Expedition 24
Encyclopedia
Expedition 24 was the twenty-fourth long-duration mission to the International Space Station
(ISS). Expedition 24 initially had 2 planned spacewalks, one Russian and one American Extra-vehicular Activity (EVA). The U.S. EVA was re-planned and a second U.S. EVA was added.
Source: NASA
. After the steps had been completed Capcomm James Kelly
told the crew they could go back to bed as all the work required by the crew on the ISS was complete. A short time later, another alarm sounded and awoke the crew, when the ground attempted to restart the pump module.
spacecraft. Soyuz TMA-18 was originally planned to undock and land on 24 September 2010, but instead undocked less than 24 hours later on 25 September 2010. The failure is believed to be due to a faulty indication from a micro-switch on the hatch between the Soyuz and MRM2. A drive gear, which is related to the docking mechanism was also found to have two broken teeth, and is believed to be related to the problem as well.
s (EMUs) were originally planned for Expedition 24. However, additional spacewalking tasks were added to remove and replace a failed ammonia pump module.
‡ denotes spacewalks performed from the Pirs docking compartment in Russian Orlan suits.
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). Expedition 24 initially had 2 planned spacewalks, one Russian and one American Extra-vehicular Activity (EVA). The U.S. EVA was re-planned and a second U.S. EVA was added.
Crew
| Position | First part (June 2010) |
Second part (June 2010 to September 2010) |
|---|---|---|
| Commander | Aleksandr Skvortsov Aleksandr Skvortsov (cosmonaut) Aleksandr Aleksandrovich Skvortsov is a Russian cosmonaut. He has had one spaceflight, which was a long-duration stay aboard the International Space Station. His spaceflight took place from April to September 2010, and was launched with the spacecraft Soyuz TMA-18. He arrived at the station part... , RSA Russian Federal Space Agency The Russian Federal Space Agency , commonly called Roscosmos and abbreviated as FKA and RKA , is the government agency responsible for the Russian space science program and general aerospace research. It was previously the Russian Aviation and Space Agency .Headquarters of Roscosmos are located... First spaceflight |
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| Flight Engineer 1 | Mikhail Korniyenko Mikhail Korniyenko Mikhail Borisovich Korniyenko is a Russian cosmonaut.-Personal:... , RSA First spaceflight |
|
| Flight Engineer 2 | Tracy Caldwell Dyson Tracy Caldwell Dyson Tracy Caldwell Dyson, PhD is an American chemist and NASA astronaut. Caldwell Dyson was a Mission Specialist on Space Shuttle Endeavour flight STS-118 in August 2007. She was part of the Expedition 24 crew on the International Space Station between April 4, 2010 and September 25, 2010... , 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... Second spaceflight |
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| Flight Engineer 3 | Fyodor Yurchikhin Fyodor Yurchikhin Fyodor Nikolayevich Yurchikhin , is a Russian cosmonaut and RSC Energia test-pilot who has flown on three spaceflights. His first spaceflight was a 10-day Space Shuttle mission STS-112. His second was a long-duration stay aboard the International Space Station as a Flight Engineer for Expedition... , RSA Third spaceflight |
|
| Flight Engineer 4 | Shannon Walker Shannon Walker Shannon Walker is an American scientist and a NASA astronaut, whose first space mission was Expedition 24 on the International Space Station with take-off on 15 June 2010. She is married to a fellow NASA astronaut, the Australian-born Andy Thomas... , NASA First spaceflight |
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| Flight Engineer 5 | Douglas H. Wheelock Douglas H. Wheelock Douglas Harry "Wheels" Wheelock is an American astronaut. He has flown in space twice logging 178 days on the Space Shuttle, International Space Station, and Russian Soyuz... , NASA Second spaceflight |
|
Source: NASA
Backup crew
- Mikhail TyurinMikhail TyurinMikhail Vladislavovich Tyurin is a Russian cosmonaut.-Personal data:Michael Tyurin lives in Korolev, a small city outside of Moscow. He was born March 2, 1960, in Kolomna, USSR where his parents still reside. He is married to Tatiana Anatoleyvna Tyurina. They have a daughter, Alexandra, born in...
- Aleksandr SamokutyayevAleksandr SamokutyayevAleksandr Mikhailovich Samokutyayev is a Russian cosmonaut. Samokutyayev served as a Flight Engineer for the International Space Station long duration Expedition 27/28 missions. He also served as the Soyuz TMA-21 commander...
- Scott J. Kelly
- Andrei BorisenkoAndrei BorisenkoAndrei Ivanovich Borisenko is a Russian cosmonaut. He was selected to be a cosmonaut in May 2003, and since 2008 he has been training as a back-up crew member for a long-duration mission to the International Space Station...
- Paolo Nespoli
- Catherine ColemanCatherine ColemanCatherine Grace "Cady" Coleman is an American chemist, a former United States Air Force officer, and a current NASA astronaut...
Ammonia pump module
On 31 July 2010, the Expedition 24 crew was awoken by an alarm on the station. The alarm was caused by a cooling pump that had failed and caused a Remote Power Controller to trip and cut power to some of the International Space Station (ISS). Astronauts Tracy Caldwell Dyson and Doug Wheelock performed some steps to assist ground controllers in re-powering some of the station components such as two main power buses and one Control Moment GyroscopeControl moment gyroscope
A control momentum gyroscope is an attitude control device generally used in spacecraft attitude control systems. A CMG consists of a spinning rotor and one or more motorized gimbals that tilt the rotor’s angular momentum. As the rotor tilts, the changing angular momentum causes a gyroscopic...
. After the steps had been completed Capcomm James Kelly
James M. Kelly
James McNeal "Vegas" Kelly is a NASA Astronaut and a retired Colonel of the United States Air Force.-Education:Born in Burlington, Iowa, James Kelly graduated from Burlington Community High School in 1982. He received a B.S. degree in astronautical engineering from the United States Air Force...
told the crew they could go back to bed as all the work required by the crew on the ISS was complete. A short time later, another alarm sounded and awoke the crew, when the ground attempted to restart the pump module.
Docking ring
A failure in the docking ring on the Mini-Research Module 2 (MRM2) Poisk, caused a delay in the planned landing of the Soyuz TMA-18Soyuz TMA-18
Soyuz TMA-18 was a 2010 Soyuz flight to the International Space Station. TMA-18 was the 105th manned flight of a Soyuz spacecraft since the first manned flight in 1967.- Crew :- Backup crew :- Launch :...
spacecraft. Soyuz TMA-18 was originally planned to undock and land on 24 September 2010, but instead undocked less than 24 hours later on 25 September 2010. The failure is believed to be due to a faulty indication from a micro-switch on the hatch between the Soyuz and MRM2. A drive gear, which is related to the docking mechanism was also found to have two broken teeth, and is believed to be related to the problem as well.
Spacewalks
Three spacewalks, one in Orlan space suits and two in U.S. Extravehicular Mobility UnitExtravehicular Mobility Unit
The Space Shuttle/International Space Station Extravehicular Mobility Unit is an independent anthropomorphic system that provides environmental protection, mobility, life support, and communications for a Space Shuttle or International Space Station crew member to perform extra-vehicular activity...
s (EMUs) were originally planned for Expedition 24. However, additional spacewalking tasks were added to remove and replace a failed ammonia pump module.
| Mission | Spacewalkers | Start (UTC Coordinated Universal Time Coordinated Universal Time is the primary time standard by which the world regulates clocks and time. It is one of several closely related successors to Greenwich Mean Time. Computer servers, online services and other entities that rely on having a universally accepted time use UTC for that purpose... ) |
End (UTC) | Duration |
|---|---|---|---|---|
| Expedition 24 EVA 1 ‡ |
Mikhail Korniyenko Mikhail Korniyenko Mikhail Borisovich Korniyenko is a Russian cosmonaut.-Personal:... Fyodor Yurchikhin Fyodor Yurchikhin Fyodor Nikolayevich Yurchikhin , is a Russian cosmonaut and RSC Energia test-pilot who has flown on three spaceflights. His first spaceflight was a 10-day Space Shuttle mission STS-112. His second was a long-duration stay aboard the International Space Station as a Flight Engineer for Expedition... |
27 July 2010 04:11 |
27 July 2010 10:53 |
6 hours 42 minutes |
| Korniyrnko and Yurchikhin ran three data cables between Rassvet and the Zvezda Zvezda Zvezda is a common word among the Slavic languages meaning "star" , and may refer to one of the following:* Zvezda , 2002 Russian film* Zvezda , a component of the International Space Station... module, routing them along the Zarya module. The pair then installed cables between Rassvet and Zarya. They next moved onto relocate a camera already on Rassvet’s exterior, from the zenith or space-facing side to the nadir or Earth-facing side. As their final task, Yurchikhin and Kornienko replaced a camera used for docking European Automated Transfer Vehicles to the station. |
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| Expedition 24 EVA 2 |
Douglas Wheelock Tracy Caldwell Dyson Tracy Caldwell Dyson Tracy Caldwell Dyson, PhD is an American chemist and NASA astronaut. Caldwell Dyson was a Mission Specialist on Space Shuttle Endeavour flight STS-118 in August 2007. She was part of the Expedition 24 crew on the International Space Station between April 4, 2010 and September 25, 2010... |
7 August 2010 11:19 |
7 August 2010 19:22 |
8 hours 3 minutes |
| Wheelock and Caldwell Dyson disconnected electrical and fluid connectors. The spacewalkers did not complete all of the planned tasks due to a quick disconnect that got stuck and would not release. The pair had to complete a "bake-out" in order to ensure there was no ammonia on their suits before re-entering the Space Station. | ||||
| Expedition 24 EVA 3 |
Douglas Wheelock Tracy Caldwell Dyson |
11 August 2010 12:27 |
11 August 2010 19:53 |
7 hours 26 minutes |
| Wheelock successfully closed the quick disconnect valve for the fourth and final fluid connector for the failed pump, and detached the final fluid line from the failed pump. Caldwell Dyson demated five electrical and data cables while Wheelock broke torque and removed four bolts from the old pump. The pump was extracted from the truss through the use of a grapple bar and installed on a payload bracket on the Mobile Base System on the station's truss. Caldwell Dyson then prepared the spare pump for future installation, disconnecting three of five electrical cables and reconfiguring insulation. | ||||
| Expedition 24 EVA 4 |
Douglas Wheelock Tracy Caldwell Dyson |
16 August 2010 10:20 |
16 August 2010 17:40 |
7 hours 20 minutes |
| Wheelock removed the spare pump module from an external stowage platform. The pump module was successfully installed on the S1 Truss after Wheelock attached four bolts and Caldwell Dyson mated five electrical connectors. | ||||
‡ denotes spacewalks performed from the Pirs docking compartment in Russian Orlan suits.