Explorer 12Rocket launchby USALaunch time16 Aug 196103:21:05 UTCsuccessOrbit: HEOSerial number: Delta 6MissionRocketPayloadsRocket DeltaThor DM-19 Deltalaunched from Cape Canaveral, LC-17AUSAPayloadsNamePurposeMassCommentExplorer 12Magnetospheric--