KH-4BRocket launchby USALaunch time18 Nov 197021:29 UTCsuccessOrbit: LEOSerial number: Thor 552MissionRocketPayloadsRocket Thorad SLV-2H Agena-Dlaunched from Vandenberg AFB, SLC-3WUSAPayloadsNamePurposeMassCommentKH-4B (S/N 1112)Reconnaissance--