USA-270/271Rocket launchby USALaunch time19 Aug 201604:52 UTCsuccessSerial number: Delta 375Space surveillance satellite.MissionRocketPayloadsRocket DeltaIV M+launched from Cape Canaveral, SLC-37BUSAPayloadsClassifiedNamePurposeMassCommentUSA-270/271 (AFSPC-6 (GSSAP #3/#4))---