LAUNCH CENTER

Success

Wed May 20 2015

United Launch Alliance

OTV-4 (X-37B) (USA 261) ( AFSPC-5) & ULTRASat cubesat deployer

Launch Successful

Launch Time

(3:05 PM UTC)

Launch Window Start

(1:00 PM UTC)

Launch Window End

(5:00 PM UTC)

Location

No Recovery Specified

Type

No Recovery Specified

Atlas V 501

Atlas V with 5m Fairing, 0 SRB, 1 Centaur upper stage engine.

Type: Government/Top Secret
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.

Location

Cape Canaveral, FL, USA

Pad

Space Launch Complex 41