Intelsat 4 F3Rocket launchby USALaunch time20 Dec 197101:10:04 UTCsuccessOrbit: GTOSerial number: AC-26MissionRocketPayloadsRocket AtlasCentaur SLV-3Claunched from Cape Canaveral, LC-36AUSAPayloadsNamePurposeMassCommentIntelsat 4 F3Comsat--