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Orbital Sciences Corporation
Type	Public (NYSE: ORB)
Founded	1982
Headquarters	Dulles, Virginia
Key people	David W. Thompson, CEO J.R. Thompson, COO Garrett E. Pierce, CFO
Industry	Aerospace and Defense
Products	Space Launch Vehicles, Missile Defense Systems, Satellites and Related Systems, Advanced Space Systems, Space Technical Services, Transportation Management Systems
Revenue	$703.45M USD (FY 2005)
Employees	2,900 (2006)
Divisions	Launch Systems Group Space Systems Group Advanced Programs Group Transportation Management Systems
Slogan	The Leader in Small Space and Rocket Systems
Website	www.orbital.com

Orbital Sciences Corporation (OSC, though commonly referred to as Orbital) is a Dulles, Virginia company which specializes in satellite launch and manufacture. Its Launch Systems Group is heavily involved with missile defense launch systems. Orbital formerly owned ORBIMAGE (now GeoEye) and the Magellan line of GPS receivers, though they are now divested (the latter to Thales). Orbital's NYSE ticker symbol is ORB. This company should not be confused with the Australian Orbital.

Contents 1 History 2 Orbital Products 2.1 Satellite launch vehicles 2.2 Experimental vehicles 2.3 National and theater missile defense 2.4 Satellites 2.5 Client Countries 2.6 Other 3 Launch Sites 4 Orbital Transportation Management Systems 5 Space Systems Group 6 References 7 External links

Orbital was founded in 1982 by David Thompson, Bruce Ferguson and Scott Webster. In 1990, the company successfully carried out eight space missions, highlighted by the initial launch of the Pegasus rocket, the world's first privately-developed space launch vehicle. In 2006 Orbital conducted its 500th mission since the company’s founding.

• Minotaur
• Pegasus
• Taurus
• OSP-2 Minotaur IV, a satellite launching version of the LG-118A Peacekeeper

• X-34 reusable launch vehicle demonstrator

• Ground-based Midcourse Defense (GMD) Orbital Boost Vehicle (OBV) for the Army's Missile Defense Agency (MDA)
• Kinetic Energy Interceptors (KEI)
• Ballistic target vehicles
• Suborbital rocket testbeds

• GEO satellites
• LEO satellites
• Planetary probes

STAR 2 platform

At its Dulles, Virginia plant Orbital builds medium-sized spacecraft based on the company's STAR 2 platform. Both payloads of a recent Ariane 5 launch — Optus D2 and Intelsat 11 were built on the STAR 2 platform.^[1]

• Australia
• France
• Indonesia
• Japan
• Malaysia
• Netherlands
• Norway
• Pakistan
• Philippines
• Taiwan
• United States

• DART Rendezvous Vehicle
• Hyper-X
• Orbital Space Plane
• Crew Exploration Vehicle (within the team of Lockheed Martin)
• NASA's Dawn Mission
• GQM-163A Coyote

Orbital's launch vehicles have been staged from many sites worldwide. These include:

• Vandenberg Air Force Base (VAFB) in California
• Cape Canaveral Air Force Station (CCAS) in Florida
• Wallops Flight Facility (WFF) in Virginia
• Kodiak Launch Complex in Alaska
• Edwards Air Force Base in California
• Kwajalein Atoll in the Marshall Islands
• Canary Islands in Spain
• Pacific Missile Range Facility (PMRF) in Hawaii

Located in Columbia, Maryland, Orbital's spinoff division, commonly abbreviated "TMS", stemmed from Orbital's expertise in satellite and GPS technology. Orbital TMS provides GPS tracking systems for public transportation (i.e. bus) fleets in major cities around the world. Recent and current projects include San Diego, Las Vegas, and Singapore.

Orbital Transportation Management Systems (TMS) is a leading integrator of products for fleet management, workforce management, mobile data communications, data management and advanced traveler information systems (ATIS). TMS provides integrated Computer Aided Dispatch/Automated Vehicle Location (CAD/AVL) solutions for fixed-route transit as well as non-revenue vehicle location applications using radio, cellular, and satellite-based communications networks.

Orbital TMS's fleet management systems help public transit authorities improve municipal transportation efficiency and emergency response performance. These fully-integrated, real-time information systems are designed for use in fixed-route buses, paratransit vehicles, maintenance and supervisory vehicles, light rail systems and trolleys. They feature mobile communications, GPS-based automatic vehicle location (AVL), computer-aided dispatching (CAD) and two-way messaging.

[June 6, 2001] Orbital's Space Systems Group designs, manufactures and supports the operation of low-orbit and geosynchronous orbit satellites and related spacecraft systems. During the last five years, SSG has successfully developed, built, tested and deployed 46 satellites; the group currently has 15 additional satellites under design or in production.^{[citation needed]} SSG also provides space-related technical services to NASA, the Department of Defense, and other U.S. Government agencies. SSG currently employs approximately 1,000 people and generated revenues of over $200 million in 2000.

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• Orbital Sciences Corporation page
• Orbital Transportation Management Systems