as of December 31, 1996 and 1995, and the
related consolidated statements of operations, stockholders' equity, and cash
flows for each of the years in the three-year period ended December 31, 1996,
included in the Company's 1996 annual report on 1996 Form 10K/A. In connection
with our audits of the aforementioned consolidated financial statements, we also
audited the related consolidated financial statement schedule in the Company's
1996 Form 10-K/A. This consolidated financial statement schedule is the
responsibility of the Company's management. Our responsibility is to express an
opinion on the consolidated financial statement schedule based on our audits.

        In our opinion, such consolidated financial statement schedule, when
considered in relation to the basic consolidated financial statements taken as a
whole, presents fairly, in all material respects, the information set forth
therein.

         The accompanying consolidated financial statement schedule as of
December 31, 1996 and 1995, and for each of the years in the two-year period
ended December 31, 1996 has been restated.

                                          KPMG LLP

Washington, D.C.
February 5, 1997, except as to note 1A,
  which is as of April 17, 2000


                                       48
<PAGE>   52


                          ORBITAL SCIENCES CORPORATION
                 SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS
                             (AMOUNTS IN THOUSANDS)

<TABLE>
<CAPTION>
                         COLUMN A                                  COLUMN B
-------------------------------------------------------   --------------------------------------------------------------
                                                                                                   ADDITIONS
                                                                                         -------------------------------

                                                                   BALANCE AT                   CHARGED TO COSTS
                       DESCRIPTION                               START OF PERIOD                  AND EXPENSES
-------------------------------------------------------   ---------------------------    ------------------------------
<S>                                                         <C>                                <C>
YEAR ENDED DECEMBER 31, 1994

      Allowance for doubtful accounts                             $       587                      $      230
      Allowance for obsolete inventory                                  2,260                             216
      Allowance for unrecoverable investments                               -                               -
      Deferred income tax valuation reserve                            14,456                               -


YEAR ENDED DECEMBER 31, 1995 (Restated)

      Allowance for doubtful accounts                             $       859                      $      108
      Allowance for obsolete inventory                                  3,936                             580
      Allowance for unrecoverable investments                           3,100                               -
      Deferred income tax valuation reserve                            43,596                          21,445

YEAR ENDED DECEMBER 31, 1996 (Restated)

      Allowance for doubtful accounts                             $       773                      $      603
      Allowance for obsolete inventory                                  3,778                             667
      Allowance for unrecoverable investments                           1,100                               -
      Deferred income tax valuation reserve                            68,021                               -

<CAPTION>
                         COLUMN A                                COLUMN C                           COLUMN D             COLUMN E
-------------------------------------------------------  ---------------------------------------------------------------------------
                                                                    ADDITIONS
                                                         -----------------------------
                                                                     CHARGED/
                                                                    CREDITED TO                                        BALANCE AT
                       DESCRIPTION                              OTHER ACCOUNTS (1)             DEDUCTIONS (2)         END OF PERIOD
-------------------------------------------------------  -----------------------------   -----------------------  -----------------
<S>                                                         <C>                                <C>                   <C>
YEAR ENDED DECEMBER 31, 1994

      Allowance for doubtful accounts                               $       42                   $        -            $      859
      Allowance for obsolete inventory                                   1,571                         (111)                3,936
      Allowance for unrecoverable investments                            3,100                            -                 3,100
      Deferred income tax valuation reserve                             29,308                         (168)               43,596


YEAR ENDED DECEMBER 31, 1995 (Restated)

      Allowance for doubtful accounts                               $        -                   $     (194)           $      773
      Allowance for obsolete inventory                                       -                         (738)                3,778
      Allowance for unrecoverable investments                                -                       (2,000)                1,100
      Deferred income tax valuation reserve                              2,980                            -                68,021

YEAR ENDED DECEMBER 31, 1996 (Restated)

      Allowance for doubtful accounts                               $        -                   $       (8)           $    1,368
      Allowance for obsolete inventory                                     685                          (32)                5,098
      Allowance for unrecoverable investments                                -                            -                 1,100
      Deferred income tax valuation reserve                                  -                      (13,589)               54,432


</TABLE>

(1)   - Amounts charged/credited to other accounts represent valuation and
      qualifying accounts recorded pursuant to purchase business combinations as
      described in Note (4) to the consolidated financial statements
      incorporated by reference elsewhere herein, adjustments required to recast
      pooled company's year end as described in Note (4) to the consolidated
      financial statements incorporated by reference elsewhere herein, and
      certain reclassifications of deferred tax accounts.

(2)   - Deduction for revaluation of allowance account.



                                       49
<PAGE>   53


                                  EXHIBIT INDEX

         The following exhibits are filed as part of this report. Where such
filing is made by incorporation by reference to a previously filed statement or
report, such statement or report is identified in parentheses. In addition, the
registrant has executed certain instruments reflecting long-term debt, the total
amount of which does not exceed 10% of the total assets of the registrant and it
subsidiaries on a consolidated basis. In accordance with section 4(iii) of Item
601 under Regulation S-K, the registrant agrees to furnish to the Securities and
Exchange Commission copies of each instrument relating to such long-term debt
not otherwise filed herewith or incorporated herein by reference.

<TABLE>
<CAPTION>
   EXHIBIT
     NO.                                          DESCRIPTION
  ----------  --------------------------------------------------------------------------------------------
<S>           <C>
   3.1        Restated Certificate of Incorporation (incorporated by reference to Exhibit 4.1 to the
              Company's Registration Statement on Form S-3 (File Number 333-08769) filed and effective on
              July 25, 1996.

 3.1.1        Certificate of Designation for the Company's Series A Special Preferred Voting Stock
              (incorporated by reference to Exhibit 4.2 to the Company's Registration Statement on Form S-3
              (File Number 333-08769) filed and effective on July 25, 1996).

   3.2        By-Laws of Orbital Sciences Corporation, as amended on July 27, 1995 (incorporated by
              reference to Exhibit 3 to the Company's Quarterly Report on Form 10-Q for the quarter ended
              September 30, 1995).

     4        Form of Certificate of Common Stock (incorporated by reference to Exhibit 4.1 to the
              Company's Registration Statement on Form S-1 (File Number 33-33453) filed on February 9, 1990
              and effective on April 24, 1990).

     9        Voting and Exchange Trust Agreement between the Company, MacDonald Dettwiler Holdings Inc.
              and State Street Bank and Trust Company (incorporated by reference to Exhibit 9 to the
              Company's Annual Report on Form 10-K for the fiscal year ended December 31, 1995).

  10.1        Amended and Restated Credit Agreement, dated as of September 27, 1994 among the Company,
              Orbital Imaging Corporation and Fairchild Space and Defense Corporation, the Banks listed
              therein, Morgan Guaranty Trust Company of New York, as Administrative Agent and J.P. Morgan
              Delaware, as Collateral Agent (the "Credit Agreement") (incorporated by reference to Exhibit
              10.6 to the Company's Report on Form 10-Q for the quarter ended September 30, 1994).

10.1.1        Amendment No. 1 to the Credit Agreement, dated as of October 26, 1994 (incorporated by
              reference to Exhibit 10.6.1 to the Company's Annual Report on Form 10-K, for the fiscal year
              dated December 31, 1995).

10.1.2        Amendment No. 2 to the Credit Agreement, dated as of July 5, 1995 (incorporated by reference
              to Exhibit 10.6.3 to the Company's Report on Form 10-Q for the quarter ended June 30, 1995).

10.1.3        Amendment No. 3 to the Credit Agreement, dated as of August 23, 1995 (incorporated by
              reference to Exhibit 10.3 to the Company's Report on Form 10-Q for the quarter ended
              September 30, 1995).

10.1.4        Amendment No. 4 to the Credit Agreement, dated as of November 15, 1995 (incorporated by
              reference to Exhibit 10.1.3 to the Company's Annual Report on Form 10-K for the fiscal year
              ended December 31, 1995).

10.1.5        Amendment No. 5 to the Credit Agreement , dated as of July 19, 1996 (incorporated by
              reference to Exhibit 10.1 to the Company's Report on Form 10-Q for the quarter ended June 30,
              1996).

10.1.6        Amendment No. 6 to the Credit Agreement (previously filed).

  10.2        Note Agreement, dated as of June 14, 1995 between the Corporation and The Northwestern Mutual
              Life Insurance Company (the "NWML Note Agreement") (incorporated by reference to Exhibit
              4.7.1 to the Company's Report on Form 10-Q for the quarter ended June 30, 1995).

10.2.1        1st Amendment to the NWML Note Agreement ,dated as of June 30, 1995, between the Corporation
              and The Northwestern Mutual Life Insurance Company (incorporated by reference to the
              Company's Report on Form 10-Q for the quarter ended September 30, 1995).

10.2.2        Second Amendment to the NWML Note Agreement, dated as of March 15, 1996 (incorporated by
              reference to Exhibit 10.2.2 to the Company's Annual Report on Form 10-K for the fiscal year
              ended December 31, 1995).

10.2.3        Third Amendment to NWML Note Agreement, dated as of July 13, 1996 (incorporated by reference
              to Exhibit 10.2 to the Company's Report on Form 10-Q for the quarter ended June 30, 1996).

  10.3        Promissory Notes dated as of August 31, 1994 made by Fairchild Space and Defense Corporation
              and Corporate Guaranty dated August 31, 1994 made by the Company (incorporated by reference
              to
</TABLE>


                                       50
<PAGE>   54
<TABLE>
<S>          <C>
              Exhibit 10.7 to the Company's Report on Form 10-Q for the quarter ended September 30, 1994).

   10.4       Security Agreement dated as of June 30, 1992 among the Company, J.P. Morgan Delaware, as
              Collateral Agent and American Security Bank, N.A., as Audit Agent (incorporated by Reference
              to Exhibit 10.6.1 to the Company's Report on Form 10-Q for the quarter ended September 30,
              1994).

   10.5       Master Security Agreement dated as of August 31, 1994 between Fairchild Space and Defense
              Corporation and General Electric Capital Corporation (incorporated by reference to Exhibit
              10.7 to the Company's Report on Form 10-Q for the Quarter ended September 30, 1994).

   10.6       Orbital Sciences Corporation 1990 Stock Option Plan, restated as of April 27, 1995
              (incorporated by reference to Exhibit 10.5.1 to the Company's Report on Form 10-Q for the
              quarter ended June 30, 1995).*

   10.7       Orbital Sciences Corporation 1990 Stock Option Plan for Non-Employee Directors, restated as
              of April 27, 1995 (incorporated by reference to Exhibit 10.5.2 to the Company's Report on
              Form 10-Q for the quarter ended June 30, 1995).*

   10.8       Orbital Communications Corporation Restated 1992 Stock Option Plan, restated as of September
              12, 1995 (incorporated by reference to Exhibit 10.8 to the Company's Annual Report on Form
              10-K for the fiscal year ended December 31, 1995).

1 0.8.1       Amendment to Orbital Communications Corporation Restated 1992 Stock Option Plan, dated
              February 5, 1997 (previously filed).*

   10.9       Orbital Sciences Corporation 1995 Deferred Compensation Plan (incorporated by reference to
              Exhibit 10.9 to the Company's Annual Report on Form 10-K for the fiscal year ended December
              31, 1995).*

  10.10       Magellan Corporation 1996 Stock Option Plan (incorporated by reference to Exhibit 10.3 to the
              Company's Report on Form 10-Q for the quarter ended June 30, 1996).*

  10.11       Orbital Imaging Corporation 1996 Stock Option Plan (previously filed).*

  10.12       Form of Executive Employment Agreement entered into between the Company and Executive
              Officers and certain other Officers of the Company (incorporated by reference to Exhibit
              10.17 to the Company's Registration Statement on Form S-1 (File Number 33-33453) filed on
              February 9, 1990 and effective on April 24, 1990).*

10.12.1       Performance Share Agreement dated October 23, 1996 between the Company and Mr. D. W. Thompson
              (previously filed).*

  10.13       Form of Indemnification Agreement entered into between the Company and Directors, Executive
              Officers and certain other Officers of the Company (incorporated by reference to Exhibit
              10.18 to the Company's Registration Statement on Form S-1 (File Number 33-33453) filed on
              February 9, 1990 and effective on April 24, 1990).*

10.13.1       Amendment dated October 22, 1992 to form of Indemnification Agreement entered into between
              the Company and Directors, Executive Officers and certain other Officers of the Company
              (incorporated by reference to Exhibit 19 to the Company's Report on Form 10-Q for the Quarter
              Ended September 30, 1992).*

  10.14       Participation Agreement dated August 20, 1992 by and between ITT Commercial Finance Corp. and
              the Company, as amended through August 26, 1992 (incorporated by reference to Exhibit 19.14
              to Amendment No. 2 to the Company's Report on Form 10-Q for the Quarter Ended September 30,
              1992).

  10.15       Master Agreement, restated as of September 12, 1995, by and among the Company, OCC, Teleglobe
              Inc. and Teleglobe Mobile Partners (incorporated by reference to Exhibit 10. to ORBCOMM
              Global L.P.'s Registration Statement on Form S-4 (File Number 333-11149) filed on August 30,
              1996.

  10.16       Restated Agreement of Limited Partnership of ORBCOMM Global, L.P., dated as of September 12,
              1995, between OCC and Teleglobe Mobile Partners (incorporated by reference to Exhibit 3.2 to
              ORBCOMM Global L.P.'s Registration Statement on Form S-4 (File Number 333-11149) filed on
              August 30, 1996.

10.16.1       Amendment No. 1 to Restated Agreement of Limited Partnership of ORBCOMM Global, L.P., dated
              December 2, 1996 (previously filed).

  10.17       Restated Agreement of Limited Partnership of ORBCOMM USA, L.P., dated as of September 12,
              1995 between Orbital Communications Corporation and ORBCOMM Global (incorporated by reference
              to Exhibit 3.4. to ORBCOMM Global L.P.'s Registration Statement on Form S-4 (File Number
              333-11149) filed on August 30, 1996.

  10.18       Support Agreement between the Company and MacDonald, Dettwiler Holdings, Inc., dated November
              17, 1995 (incorporated by reference to Exhibit 10.19 to the Company's Annual Report on Form
</TABLE>


                                       51
<PAGE>   55

<TABLE>
<S>        <C>
           10-K for the fiscal year ended December 31, 1995)

     11    Statement re: Computation of Earnings Per Share (transmitted herewith).

     21    Subsidiaries of the Company (previously filed).

   23.1    Consent of KPMG  LLP (transmitted herewith).

   23.2    Consent of KPMG LLP with respect to financial statements of ORBCOMM Global, L.P. (transmitted
           herewith).

     27    Financial Data Schedule for year ended December 31, 1996 (such schedule is furnished for the
           information of the Securities and Exchange Commission and is not to be deemed "filed" as part of
           the Form 10-K/A or therwise subject to the liabilities of Section 18 of the Securities Exchange
           Act of 1934) (transmitted herewith).
</TABLE>

----------
* Management Contract or Compensatory Plan or Arrangement.




                                       52


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