OPS 8431Rocket launchby USALaunch time18 May 196518:02 UTCsuccessOrbit: LEOSerial number: Thor 438MissionRocketPayloadsRocket ThorTAT SLV-2A Agena-Dlaunched from Vandenberg AFB, LC-75-3-4USAPayloadsNamePurposeMassCommentOPS 8431 (KH-4A #1021)Reconnaissance--