USA-261 - rocket launch details

Launch time20 May 201515:05 UTC

success

Orbit: LEO

Serial number: AV-054

Fourth flight of the X-37 military spaceplane; cubesats.

Rocket AtlasV 501

launched from Cape Canaveral, SLC-41USA

Total mass 5000 kg

Name	Purpose	Mass	Comment
USA-261 (AFSPC-5 (X-37B OTV-4, ULTRASat))	-	-	-