KH-4ARocket launchby USALaunch time22 Sep 196921:11 UTCsuccessOrbit: LEOSerial number: Thor 531MissionRocketPayloadsRocket Thorad SLV-2G Agena-Dlaunched from Vandenberg AFB, SLC-3WUSAPayloadsNamePurposeMassCommentKH-4A (S/N 1052)/SRV S/N 743RReconnaissance--