Progress M-56 approaching the ISS
|Mission type||ISS resupply|
|Spacecraft type||Progress-M 11F615A55|
|Start of mission|
|Launch date||24 April 2006, 16:03:25 UTC|
|Launch site||Baikonur Site 1/5|
|End of mission|
|Decay date||19 September 2006, 04:14:40 UTC|
|Docking with ISS|
|Docking port||Zvezda Aft|
|Docking date||26 April 2006, 17:41:31 UTC|
|Undocking date||19 September 2006, 00:28:17 UTC|
|Time docked||5 months|
Progress M-56, identified by NASA as Progress 21 or 21P, was a Progress spacecraft used to resupply the International Space Station. It was a Progress-M 11F615A55 spacecraft, with the serial number 356.
Progress M-56 was launched by a Soyuz-U carrier rocket from Site 1/5 at the Baikonur Cosmodrome. Launch occurred at 16:03:25 GMT on 24 April 2006. The spacecraft docked with the Aft port of the Zvezda module at 17:41:31 GMT on 26 April. It remained docked for five months before undocking at 00:28:17 GMT on 19 September 2006 to make way for Soyuz TMA-9. It was deorbited at 03:28 GMT on 19 September 2006. The spacecraft burned up in the atmosphere over the Pacific Ocean, with any remaining debris landing in the ocean at around 04:14:40 GMT.
Progress M-56 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 2009-06-05.
- Anikeev, Alexander. "Cargo spacecraft "Progress M-56"". Manned Astronautics - Figures & Facts. Retrieved 2009-06-05.
- Wade, Mark. "Progress M". Encyclopedia Astronautica. Retrieved 2009-06-05.
- Zak, Anatoly. "Progress cargo ship". RussianSpaceWeb. Retrieved 2009-06-05.
- McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 2009-06-05.