KH-4ARocket launchby USALaunch time2 May 196901:46 UTCsuccessOrbit: LEOSerial number: Thor 544MissionRocketPayloadsRocket Thorad SLV-2G Agena-Dlaunched from Vandenberg AFB, SLC-3WUSAPayloadsNamePurposeMassCommentKH-4A (S/N 1051)/SRV S/N 739Reconnaissance--