Transit 4ARocket launchby USALaunch time29 Jun 196104:22 UTCsuccessOrbit: LEOSerial number: Thor 315MissionRocketPayloadsRocket ThorDM-21 Ablestarlaunched from Cape Canaveral, LC-17BUSAPayloadsNamePurposeMassCommentGRAB-3 (Solrad 3)ELINT--Injun 1Ionospheric--Transit 4ANavigation--