Progress M-55 (russian: Прогресс М-55, italic=yes), identified by

NASA The National Aeronautics and Space Administration (NASA ) is an independent agency of the US federal government responsible for the civil space program, aeronautics research, and space research. NASA was established in 1958, succeeding t ...

as Progress 20P, was a

Progress Progress is the movement towards a refined, improved, or otherwise desired state. In the context of progressivism, it refers to the proposition that advancements in technology, science, and social organization have resulted, and by extension wi ...

spacecraft used to resupply the

International Space Station The International Space Station (ISS) is the largest modular space station currently in low Earth orbit. It is a multinational collaborative project involving five participating space agencies: NASA (United States), Roscosmos (Russia), JAXA ...

. It was a

Progress-M Progress-M (russian: Прогресс-М, GRAU indices 11F615A55 and 11F615A60), also known as Progress 7K-TGM, is a Russian, previously Soviet spacecraft which is used to resupply space stations. It is a variant of the Progress spacecraft, or ...

11F615A55 spacecraft, with the

serial number A serial number is a unique identifier assigned incrementally or sequentially to an item, to ''uniquely'' identify it. Serial numbers need not be strictly numerical. They may contain letters and other typographical symbols, or may consist enti ...

355.

Launch

Progress M-55 was launched by a

Soyuz-U The Soyuz-U launch vehicle was an improved version of the original Soyuz rocket. Soyuz-U was part of the R-7 family of rockets based on the R-7 Semyorka missile. Members of this rocket family were designed by the TsSKB design bureau and cons ...

carrier rocket from Site 1/5 at the

Baikonur Cosmodrome The Baikonur Cosmodrome ( kk, Байқоңыр ғарыш айлағы, translit=Baiqoñyr ğaryş ailağy, ; russian: Космодром Байконур, translit=Kosmodrom Baykonur, ) is a spaceport in an area of southern Kazakhstan leased to R ...

. Launch occurred at 18:38:20 UTC on 21 December 2005.

Docking

The spacecraft docked with the '' Pirs'' module at 19:46:18 UTC on 23 December 2005. It remained docked for almost 179 days before undocking at 14:06:01 UTC on 19 June 2006 to make way for Progress M-57. It was deorbited at 17:06:01 UTC on 19 June 2006. The spacecraft burned up in the atmosphere over the

Pacific Ocean The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the continen ...

, with any remaining debris landing in the ocean at around 17:53:14 UTC. Progress M-55 carried supplies to the International Space Station, including food, water and oxygen for the crew and equipment for conducting scientific research.

References

2005 in spaceflight Progress (spacecraft) missions Spacecraft which reentered in 2006 Supply vehicles for the International Space Station Spacecraft launched by Soyuz-U rockets {{Russia-spacecraft-stub

Launch

Docking

See also

References