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United Launch AllianceLaunch SuccessfulGovernment/Top SecretAtlas V 501
Launched 2015-05-20 15:05 UTCSpace Launch Complex 41, Cape Canaveral SFS, FL, USA
Success
Reached Low Earth Orbit
Worldwide
27th
orbital launch attempt in 2015
United Launch Alliance
5th
launch this year
Space Launch Complex 41
3rd
launch from this pad this year
Pad turnaround
68 d 12 h
since the pad's previous launch
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.
Launch Provider
Commercial · United States of America · Founded 2006 · CEO Mark Peller
United Launch Alliance (ULA) is a joint venture of Lockheed Martin Space Systems and Boeing Defense, Space & Security. ULA was formed in December 2006 by combining the teams at these companies which provide spacecraft launch services to the government of the United States. ULA launches from both coasts of the US. They launch their Atlas V vehicle from LC-41 in Cape Canaveral and LC-3E at Vandeberg. Their Delta IV launches from LC-37 at Cape Canaveral and LC-6 at Vandenberg.
Launches
175
Successful
175
100%
Upcoming
72
scheduled
Height
58.3m
Diameter
3.8m
To low Earth orbit
8,210kg
Liftoff thrust
3,827kN
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