Orbital ATK Supports Successful Launch of U.S. Air Force GPS Satellite Aboard ULA Atlas V Rocket

DULLES, Va.

Orbital ATK (NYSE: OA), a global leader in aerospace and defense technologies, supplied products from multiple company locations across the United States that helped enable the successful launch of both the United Launch Alliance (ULA) Atlas V vehicle and the GPS satellite that was deployed today from Cape Canaveral Air Force Station, Florida.

The 10^th GPS IIF satellite in the constellation will replace older, first-generation GPS satellites and provide improved accuracy, signal strength and quality to America’s warfighters, allies and civilian users worldwide. Boeing (NYSE: BA) designed and built the GPS IIF satellite for the U.S. Air Force.

“The Atlas V and GPS programs encompass the scope and scale of Orbital ATK’s highly engineered products and affordable innovation,” said Scott Lehr, President of Orbital ATK’s Flight Systems Group. “Both military and civilian GPS users around the world will benefit from increased capability as a result of our team’s collective dedication and execution excellence.”

The Orbital ATK components on both the Atlas V launch vehicle and GPS satellite utilize the latest technologies from multiple Orbital ATK facilities. These include large composite structures, retro motors, and state-of-the art solar arrays and other critical components on the GPS IIF satellite.

For the ULA Atlas V rocket, Orbital ATK produced the 10-foot diameter composite heat shield, which provides higher performance with lower weight, and essential protection for the first stage of the launch vehicle from engine exhaust temperatures in excess of 4,000 degrees Fahrenheit. Orbital ATK fabricated the assembly using advanced fiber placement manufacturing techniques at the company’s Iuka, Mississippi facility. This is the 55^th Atlas V launch using Orbital ATK-built composite structures.

This launch also marked the 20^th successful flight of Orbital ATK-produced retro motors. Eight of these solid motors supported separation of the spent first stage. The Atlas retrorocket is built at Orbital ATK’s facility in Elkton, Maryland.

For the GPS IIF-10 satellite, Orbital ATK provided a host of products and services.

• Orbital ATK’s Goleta, California facility designed and manufactured the satellite solar arrays and a deployment boom. Orbital ATK has achieved 100 percent on-orbit success on all solar arrays and deployable systems delivered and launched to date.
• Orbital ATK’s San Diego, California facility manufactured the composite solar array substrates.
• Orbital ATK’s Commerce, California facility had responsibility for the ullage tank assembly, including the blankets, heaters, thermistors and pressurant lines. This tank is a spherical vessel constructed of titanium.
• Orbital ATK’s Beltsville, Maryland facility provided heat pipes for the GPS IIF equipment and radiator panels.
• Orbital ATK’s Rancho Bernardo, California facility performed final assembly and RF (Radio Frequency) testing of the antenna suite for GPS IIF between 2003 and 2010.

The Block IIF series provides improved accuracy, enhanced internal atomic clocks, better anti-jam resistance, a civil signal for commercial aviation and a longer design life. The GPS IIF-10 satellite provides space-based system global location and time information in all weather conditions.

About Orbital ATK

Orbital ATK is a global leader in aerospace and defense technologies. The company designs, builds and delivers space, defense and aviation systems for customers around the world, both as a prime contractor and merchant supplier. Its main products include launch vehicles and related propulsion systems; missile products, subsystems and defense electronics; precision weapons, armament systems and ammunition; satellites and associated space components and services; and advanced aerospace structures. Headquartered in Dulles, Virginia, Orbital ATK employs more than 12,000 people in 20 states across the U.S. and in several international locations. For more information, visit www.orbitalatk.com.

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Orbital ATK, Inc.
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