Kosmos 1873Rocket launchby RussiaLaunch time28 Aug 198708:20 UTCsuccessOrbit: LEOTest flight; Test flight of Zenit-2 rocket with maximum payload.MissionRocketPayloadsRocket Zenit2launched from Baikonur Cosmodrome, Pad 45/1KazakhstanPayloadsNamePurposeMassCommentKosmos 1873 (EPN 03.0695 #4) (Mass simulator)---