Intelsat 4A F6Rocket launchby USALaunch time31 Mar 197823:36:01 UTCsuccessOrbit: GTOSerial number: AC-48MissionRocketPayloadsRocket AtlasCentaur SLV-3Dlaunched from Cape Canaveral, LC-36BUSAPayloadsNamePurposeMassCommentIntelsat 4A F6Comsat--