Soyuz MS-09

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Soyuz MS-09
The Soyuz MS-09 spacecraft is pictured docked to the Rassvet module.jpg
OperatorRoskosmos
Mission duration196d 17h 50m
Spacecraft properties
Spacecraft typeSoyuz-MS 11F747
ManufacturerRKK Energia
Crew
Crew size3
MembersSergey V. Prokopyev
Alexander Gerst
Serena M. Auñón-Chancellor
CallsignAltai
Start of mission
Launch date6 June 2018 11:12:41 UTC[1]
RocketSoyuz-FG
Launch siteBaikonur Pad 1/5
End of mission
Landing date20 December 2018 05:02 UTC[2]
Landing siteKazakh Steppe[2]
Orbital parameters
Reference systemGeocentric
RegimeLow Earth
Docking with ISS
Docking portRassvet nadir
Docking date8 June 2018 13:01 UTC
Undocking date20 December 2018 01:42 UTC[2]
Time docked194d 12h 41m
Soyuz-MS-09-Mission-Patch.png Soyuz MS-09 crew during Routine Ops training at JSC.jpg
(l-r) Prokopyev, Gerst and Auñón-Chancellor
Soyuz programme
(Manned missions)
 

Soyuz MS-09 was a Soyuz spaceflight which launched on 6 June 2018.[1] It transported three members of the Expedition 56/57 crew to the International Space Station (ISS). MS-09 is the 138th flight of a Soyuz spacecraft. The crew consists of a Russian commander, and an American and a German flight engineer. The mission ended at 05:02 UTC on 20 December 2018.

Oleg Kononenko on EVA to examine the external hull, standing on a Strela crane

During the night of 29 August 2018,[3] a small air leak in the ISS was noticed by ground control. A 2 mm hole in the orbital module was discovered,[4] later stated to have been "hidden with a low-quality patch job."[5] Russian crew members used Kapton tape to temporarily seal the leak while a permanent fix was devised. The leak was successfully sealed with the use of a repair kit based on an epoxy sealant, and no further changes in air pressure were noted as of 31 August.[4][6] On 4 September 2018, it was announced that the hole was created by a drill, but it was unclear if it was accidental or deliberate.[7] Russian officials indicated the hole was made during the module's manufacturing process.[5]

On 11 December 2018, Kononenko and Prokopyev conducted an EVA, cutting into the thermal blankets and pulling away insulation, in order to examine the external hull, take images of the area and retrieve samples of residue to be used in the investigation. As the hole is in the orbital module that is jettisoned before re-entry, the return flight was not endangered.[8] The return of the MS-09 crew was briefly delayed by the launch failure of Soyuz MS-10 (until the arrival of the next crew on MS-11). MS-09 landed on 20 December at about 05:03 UTC.[2] Prokopyev was quoted as saying that the drill hole was made from the inside; however, it is still unclear when it was made.[9]

Crew[edit]

Position Crew member
Commander Russia Sergey Prokopyev, RSA
Expedition 56
First spaceflight
Flight Engineer 1 Germany Alexander Gerst, ESA
Expedition 56
Second spaceflight
Flight Engineer 2 United States Serena M. Auñón-Chancellor, NASA
Expedition 56
First spaceflight

Backup crew[edit]

Position[10] Crew member
Commander Russia Oleg Kononenko, RSA
Flight Engineer 1 Canada David Saint-Jacques, CSA
Flight Engineer 2 United States Anne C. McClain, NASA

References[edit]

  1. ^ a b Evans, Ben (June 6, 2018). "Soyuz MS-09 Launches U.S., Russian, German Spacefarers to Space Station". AmericaSpace. Retrieved December 4, 2018.
  2. ^ a b c d Gebhardt, Chris (19 December 2018). "Soyuz MS-09 lands after unprecedented on-orbit repairs, inspections". Retrieved 20 December 2018.
  3. ^ Gebhardt, Chris (30 August 2018). "Soyuz/Station atmosphere leak no threat to Crew as repairs continue".
  4. ^ a b Clark, Stephen (30 August 2018). "Cosmonauts plug small air leak on the International Space Station". Spaceflight Now. Retrieved 2 September 2018.
  5. ^ a b Wehner, Mike (December 26, 2018). "What does it mean if the hole in the ISS was drilled from the inside?". Boy Genius Report. Retrieved December 27, 2018.
  6. ^ Roscosmos (2018). "Роскосмос. Информационное сообщение".
  7. ^ Harwood, William (4 September 2018). "Russians investigate cause of Soyuz leak, focus on human error". Spaceflight Now. Retrieved 5 September 2018.
  8. ^ Bergin, Chris. "Russian EVA examines hole repair area on Soyuz MS-09 – NASASpaceFlight.com". NASASpaceflight.com. Retrieved 17 December 2018.
  9. ^ Mandelbaum, Ryan F. (December 25, 2018). "Report: ISS Hole Drilled From the Inside, Cosmonaut Says". Gizmodo. Retrieved December 25, 2018.
  10. ^ astronaut.ru (2013). "Орбитальные полёты".