Atlas V 501
This page records Atlas V 501 | OTV-4 (X-37B) (USA 261) (AFSPC-5) & ULTRASat cubesat deployer and its reported outcome: Launch Successful. The date above is a historical record.
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Status reported by the mission data provider.
It is the second flight of the second Boeing X-37B vehicle and the fourth flight of the program. United States Air Force Orbital Test Vehicle is an unmanned 5000 kg, 8.8 m-long reusable mini-spaceplane capable of autonomous re-entry and landing. The OTV-4 mission was to test Aerojet Rocketdyne's XR-5A Hall-effect thruster and conduct a NASA investigation for testing various materials in space. The mission concluded after 717 days in orbit, marking the first time X-37B landed on the Shuttle Landing Facility at the Kennedy Space Center.
Published configuration and flight history.
Atlas V with 5m Fairing, 0 SRB, 1 Centaur upper stage engine.
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Target ·
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Cape Canaveral SFS, FL, USA
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Links supplied by the mission data provider.
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