Soyuz TMA-20
Encyclopedia
Soyuz TMA-20 was a manned spaceflight
Human spaceflight
Human spaceflight is spaceflight with humans on the spacecraft. When a spacecraft is manned, it can be piloted directly, as opposed to machine or robotic space probes and remotely-controlled satellites....

 to the International Space Station
International Space Station
The International Space Station is a habitable, artificial satellite in low Earth orbit. The ISS follows the Salyut, Almaz, Cosmos, Skylab, and Mir space stations, as the 11th space station launched, not including the Genesis I and II prototypes...

 (ISS) and was part of the Soyuz programme
Soyuz programme
The Soyuz programme is a human spaceflight programme that was initiated by the Soviet Union in the early 1960s, originally part of a Moon landing project intended to put a Soviet cosmonaut on the Moon...

. It lifted off from the Baikonur Cosmodrome
Baikonur Cosmodrome
The Baikonur Cosmodrome , also called Tyuratam, is the world's first and largest operational space launch facility. It is located in the desert steppe of Kazakhstan, about east of the Aral Sea, north of the Syr Darya river, near Tyuratam railway station, at 90 meters above sea level...

 in Kazakhstan
Kazakhstan
Kazakhstan , officially the Republic of Kazakhstan, is a transcontinental country in Central Asia and Eastern Europe. Ranked as the ninth largest country in the world, it is also the world's largest landlocked country; its territory of is greater than Western Europe...

 on December 15, 2010, and docked with the ISS two days later. The three-person crew of Soyuz TMA-20 - Dmitri Kondratyev, Catherine Coleman
Catherine Coleman
Catherine Grace "Cady" Coleman is an American chemist, a former United States Air Force officer, and a current NASA astronaut...

 and Paolo Nespoli - represented the partner organizations of Roscosmos, NASA
NASA
The National Aeronautics and Space Administration is the agency of the United States government that is responsible for the nation's civilian space program and for aeronautics and aerospace research...

 and the European Space Agency
European Space Agency
The European Space Agency , established in 1975, is an intergovernmental organisation dedicated to the exploration of space, currently with 18 member states...

 (ESA) in the ISS program. Soyuz TMA-20's crew represented half of the members of Expedition 27
Expedition 27
Expedition 27 was the 27th long-duration expedition to the International Space Station , starting on 16 March 2011. Expedition 27 saw numerous notable events, including the undocking of the Progress M-09M and Kounotori 2 spacecraft, the arrival of the Soyuz TMA-21 and Progress M-10M spacecraft, and...

; the other three members of the expedition arrived at the station on board Soyuz TMA-21 on 6 April 2011.

The COSPAR International ID of Soyuz TMA-20 was 2010-067A. On 24 May 2011, after spending 159 days in space, the descent module of the Soyuz TMA-20 spacecraft - carrying Kondratyev, Coleman and Nespoli - landed safely in Zhezkazgan, Kazakhstan.

Crew

The Soyuz TMA-20 crew was confirmed by NASA on November 21, 2008.

Backup crew

Tallest-ever crew member

European astronaut Paolo Nespoli was believed to have been the tallest crew member to date ever to fly aboard a Soyuz spacecraft, with a height of 188 centimeters (6 ft 2in). According to the president of RKK Energia, Vitaly Lopota, a custom-built seat and related hardware had to be manufactured to accommodate Nespoli's height.

Transportation damage

The Soyuz spacecraft suffered damage to its container during transport to the Baikonur Cosmodrome on October 5, 2010, according to the Interfax news agency. Engineers spotted the damage after the spacecraft was shipped by rail from Russia
Russia
Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...

 to Kazakhstan
Kazakhstan
Kazakhstan , officially the Republic of Kazakhstan, is a transcontinental country in Central Asia and Eastern Europe. Ranked as the ninth largest country in the world, it is also the world's largest landlocked country; its territory of is greater than Western Europe...

. After initial inspections of the damage, Russian sources said that it was not immediately clear whether the spacecraft would have to be returned to the RKK Energia factory in Moscow
Moscow
Moscow is the capital, the most populous city, and the most populous federal subject of Russia. The city is a major political, economic, cultural, scientific, religious, financial, educational, and transportation centre of Russia and the continent...

. Later, Russian officials replaced the damaged descent module with a new one, flown to Baikonur aboard a cargo plane. The replacement module was originally part of the Soyuz TMA-21 spacecraft.

Despite the transportation damage, RKK Energia president Vitaly Lopota told news media that the mission would take place in December as planned. Roscosmos spokesman Alexander Vorobyov also told Interfax that the December launch date would not be affected, because a reserve spacecraft would be available at Baikonur for the mission, if required.

Launch

On 12 December 2010, the Soyuz TMA-20 payload section was integrated with the Soyuz FG rocket and the emergency escape system, allowing the state commission to declare that the Soyuz TMA-20 mission was fully assembled. Rollout to the launch pad began in the morning of December 13, 2010.

Soyuz TMA-20 blasted off from Baikonur Cosmodrome's Site 1 at 19:09 GMT (22:09:25 Moscow Time) on 15 December 2010, and successfully reached orbit ten minutes later.

Docking

The Soyuz TMA-20 spacecraft docked with the Rassvet
Rassvet (ISS module)
Rassvet , also known as the Mini-Research Module 1 and formerly known as the Docking Cargo Module , is a component of the International Space Station . The module's design is similar to the Mir Docking Module launched on STS-74 in 1995. Rassvet is primarily used for cargo storage and as a docking...

 module's docking port at 20:12 GMT on December 17, 2010. The docking occurred as the space station flew over western Africa at an altitude of 224 miles.

In preparation for the day's docking procedure, the automated rendezvous sequence aboard Soyuz TMA-20 began at about 17:49 GMT. The spacecraft's engines were fired at 18:09 GMT, and another impulse firing occurred around 18:28 GMT. Within minutes, the Kurs
Kurs
Kurs or KURS could refer to:* Curonians, one of the extinct Baltic tribes that later formed the Latvian nation* KURS, a radio station broadcasting at 1040 AM in San Diego, California...

 rendezvous equipment on both the Soyuz and the ISS was activated to support the linkup. The television camera on the nose of the Soyuz spacecraft was turned on at 19:29 GMT to provide views of the docking.

After checking that there were no leaks between the two spacecraft, the hatch between Soyuz TMA-20 and the space station was opened at 23:02 GMT. A welcome ceremony to mark the arrival of the new crew was held shortly after the new crew came on board, when the live television downlink communications session started.


Undocking and landing

After spending 157 days docked to the ISS, the Soyuz TMA-20 spacecraft, with Russian cosmonaut Dmitri Kondratyev at the controls, undocked from the Rassvet
Rassvet (ISS module)
Rassvet , also known as the Mini-Research Module 1 and formerly known as the Docking Cargo Module , is a component of the International Space Station . The module's design is similar to the Mir Docking Module launched on STS-74 in 1995. Rassvet is primarily used for cargo storage and as a docking...

module at 21:35 UTC on 23 May 2011. The ISS was flying above eastern China
China
Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...

 at the time separated. Kondratyev occupied the center seat, with NASA astronaut Catherine Coleman to his right, and ESA astronaut Paolo Nespoli to his left.

Kondratyev backed the spacecraft away from the ISS by about 600 feet and paused to give Nespoli a photo opportunity. Starting about 15 minutes after undocking, holding station at that vantage point directly behind the ISS, Nespoli took numerous photographs and several minutes of high-definition video of the station and the then-docked Space Shuttle
Space Shuttle
The Space Shuttle was a manned orbital rocket and spacecraft system operated by NASA on 135 missions from 1981 to 2011. The system combined rocket launch, orbital spacecraft, and re-entry spaceplane with modular add-ons...

 Endeavour
Space Shuttle Endeavour
Space Shuttle Endeavour is one of the retired orbiters of the Space Shuttle program of NASA, the space agency of the United States. Endeavour was the fifth and final spaceworthy NASA space shuttle to be built, constructed as a replacement for Challenger...

, which was conducting its final mission, STS-134
STS-134
STS-134 was the penultimate mission of NASA's Space Shuttle program. The mission marked the 25th and final flight of . This flight delivered the Alpha Magnetic Spectrometer and an ExPRESS Logistics Carrier to the International Space Station. Mark Kelly served as the mission commander...

. The hatch between Soyuz TMA-20's descent and habitation modules, which was closed during undocking, was re-opened for the photo shoot, and Nespoli photographed the station-shuttle complex through a porthole in the habitation module. At 21:55 UTC, the ISS began to slowly rotate by 129 degrees to provide Nespoli with the best lighting conditions and a side-on view of Endeavour. Nespoli spent about 25 minutes completing the photo survey, then removed the digital photo memory card
Memory card
A memory card or flash card is an electronic flash memory data storage device used for storing digital information. They are commonly used in many electronic devices, including digital cameras, mobile phones, laptop computers, MP3 players, and video game consoles...

s from his cameras and made his way back into the Soyuz descent module. Once Nespoli was strapped into the seat to the left of Kondratyev's, the descent-habitation module hatch was sealed, and the Soyuz spacecraft performed a separation burn at 22:15 UTC to increase its distance from the ISS.

Flying over the southern Atlantic Ocean
Atlantic Ocean
The Atlantic Ocean is the second-largest of the world's oceanic divisions. With a total area of about , it covers approximately 20% of the Earth's surface and about 26% of its water surface area...

, the Soyuz executed its deorbit burn at 01:36 UTC on May 24. The deorbit burn was a four-minute, 16-second firing. The descent, habitation and propulsion modules making up the spacecraft separated at 02:01 UTC. The descent module, with the crew inside, reached the first traces of the Earth's atmosphere at an altitude of about 62 miles at 02:03 UTC.

The re-entry was conducted without any significant problems. In stark contrast to the frigid cold temperatures prevailed on the previous Soyuz TMA-01M
Soyuz TMA-01M
- Backup crew :- Spacecraft :Soyuz TMA-01M is the first spacecraft of the new modernized Soyuz TMA-M series, developed and built by RKK Energia as an upgrade of the baseline Soyuz-TMA, which has been in use since 2002. 36 obsolete pieces of equipment have been replaced with 19 new-generation...

 landing day, the weather this time was sunny and warm. Soyuz TMA-20's large parachute and smaller drogue
Drogue
A drogue is a device external to the boat, attached to the stern used to slow a boat down in a storm and to keep the hull perpendicular to the waves. The boat will not speed excessively down the slope of a wave and crash into the next one nor will it broach. By slowing the vessel in heavy...

 chute inflated as planned, and the spacecraft descended towards its landing zone near Dzhezkazgan
Dzhezkazgan
Jezkazgan or Zhezkazgan , formerly known as Dzhezkazgan , is a city in Karagandy Province, Kazakhstan, on a reservoir of the Kara-Kengir River. The city population is of 90,000...

 in Kazakhstan
Kazakhstan
Kazakhstan , officially the Republic of Kazakhstan, is a transcontinental country in Central Asia and Eastern Europe. Ranked as the ninth largest country in the world, it is also the world's largest landlocked country; its territory of is greater than Western Europe...

. The safe landing of the descent module was supervised by Russian Search and Recovery forces on board three Antonov 12 and Antonov 26 planes, 14 Mi-8
Mil Mi-8
The Mil Mi-8 is a medium twin-turbine transport helicopter that can also act as a gunship. The Mi-8 is the world's most-produced helicopter, and is used by over 50 countries. Russia is the largest operator of the Mi-8/Mi-17 helicopter....

 helicopters and seven search and recovery vehicles, deployed in the landing zone. The final moments of the touchdown were recorded by NASA TV
NASA TV
NASA TV is the television service of the United States government agency NASA. NASA TV is broadcast by satellite with a simulcast over the Internet. Local cable television systems across the U.S. and amateur television repeaters may carry NASA TV at their discretion, as NASA-created content is...

, with live landing footage and commentary.

The Soyuz TMA-20 spacecraft landed safely upright at 02:27 UTC on 24 May 2011, after a mission lasting 159 days, seven hours and 17 minutes. Russian recovery forces moved to assist the Soyuz crew, along with U.S. and Russian flight surgeons. Kondratyev and Coleman appeared to be in good shape, smiling and chatting with support personnel and sharing a satellite phone
Satellite phone
A satellite telephone, satellite phone, or satphone is a type of mobile phone that connects to orbiting satellites instead of terrestrial cell sites...

 to call family members back home. However, at a press conference held after the landing, Vyacheslav Rogozhkin, the deputy head of Federal Medical and Biological Agency, said that Naspoli was suffering from a minor health issue with his vestibular system
Vestibular system
The vestibular system, which contributes to balance in most mammals and to the sense of spatial orientation, is the sensory system that provides the leading contribution about movement and sense of balance. Together with the cochlea, a part of the auditory system, it constitutes the labyrinth of...

.

The crew was flown from the landing site to Karaganda
Karaganda
Karagandy , more commonly known by its Russian name Karaganda, , is the capital of Karagandy Province in Kazakhstan. It is the fourth most populous city in Kazakhstan, behind Almaty , Astana and Shymkent, with a population of 471,800 . In the 1940s up to 70% of the city's inhabitants were ethnic...

 to undergo medical checks. In Karaganda, Coleman and Nespoli boarded a waiting NASA Gulfstream jet for a flight back to NASA’s Johnson Space Center in Houston. Kontratyev was flown on a GCTC Tu-134 back to Chkalovsky
Chkalovsky
Chkalovsky , Chkalovskaya , or Chkalovskoye may refer to:*Chkalovsky District, name of several districts and city districts in Russia*Chkalovsky Airport, an airport near Moscow serving the Russian space program...

 airfield of the Gagarin Cosmonaut Training Center at Zvezdny Gorodok.
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