Explorer 10Rocket launchby USALaunch time25 Mar 196115:17:04 UTCsuccessOrbit: HEOSerial number: Delta 4MissionRocketPayloadsRocket DeltaThor DM-19 Deltalaunched from Cape Canaveral, LC-17AUSAPayloadsNamePurposeMassCommentExplorer 10Magnetospheric--