Expedition 20: Difference between revisions
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'''Expedition 20''' was the twentieth long-duration flight to the [[International Space Station]]. |
'''Expedition 20''' was the twentieth long-duration flight to the [[International Space Station]]. The expedition marked the first time a six-member crew inhabited the station. Because each [[Soyuz-TMA]] spacecraft can hold only three people, two separate launches were necessary: [[Soyuz TMA-14]] launched the Expedition 19 crew on 26 March 2009, and Soyuz TMA-15 on 27 May 2009. |
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[[Soyuz TMA-15]] launched from [[Baikonur Cosmodrome]] at 10:34 UTC on 27 May 2009.<ref name="launch">{{cite web|url=http://www.nasa.gov/mission_pages/station/expeditions/expedition20/launch.html|title=Expedition 20 Crew Launches from Baikonur|last=NASA HQ|date=24 May 2009|publisher=NASA|accessdate=4 June 2009}}</ref> The vehicle docked with the station on 29 May 2009, officially changing the station crew from [[Expedition 19]] to Expedition 20.<ref name="dock">{{cite web|url=http://www.nasa.gov/mission_pages/station/expeditions/expedition20/docking.html|title=Expedition 20 Crew Docks with Space Station|last=NASA HQ|date=29 May 2009|publisher=NASA|accessdate=4 June 2009}}</ref> |
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Expedition 20 marked the first time a six-member crew had inhabited the station. To accomplish the six-member crew, there were two separate [[Soyuz-TMA]] flights launched at two different times (each Soyuz-TMA can hold only three people): [[Soyuz TMA-14]] launched the Expedition 19 crew on 26 March 2009, and Soyuz TMA-15 on 27 May 2009. |
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Expedition 20's crew was lifted to the station in two separate |
Expedition 20's crew was lifted to the station in two separate Soyuz-TMA flights launched at two different times (each Soyuz-TMA can hold only three people): [[Soyuz TMA-14]] on 26 March 2009 and [[Soyuz TMA-15]] on 27 May 2009. However, the station would not be permanently occupied by six crew members all year. For example, when the Expedition 20 crew ([[Roman Romanenko]], [[Frank De Winne]] and [[Robert Thirsk|Bob Thirsk]]) returned to Earth in November 2009, for a period of about two weeks only two crew members ([[Jeffrey Williams (astronaut)|Jeff Williams]] and [[Maksim Surayev|Max Surayev]]) were aboard. This increased to five in early December, when [[Oleg Kotov]], [[Timothy Creamer]] and [[Soichi Noguchi]] arrived on [[Soyuz TMA-17]]. It decreased to three when Williams and Surayev departed in March 2010, and finally returned to six in April 2010 with the arrival of [[Soyuz TMA-18]], carrying [[Aleksandr Skvortsov (cosmonaut)|Aleksandr Skvortsov]], [[Mikhail Korniyenko]] and [[Tracy Caldwell Dyson]].<ref name="ISSEx"/><ref name="current"/> |
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[[Gennady Padalka]] was the first commander of a six-member station crew, and the first commander of two consecutive expeditions (Expedition 19 and 20). [[Nicole Stott]] was the final expedition astronaut to be launched on the shuttle. |
[[Gennady Padalka]] was the first commander of a six-member station crew, and the first commander of two consecutive expeditions (Expedition 19 and 20). [[Nicole Stott]] was the final expedition astronaut to be launched on the shuttle. |
Revision as of 08:14, 19 September 2011
Expedition 20 was the twentieth long-duration flight to the International Space Station. The expedition marked the first time a six-member crew inhabited the station. Because each Soyuz-TMA spacecraft can hold only three people, two separate launches were necessary: Soyuz TMA-14 launched the Expedition 19 crew on 26 March 2009, and Soyuz TMA-15 on 27 May 2009.
Soyuz TMA-15 launched from Baikonur Cosmodrome at 10:34 UTC on 27 May 2009.[1] The vehicle docked with the station on 29 May 2009, officially changing the station crew from Expedition 19 to Expedition 20.[2]
Expedition 20's crew was lifted to the station in two separate Soyuz-TMA flights launched at two different times (each Soyuz-TMA can hold only three people): Soyuz TMA-14 on 26 March 2009 and Soyuz TMA-15 on 27 May 2009. However, the station would not be permanently occupied by six crew members all year. For example, when the Expedition 20 crew (Roman Romanenko, Frank De Winne and Bob Thirsk) returned to Earth in November 2009, for a period of about two weeks only two crew members (Jeff Williams and Max Surayev) were aboard. This increased to five in early December, when Oleg Kotov, Timothy Creamer and Soichi Noguchi arrived on Soyuz TMA-17. It decreased to three when Williams and Surayev departed in March 2010, and finally returned to six in April 2010 with the arrival of Soyuz TMA-18, carrying Aleksandr Skvortsov, Mikhail Korniyenko and Tracy Caldwell Dyson.[3][4]
Gennady Padalka was the first commander of a six-member station crew, and the first commander of two consecutive expeditions (Expedition 19 and 20). Nicole Stott was the final expedition astronaut to be launched on the shuttle.
During the expedition, Koichi Wakata performed a special experiment wherein he did not change his underpants for one month, in order to test a specially-designed underwear without washing or changing; he reportedly did not develop body odor due to the effects of the special garment.[5]
Crew
(May to July 2009) |
(July to August 2009) |
(August to October 2009) | |
---|---|---|---|
Commander | Gennady Padalka, RSA Third spaceflight | ||
Flight Engineer 1 | Michael Barratt, NASA First spaceflight | ||
Flight Engineer 2 | Koichi Wakata, JAXA Third spaceflight |
Timothy Kopra, NASA First spaceflight |
Nicole Stott, NASA First spaceflight |
Flight Engineer 3 | Frank De Winne, ESA Second spaceflight | ||
Flight Engineer 4 | Roman Romanenko, RSA First spaceflight | ||
Flight Engineer 5 | Robert Thirsk, CSA Second spaceflight |
Backup crew
- Jeffrey Williams - Commander
- Maksim Surayev
- Timothy Creamer
- Catherine Coleman
- Chris Hadfield
- Dimitri Kondratyev
- André Kuipers
Extra-vehicular activity
Mission | Spacewalkers | Start (UTC) | End (UTC) | Duration |
---|---|---|---|---|
Expedition 20 EVA 1 ‡ |
Gennady Padalka Michael R. Barratt |
5 June 2009 7:52 |
5 June 2009 12:46 |
4 hours, 54 minutes |
Prepared the Zvezda service module transfer compartment for the arrival of the Poisk module, installed docking antenna for the module, photographed antenna for evaluation on the ground, and photographed the Strela-2 crane.[7][8] | ||||
Expedition 20 EVA 2 |
Gennady Padalka Michael R. Barratt |
10 June 2009 6:55 |
10 June 2009 7:07 |
12 minutes |
Internal spacewalk in the depressurised Zvezda transfer compartment, to replace one of the Zvezda hatches with a docking cone, in preparation for the docking of the Poisk module later in 2009. Poisk docked automatically to the zenith port of Zvezda on 12 November 2009, and serves as an additional docking port for Russian vehicles.[9][10] |
‡ denotes spacewalks performed from the Pirs docking compartment in Russian Orlan suits.
On 3 July 2009 expedition members undocked the Soyuz TMA-14 craft from the aft port of the Zvezda service module and piloted it over to the Pirs docking compartment. This was done to clear the way for the arrival of a Progress supply craft.[11]
- The Expedition 20 crew lands in Arkalyk, Kazakhstan
See also
- List of ISS spacewalks
- Extra-vehicular activity
- List of spacewalks since 2000
- List of cumulative spacewalk records
References
- ^ a b NASA HQ (24 May 2009). "Expedition 20 Crew Launches from Baikonur". NASA. Retrieved 4 June 2009.
- ^ NASA HQ (29 May 2009). "Expedition 20 Crew Docks with Space Station". NASA. Retrieved 4 June 2009.
- ^ Cite error: The named reference
ISSEx
was invoked but never defined (see the help page). - ^ Cite error: The named reference
current
was invoked but never defined (see the help page). - ^ "Astronaut wore pants for a month". BBC News. 31 July 2009. Retrieved 2 May 2010.
- ^ NASA HQ (2008). "NASA Assigns Space Station Crews, Updates Expedition Numbering". NASA. Retrieved 21 November 2008.
- ^ William Harwood for CBS News (5 June 2009). "Successful spacewalk ends". Spaceflightnow.com. Retrieved 5 June 2009.
- ^ NASA (March, 2009). "Expedition 20 Press Kit" (.pdf). NASA. Retrieved 4 June 2009.
{{cite web}}
: Check date values in:|date=
(help) - ^ David Korth, Expedition 20 Spacewalk Flight Director (4 June 2009). "Expedition 20 Spacewalk Briefing Materials". NASA. Retrieved 10 June 2009.
{{cite web}}
: CS1 maint: numeric names: authors list (link) - ^ "Russian "Internal" Spacewalk Complete". NASA. 10 June 2009. Retrieved 6 July 2009.
- ^ "Station Crew Completes Soyuz Move". spacefellowship.com. 3 July 2009. Retrieved 6 July 2009.
External links