KH-4BRocket launchby USALaunch time4 Dec 196921:37 UTCsuccessOrbit: LEOSerial number: Thor 549MissionRocketPayloadsRocket Thorad SLV-2H Agena-Dlaunched from Vandenberg AFB, SLC-3WUSAPayloadsNamePurposeMassCommentKH-4B (S/N 1108)Reconnaissance--