Progress M-55 departing the ISS
|Mission type||ISS resupply|
|Spacecraft type||Progress-M 11F615A55|
|Start of mission|
|Launch date||21 December 2005, 18:38:20UTC|
|Launch site||Baikonur Site 1/5|
|End of mission|
|Decay date||19 June 2006, 17:53:14UTC|
|Docking with ISS|
|Docking date||23 December 2005, 19:46:18 UTC|
|Undocking date||19 June 2006, 14:06:01 UTC|
|Time docked||6 months|
Progress M-55, identified by NASA as Progress 20 or 20P, was a Progress spacecraft used to resupply the International Space Station. It was a Progress-M 11F615A55 spacecraft, with the serial number 355.
Progress M-55 was launched by a Soyuz-U carrier rocket from Site 1/5 at the Baikonur Cosmodrome. Launch occurred at 18:38:20 GMT on 21 December 2005. The spacecraft docked with the Pirs module at 19:46:18 GMT on 23 December. It remained docked for almost six months before undocking at 14:06:01 GMT on 19 June 2006 to make way for Progress M-57. It was deorbited at 17:06:01 GMT on 19 June 2006. The spacecraft burned up in the atmosphere over the Pacific Ocean, with any remaining debris landing in the ocean at around 17:53:14 GMT.
Progress M-55 carried supplies to the International Space Station, including food, water and oxygen for the crew and equipment for conducting scientific research.
- McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 2009-06-06.
- Anikeev, Alexander. "Cargo spacecraft "Progress M-55"". Manned Astronautics - Figures & Facts. Retrieved 2009-06-06.
- Wade, Mark. "Progress M". Encyclopedia Astronautica. Retrieved 2009-06-06.
- Zak, Anatoly. "Progress cargo ship". RussianSpaceWeb. Retrieved 2009-06-06.
- McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 2009-06-06.
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