Explorer 34Rocket launchby USALaunch time24 May 196714:06 UTCsuccessOrbit: HEOSerial number: Delta 49MissionRocketPayloadsRocket DeltaE1launched from Vandenberg AFB, SLC-2EUSAPayloadsNamePurposeMassCommentExplorer 34 (IMP-F)Interplanetary space research satellite--