Progress M-SO1Rocket launchby RussiaLaunch time14 Sep 200123:34:55 UTCsuccessOrbit: LEOISS assembly mission 4R.MissionRocketPayloadsDockingRocket SoyuzUlaunched from Baikonur Cosmodrome, Pad 1/5KazakhstanPayloadsNamePurposeMassCommentPirs---Progress M-SO1---Docking to ISS Zvezda nadir(Pirs)Docked17 Sep 2001 01:05:00 UTCUndocked26 Sep 2001 15:36:00 UTCDeorbited26 Sep 2001 22:30:00 UTC