Space Test Experiments Platform 2 (STEP-2)Pegasus HAPS
Orbital Sciences Corporation
Success
Air launch to orbit
Rimsat G2Proton
Khrunichev State Research and Production Space Center
Success
Baikonur Cosmodrome, Republic of Kazakhstan
Progress M-23Soyuz U
Russian Federal Space Agency (ROSCOSMOS)
Success
Baikonur Cosmodrome, Republic of Kazakhstan
Space Test Experiments Platform 1 (STEP-1)Pegasus XL
Orbital Sciences Corporation
Failure
Air launch to orbit
Soyuz TM-19Soyuz-U2
Russian Federal Space Agency (ROSCOSMOS)
Success
Baikonur Cosmodrome, Republic of Kazakhstan
Fanhui Shi Weixing (16)Long March 2D
China Aerospace Corporation
Success
Jiuquan Satellite Launch Center, People's Republic of China
US-KMO 3Proton
Khrunichev State Research and Production Space Center
Success
Baikonur Cosmodrome, Republic of Kazakhstan
STS-65Space Shuttle Columbia / OV-102
Lockheed Space Operations Company
Success
Kennedy Space Center, FL, USA
