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Orbital Sciences Corporation

From Alfawiki
Orbital Sciences Corporation
Company typePublic
IndustryAerospace
Founded1982; 44 years ago (1982)
FounderDavid W. Thompson, Bruce W. Ferguson, Scott L. Webster
Defunct2015 (2015)
FateMerged with Alliant Techsystems to form Orbital ATK
Headquarters
Dulles, Virginia
,
United States
Area served
Worldwide
Key people
David W. Thompson (CEO)
ProductsSatellites, launch vehicles, missile defense systems, crew space systems, satellite subsystems, technical support services
Number of employees
3,300 (2013)

Orbital Sciences Corporation—frequently referred to simply as Orbital—was a U.S.-based aerospace firm focused on the engineering, production, and deployment of small to medium-sized space and launch vehicle systems catering to commercial, defense, and governmental sectors. Established in 1982 by David W. Thompson, Bruce W. Ferguson, and Scott L. Webster, the company was headquartered in Dulles, Virginia and listed on the New York Stock Exchange under the symbol ORB.

The company’s primary offerings encompassed satellites designed for low Earth orbit (LEO), geosynchronous orbit, and planetary exploration missions supporting communication, earth observation, scientific research, and defense applications. Orbital’s product lineup also included both ground- and air-launched launch vehicles, missile defense interceptors and target vehicles, as well as crew-capable space systems for missions in Earth orbit and lunar operations. Moreover, Orbital delivered satellite subsystems alongside technical support services to various government organizations.

In April 2014, Orbital revealed plans to merge with Alliant Techsystems (ATK), culminating in the creation of Orbital ATK by February 2015. This merger broadened its market presence and diversified its aerospace portfolio significantly. Later, in June 2018, Northrop Grumman acquired Orbital ATK for $7.8 billion plus $1.4 billion in assumed debt, integrating it into Northrop Grumman Innovation Systems—rebranded as Space Systems in 2020 following corporate restructuring.

By 2013, Orbital reported revenues of $1.365 billion with operating profits of $113 million and net earnings of $68 million. The workforce numbered around 3,300 employees dedicated to advancing space technology under the leadership of CEO David W. Thompson. Through strategic acquisitions and continuous innovation, Orbital established itself as a formidable competitor within the international aerospace industry prior to its absorption into larger corporate entities.

History

Founded in 1982 by Harvard Business School alumni David W. Thompson, Bruce Walker Ferguson, and Scott L. Webster—with initial capital from Texas entrepreneurs Fred C. Alcorn and Sam Dunnam—Orbital began its journey securing a contract from NASA in 1985 to supply up to four transfer orbital stage (TOS) vehicles. By 1987, it initiated development of the Orbcomm satellite network concept utilizing low Earth orbit satellites for remote data transmission. The company expanded its rocket production capabilities in 1988 by acquiring Space Data Corporation, a key suborbital rocket manufacturer, followed by the establishment of a new manufacturing facility in Chandler, Arizona in 1989.

In 1990, Orbital executed eight space missions including the launch of Pegasus—the first privately developed space launch vehicle—though it benefited from substantial NASA and DARPA funding. That same year marked Orbital’s initial public offering (IPO) with shares trading on NASDAQ. The firm relocated its headquarters to Dulles, Virginia in 1993 and successfully launched the Taurus rocket (now known as Minotaur-C) in 1994.

Throughout the early 2000s, Orbital grew its missile defense segment with a $900 million contract to develop interceptor booster vehicles. By 2006, it had completed its 500th mission spanning satellites, launch vehicles, and missile defense systems. A landmark achievement occurred in 2007 when Orbital launched Dawn—their inaugural interplanetary probe targeting the asteroid belt. In 2008, Orbital secured a $1.9 billion NASA contract to deliver cargo to the International Space Station (ISS) from 2011 through 2015. Utilizing its Cygnus spacecraft alongside the Antares launch vehicle, Orbital conducted ISS resupply missions following successful flights such as Cygnus Orb-D1 and Cygnus CRS Orb-1.

Acquisitions

Throughout the 1990s and 2000s, Orbital Science strategically grew its footprint in the satellite industry by executing significant acquisitions.

In 1994, Orbital acquired the Space and Defense Corporation division from Fairchild Industries, integrating this space enterprise with its own satellite design and production operations. The electronics portion of this acquired division was later sold in 2000 for $100 million.

Orbital expanded further in 1997 by acquiring CTA, Inc., a company led by spacecraft engineer Tom van der Heyden, known for creating the GEOStar satellite platform. This move granted Orbital access to the expanding Geosynchronous (GEO) communications satellite sector, including Asia’s pioneering Direct Broadcast Satellite (DBS) initiative and the world’s inaugural S-Band television broadcast satellite.

In 2010, Orbital enhanced its manufacturing capabilities by purchasing General Dynamics’ satellite development team based in Gilbert, Arizona, formerly Spectrum Astro, which complemented its main production site in Dulles, Virginia.

Merger

On April 29, 2014, Orbital Sciences and Alliant Techsystems (ATK) announced a merger of their Aerospace and Defense divisions, resulting in a $4.5 billion company named Orbital ATK, Inc., employing approximately 13,000 personnel.

In September 2017, Northrop Grumman revealed intentions to acquire Orbital ATK for $7.8 billion in cash along with $1.4 billion in assumed debt. This transaction received shareholder approval in November 2017 and Federal Trade Commission clearance in June 2018. Following the acquisition, Orbital ATK was integrated into Northrop Grumman Innovation Systems.

Space Systems Group (SSG)

Established in 1982, Orbital specialized in designing and producing small- to medium-sized satellites, delivering around 150 spacecraft to clients across commercial, military, and civil sectors worldwide. Collectively, these satellites have amassed over a millennium of operational time in orbit.

Orbital’s portfolio includes compact and cost-efficient communications and imaging satellites that serve markets such as direct-to-home digital television, enterprise data transmission, cable distribution networks, and wireless communication services. The company pioneered low Earth orbit satellite constellations like the 35-satellite ORBCOMM system and contributed 81 satellites to the IridiumNEXT network. Its Earth observation products feature the high-resolution OrbView series.

The company also held a leading role in developing scientific and environmental satellites, supporting NASA with more missions than any other contractor during the past ten years. Their offerings span deep space exploration missions such as the Dawn spacecraft, remote sensing platforms including Landsat 4, 5, and 8, as well as technology demonstration satellites.

Launch Systems Group (LSG)

Orbital’s launch vehicle portfolio has established benchmarks for deploying small payloads into orbit. The Pegasus rocket—air-launched from the L-1011 carrier aircraft known as Stargazer—has successfully completed 40 launches globally since its debut in 1990, providing a dependable solution for small satellite deployment.

The Minotaur series merges Pegasus upper stages with diverse first-stage rocket motors to accommodate larger payloads. Minotaur IV employs refurbished Peacekeeper missile motors combined with Orbital avionics to increase payload capacity for government missions.

For medium-class launch capabilities aimed at U.S. government agencies, commercial clients, and international customers, Orbital developed the Antares launch vehicle. Antares conducted its inaugural flight on April 21, 2013, from Virginia’s Wallops Flight Facility.

Additionally, Orbital plays a vital role as a supplier of suborbital target and interceptor launch systems supporting U.S. missile defense initiatives. Over the past decade, it has executed nearly fifty launches for organizations including the Missile Defense Agency, Air Force, Army, and Navy to advance missile defense technologies.

Advanced Programs Group (APG)

Orbital's Advanced Programs Group specializes in creating human-rated space systems, satellites, and sophisticated flight technologies for both national security and atmospheric applications. It plays a crucial role in NASA's commercial cargo deliveries to the International Space Station (ISS), utilizing its mid-class Antares launch vehicle to deploy the Cygnus spacecraft. Under NASA's Commercial Resupply Services (CRS) agreement, Orbital committed to conducting eight cargo missions, initiating operations in 2013 from the Mid-Atlantic Regional Spaceport (MARS) located in Virginia. The company is also investigating modifications of the Cygnus platform for expanded roles in space exploration.

In the realm of national defense, Orbital provides a variety of spacecraft buses and hosted payload platforms. For advanced propulsion systems, the company is developing an intermediate-class air-launched rocket for Stratolaunch Systems, managing all aspects including design, manufacturing, testing, and operational support for the complete system and its ground infrastructure.

Technical Services Division (TSD)

The Technical Services Division delivers specialized engineering, production, and technical management capabilities tailored to space science and defense initiatives. Its experts frequently collaborate closely with client technical teams, contributing to projects ranging from servicing NASA’s Hubble Space Telescope to creating high-energy microwave transmitters for the National Radio Astronomy Observatory (NRAO).

Transportation Management Systems (TMS)

TMS integrated satellite-based navigation with wireless communication technologies to enhance dispatch operations for public transit and highway service fleets. By 2008, TMS solutions were employed by over 60 clients, overseeing more than 27,500 vehicles—accounting for over 30% of fleets across the United States and Canada—including major metropolitan areas such as Los Angeles, Chicago, and Washington, D.C. In that year, Orbital divested TMS to Affiliated Computer Services (ACS) Inc. for $42.5 million, transferring approximately 130–140 employees located in Columbia, Maryland.

Primary facility locations

Orbital operates key sites at:

Space launch vehicles

  • Minotaur – Combines government-provided motors with Orbital’s commercial technology to deliver cost-effective access to space for government payloads.
    • Minotaur I – Debuted in January 2000 using leftover Minuteman boosters; has completed 11 missions flawlessly with 62 satellites launched.
    • Minotaur IV – Employs Peacekeeper solid rocket stages alongside a commercial Orion 38 fourth stage; capable of placing over 1,750 kg into orbit. Since its first flight in 2010, it has successfully completed five missions carrying nine satellites and two hypersonic test vehicles.
    • Minotaur V – A five-stage modification of Minotaur IV designed for high-energy trajectories such as Geosynchronous Transfer Orbit (GTO) and lunar missions. Its maiden flight successfully delivered NASA’s LADEE spacecraft in 2013.
    • Minotaur VI – Enhances Minotaur IV by adding a lower stage to increase payload capacity up to 2,600 kg to Low Earth Orbit; an optional upper stage can be included for missions requiring higher energy.
    • Minotaur-C – Commercial variant targeting U.S. government customers; has achieved six successful launches out of nine attempts.
  • Pegasus – A three-stage air-launched vehicle that deploys small satellites weighing up to 1,000 pounds into low Earth orbit. Released from the "Stargazer" L-1011 aircraft at an altitude of 40,000 feet, Pegasus has flown 42 missions since 1990 with a record of 37 successful launches.
  • Pegasus II – An air-launched orbital rocket under development between 2012 and 2015; the program was discontinued by Stratolaunch in 2015.
  • Antares – A two-stage launcher designed for medium-class payloads up to 6,120 kilograms. Initially created for NASA ISS resupply contracts utilizing refurbished Soviet-era engines. Its inaugural flight occurred in April 2013 from Wallops Flight Facility. The fifth launch in October 2014 resulted in failure causing destruction of the vehicle and damage to the launch pad.
  • Antares follow-on – Following the 2014 failure, Orbital replaced the aging AJ-26 engines with new Russian RD-181 engines supplied under contract by NPO Energomash. While Antares II is being developed, Orbital arranges alternative launch services to support Cygnus cargo missions to the ISS.

Commercial Resupply Services (CRS) to ISS

After the 2013 successful demonstration of the Cygnus spacecraft alongside the Antares launch vehicle within the framework of the Commercial Orbital Transportation Services (COTS) initiative, Orbital commenced routine cargo missions to the ISS under a $1.9 billion NASA CRS agreement covering eight pressurized cargo deliveries. The Cygnus vehicle is capable of transporting up to 2,000 kg of pressurized supplies, with an upgraded variant increasing capacity to 2,700 kg for subsequent flights. The inaugural CRS mission concluded on February 18, 2014. However, a launch failure occurred on October 28, 2014, during the third mission contracted under this program.

Missile Defense Systems – interceptors and targets

Orbital’s Missile Defense Systems division specializes in producing interceptors and target vehicles for U.S. defense initiatives:

  • Ground-Based Interceptor – Orbital serves as the exclusive provider of interceptor boosters for the U.S. Missile Defense Agency’s Ground-Based Midcourse Defense (GMD) program, aimed at intercepting long-range ballistic missiles during their midcourse phase. The company designs and tests the three-stage Orbital Boost Vehicle (OBV), which is based on Pegasus, Taurus, and Minotaur booster technologies and deployed in missile silos located in Alaska and California.
  • Ballistic Missile Targets – Orbital supplies a variety of target vehicles utilized for testing MDA defense systems, including air-launched Intermediate-Range Ballistic Missile (IRBM) targets as well as ground-launched Intercontinental Ballistic Missile (ICBM) targets.
  • GQM-163A “Coyote” Anti-Ship Cruise Missile Target – This target replicates Anti-Ship Cruise Missiles by flying at speeds greater than Mach 2.5, performing low-altitude sea-skimming maneuvers as well as high-diving trajectories to support naval defense system evaluations.

Communications satellites

GEO communications satellites
Leveraging its proprietary GEOStar-2 bus, Orbital is a prominent manufacturer of geostationary communications satellites delivering between 1.5 and 5.5 kW of payload power. These satellites serve applications such as direct-to-home television, cable distribution networks, enterprise data communications, and regional mobile services. The advanced GEOStar-3 platform offers enhanced performance with payload power capacity up to 8 kW. Notable GEOStar satellites produced by Orbital include:

LEO communications satellites

ORBCOMM

Orbital pioneered the development and deployment of the ORBCOMM constellation, recognized as the first worldwide LEO satellite communications network. From 1994 through 1999, Orbital launched a total of 35 satellites and established five gateway ground stations along with a network operations center responsible for system management.

Iridium NEXT

In partnership with Thales Alenia Space, Orbital undertakes integration and testing tasks for Iridium NEXT, the next-generation LEO satellite constellation operated by Iridium Communications Inc. At its Gilbert, Arizona facility, Orbital assembles both communication payloads and satellite platforms for all 81 spacecraft, supporting the company’s expansion in global mobile connectivity services.

Imaging satellites

Orbital's imaging spacecraft provide commercial Earth observation solutions, with the OrbView series laying the groundwork for the commercial satellite imaging industry. The company was responsible for creating the high-resolution GeoEye-1 satellite. Its LEOStar-2 and LEOStar-3 platforms accommodate a variety of multispectral, visible spectrum, and thermal imaging instruments. Prominent commercial imaging satellites include:

Science and environmental satellites

Orbital manufactures satellites for scientific research and environmental monitoring, supporting missions in astrophysics, remote sensing, heliophysics, planetary science, and technology validation. These spacecraft utilize the LEOStar-1, -2, or -3 platforms depending on mission requirements and budget constraints.

Astrophysics satellites
Significant astrophysics missions include:

Remote sensing/Earth observation
Key satellites dedicated to remote sensing include:

Heliophysics
Noteworthy heliophysics satellites include:

Planetary exploration
Missions focused on planetary exploration encompass:

  • Dawn, developed for NASA/JPL, launched in 2007
  • Deep Space 1, created by NASA/JPL, launched in 1998

National security systems

Orbital develops national security solutions featuring compact, budget-friendly spacecraft platforms, such as disaggregated architectures and hosted payloads. The company advocates for disaggregated configurations to lower expenses and accelerate the creation and deployment of space assets for national defense. A prime example is the GEOStar-1 satellite bus, a streamlined design tailored for geostationary orbit missions but also adaptable for medium Earth orbit. This platform supports launches on vehicles like Minotaur, Falcon, and EELV, enabling robust mission capabilities within a timeframe measured in years rather than decades.

The hosted payload initiative by Orbital enhances national security efforts through projects such as the Commercially Hosted Infrared Payload (CHIRP) developed for the U.S. Air Force. This broad-area sensor was integrated onto a commercial geostationary communications satellite constructed by Orbital. By utilizing frequent commercial satellite launch opportunities and surplus onboard capacity, Orbital delivers affordable and prompt access to space tailored for defense-related objectives.

Advanced flight systems

Within its advanced flight systems segment, Orbital holds a contract with Stratolaunch Systems to engineer a mid-sized rocket designed for deployment from Stratolaunch’s carrier aircraft—the largest ever constructed. Orbital is responsible for the comprehensive scope of this air-launch program, including systems engineering, development, manufacturing, testing, operational support, and payload integration, aiming for a demonstration flight slated for 2017.

Previously, Orbital contributed to pioneering aerospace initiatives such as NASA’s X-34 and X-43 experimental vehicles along with the Orion Launch Abort System. These endeavors underscore Orbital’s prominent role in advancing cutting-edge aerospace technologies.

External links

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