Progress M-SO1 approaching the ISS with Pirs
|Station crew||Expedition 3|
|Launch site||Baikonur Site 1/5|
|Launch date||14 September 2001
|Decay Date||27 September 2001
|Free flight time||2 days|
|Docked time||9½ days|
|Docking port||Zvezda Nadir (Pirs)|
|Docking date||17 September 2001
|Undocking date||26 September 2001
Progress M-SO1 was a modified Progress spacecraft used to deliver the Pirs module to the International Space Station. It was based on the Progress-M 11F615A55 spacecraft, with the pressurised cargo module removed to accommodate Pirs, and had the serial number 301.
Progress M-SO1 was launched by a Soyuz-U carrier rocket from Site 1/5 at the Baikonur Cosmodrome. Launch occurred at 23:34:55 GMT on 14 September 2001. The spacecraft docked with the Nadir port of the Zvezda module at 01:05 GMT on 17 September. It remained docked for nine and a half days before it was jettisonned from Pirs at 15:36 GMT on 26 September. It was deorbited at 23:30 GMT on the same day, and burned up in the atmosphere over the Pacific Ocean, with any remaining debris landing in the ocean at around 00:01 GMT on 27 September.
See also 
- Zak, Anatoly. "Progress cargo ship". RussianSpaceWeb. Retrieved 2009-06-07.
- McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 2009-06-07.
- Wade, Mark. "Progress M-SO". Encyclopedia Astronautica. Retrieved 2009-06-07.
- McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 2009-06-07.
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