Intelsat 4A F4Rocket launchby USALaunch time26 May 197721:47:01 UTCsuccessOrbit: GTOSerial number: AC-39MissionRocketPayloadsRocket AtlasCentaur SLV-3Dlaunched from Cape Canaveral, LC-36AUSAPayloadsNamePurposeMassCommentIntelsat 4A F4Comsat--