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Expedition 20
Long-duration mission to the International Space Station
Long-duration mission to the International Space Station
| Field | Value |
|---|---|
| name | Expedition 20 |
| image | Expedition 20 crew poster.jpg |
| image_caption | Promotional Poster |
| insignia | ISS Expedition 20 Patch.svg |
| insignia_caption | Expedition 20 mission patch |
| mission_type | Long-duration expedition |
| mission_duration | 5 Months |
| crew_size | 8 |
| crew_members | Gennady Padalka* |
| Michael Barratt* | |
| Koichi Wakata* (May–July) | |
| Timothy Kopra (July–August) | |
| Nicole Stott† (August–October) | |
| Frank De Winne† | |
| Roman Romanenko† | |
| Robert Thirsk† | |
| * – transferred from Expedition 19 | |
| † – transferred to Expedition 21 | |
| crew_EVAs | 2 |
| crew_EVA_duration | 5 hours, 6 minutes |
| crew_photo | The ISS Expedition 20.jpg |
| crew_photo_caption | Front Row: Frank De Winne, Gennady Padalka, Roman Romanenko |
| Back Row: Robert Thirsk, Michael Barratt, Nicole Stott, Timothy Kopra, Koichi Wakata | |
| space_station | International Space Station |
| start_date | UTC |
| end_date | |
| arrival_craft | Exp 19/20: Soyuz TMA-14 |
| Exp 20/21: Soyuz TMA-15 | |
| Wakata: STS-119 | |
| Kopra: STS-127 | |
| Stott: STS-128 | |
| departure_craft | Exp 19/20: Soyuz TMA-14 |
| Exp 20/21: Soyuz TMA-15 | |
| Wakata: STS-127 | |
| Kopra: STS-128 | |
| Stott: STS-129 | |
| previous_mission | Expedition 19 |
| next_mission | Expedition 21 |
| programme | ISS expeditions |
Michael Barratt* Koichi Wakata* (May–July) Timothy Kopra (July–August) Nicole Stott† (August–October) Frank De Winne† Roman Romanenko† Robert Thirsk†
- – transferred from Expedition 19 † – transferred to Expedition 21 Back Row: Robert Thirsk, Michael Barratt, Nicole Stott, Timothy Kopra, Koichi Wakata
Exp 20/21: Soyuz TMA-15 Wakata: STS-119
Kopra: STS-127
Stott: STS-128
Exp 20/21: Soyuz TMA-15 Wakata: STS-127
Kopra: STS-128
Stott: STS-129
Expedition 20 was the 20th 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 could hold only three people, two separate launches were necessary: Soyuz TMA-14 launched on 26 March 2009, and Soyuz TMA-15 followed on 27 May 2009.
Soyuz TMA-15 launched from Baikonur Cosmodrome at 10:34 UTC on 27 May 2009. The vehicle docked with the station on 29 May 2009, officially changing the Soyuz TMA-14 crew from Expedition 19 to Expedition 20.
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.
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.
Crew
| url=http://www.nasa.gov/home/hqnews/2008/nov/HQ_08-306_Expedition_crews.html | title=NASA Assigns Space Station Crews, Updates Expedition Numbering | access-date=21 November 2008 | publisher=NASA | year=2008 | author=NASA HQ | archive-date=17 April 2012 | archive-url=https://web.archive.org/web/20120417221108/http://www.nasa.gov/home/hqnews/2008/nov/HQ_08-306_Expedition_crews.html | url-status=dead}} | First Part |
|---|---|---|---|---|---|---|---|---|---|
| (May to July 2009) | Second Part | ||||||||
| (July to August 2009) | Third Part | ||||||||
| (August to October 2009) | Commander | Flight Engineer 1 | Flight Engineer 2 | Flight Engineer 3 | Flight Engineer 4 | Flight Engineer 5 | |||
| RUS Gennady Padalka, RSA | |||||||||
| Third spaceflight | |||||||||
| USA Michael Barratt, NASA | |||||||||
| First spaceflight | |||||||||
| BEL Frank De Winne, ESA | |||||||||
| Second and last spaceflight | |||||||||
| RUS Roman Romanenko, RSA | |||||||||
| First spaceflight | |||||||||
| CAN Robert Thirsk, CSA | |||||||||
| Second and last spaceflight | |||||||||
| JPN Koichi Wakata, JAXA | |||||||||
| Third spaceflight | USA Timothy Kopra, NASA | ||||||||
| First spaceflight | USA Nicole Stott, NASA | ||||||||
| First spaceflight |
Backup crew
- RUS Maksim Surayev, Commander
- USA Jeff Williams
- USA Timothy Creamer
- USA Catherine Coleman
- NED André Kuipers
- RUS Dimitri Kondratyev
- CAN Chris Hadfield
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. | ||||
| 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. |
‡ 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.
File:Expedition 20 Lands.jpg File:Expedition 20 Comes Home.jpg
References
References
- NASA HQ. (24 May 2009). "Expedition 20 Crew Launches from Baikonur". NASA.
- NASA HQ. (29 May 2009). "Expedition 20 Crew Docks with Space Station". NASA.
- (31 July 2009). "Astronaut wore pants for a month". BBC News.
- (10 April 2009). "International Space Station Expeditions". NASA.
- NASA. (2008). "International Space Station". NASA.
- NASA HQ. (2008). "NASA Assigns Space Station Crews, Updates Expedition Numbering". NASA.
- William Harwood for CBS News. (5 June 2009). "Successful spacewalk ends". Spaceflightnow.com.
- NASA. (March 2009). "Expedition 20 Press Kit". NASA.
- David Korth, Expedition 20 Spacewalk Flight Director. (4 June 2009). "Expedition 20 Spacewalk Briefing Materials". NASA.
- (10 June 2009). "Russian "Internal" Spacewalk Complete". NASA.
- (3 July 2009). "Station Crew Completes Soyuz Move". spacefellowship.com.
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