Discoverer 19Rocket launchby USALaunch time20 Dec 196020:32 UTCsuccessOrbit: LEOSerial number: Thor 258MissionRocketPayloadsRocket ThorDM-21 Agena-Blaunched from Vandenberg AFB, LC-75-3-5USAPayloadsNamePurposeMassCommentDiscoverer 19Technology--