Kosmos 28Rocket launchby RussiaLaunch time4 Apr 196409:45 UTCsuccessSerial number: G15001-04MissionRocketPayloadsRocket Vostok2launched from Baikonur Cosmodrome, Pad 31/6KazakhstanPayloadsNamePurposeMassCommentKosmos 28 (Zenit-2)---