USA-131Rocket launchby USALaunch time4 Apr 199716:47 UTCsuccessOrbit: LEOSerial number: 23G-6MissionRocketPayloadsRocket TitanII(23)G/Star-37Slaunched from Vandenberg AFB, SLC-4WUSAPayloadsNamePurposeMassCommentUSA-131 (DMSP)---