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Soyuz MS-23
NamesISS 69S
Mission typeCrewed mission to ISS
OperatorRoscosmos
COSPAR ID2023-024A Edit this at Wikidata
SATCAT no.55688Edit this on Wikidata
Websitehttp://en.roscosmos.ru/
Mission duration188 days (planned)
Spacecraft properties
Spacecraft typeSoyuz MS
ManufacturerRSC Energia
Start of mission
Launch date
  • 1st Scenario: 19 February 2023 (planned)
  • 2nd Scenario: March 2023 (planned)
RocketSoyuz-2.1a
Launch siteBaikonur Cosmodrome, Site 31
ContractorProgress Rocket Space Centre
End of mission
Landing dateSeptember 2023 (planned)
Landing siteKazakh Steppe, Kazakhstan
Orbital parameters
Reference systemGeocentric orbit
RegimeLow Earth orbit
Inclination51.66°
Docking with ISS
Docking portPrichal nadir

(L-R) O' Hara, Kononenko and Chub 

Soyuz MS-23 is a Russian Soyuz spaceflight to the International Space Station with a crew of three planned for launch from Baikonur in March 2023.[1]

Launch Scenarios

1st Scenario:

Soyuz MS-22 is unable to perform crew return. So it is disposed off and MS-23 is launched uncrewed to rescue MS-22 crew. The original crewed launch is delayed and assigned to MS-24 mission.

1st Scenario:

Soyuz MS-22 is able to perform crew return. So MS-23 is launched crewed as planned.

The original three-Russian member crew for this scenario was named in May 2021. American astronaut Loral O'Hara replaced Andrey Fedyaev as a part of the Soyuz-Dragon crew swap system of keeping at least one NASA astronaut and one Roscosmos cosmonaut on each of the crew rotation missions. This ensures both countries have a presence on the station, and the ability to maintain their separate systems if either Soyuz or commercial crew vehicles are grounded for an extended period.[2]

Crew
Position Launching Crew member Landing Crew member
Commander Russia Oleg Kononenko, Roscosmos
Expedition 68/69
Fifth spaceflight
Flight Engineer Russia Nikolai Chub, Roscosmos
Expedition 68/69/70
First spaceflight 		United States Loral O'Hara, NASA
Expedition 68/69
First spaceflight
Flight Engineer / Spaceflight Participant United States Loral O'Hara, NASA
Expedition 68/69
First spaceflight 		Belarus TBA
First spaceflight

Backup crew

Position Crew member
Commander Russia Aleksey Ovchinin, Roscosmos
Flight Engineer 1 Russia Oleg Platonov, Roscosmos
Flight Engineer 2 United States Tracy Caldwell-Dyson[3], NASA

Assuming the this mission lasts the usual 180 days, Kononenko will have spent a total of 916 days in space, exceeding the current record, 878 days by Gennady Padalka.

References

  1. ^ "Space exploration in 2023". russianspaceweb.com. Retrieved 1 October 2021.
  2. ^ "Rogozin says Crew Dragon safe for Russian cosmonauts". SpaceNews. 26 October 2021. Retrieved 17 December 2021.
  3. ^ Imgur. "imgur.com". Imgur. Retrieved 13 August 2022.
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