Expedition 71 is the 71st long-duration expedition to the International Space Station. The expedition began with the departure of Soyuz MS-24 on 6 April 2024[1] with cosmonaut Oleg Kononenko continuing his ISS command from Expedition 70.[2][3] It will end with his departure on Soyuz MS-25 with crewmates from MS-24 and MS-25 on 24 September 2024.[4][5]

Expedition 71
All Expedition 71 crew members except Tracy during Expedition 70 (first picture)
Tracy (left in second picture)
Mission typeLong-duration mission to ISS
OperatorNASA / Roscosmos
Mission duration22 days, 10 hours and 56 minutes (in progress)
Expedition
Space stationInternational Space Station
Began6 April 2024
Arrived aboardSoyuz MS-25
SpaceX Crew-8
Crew
Crew size7–11
Members
EVAs1
EVA duration4 hours 36 minutes

Expedition 71 mission patch

Expedition 71 crew portrait 

Background, crew and events edit

Initially, the expedition consisted of Oleg, his Russian Soyuz MS-24 crewmate Nikolai Chub (both on a year long ISS mission since 15 September 2023), and his American Soyuz MS-25 crewmate, Tracy Caldwell-Dyson, who launched on 23 March 2024, as well as SpaceX Crew-8 crewmates, American astronauts Matthew Dominick, Michael Barratt, and Jeanette Epps, and Russian cosmonaut Alexander Grebenkin, who launched on 4 March 2024 and were transferred from Expedition 70 after Soyuz MS-24 departure.[5][3][6]

Later, the crew will be replenished by subsequent missions in both expedition and visiting crews in the expedition.[4] Boeing Starliner Crewed Flight Test (consisting of NASA astronauts, Barry Wilmore and Sunita Williams) is supposed to dock during the expedition.[7][8]

Events manifest edit

Previous mission: Expedition 70

6 April 2024 – Soyuz MS-24 Undocking (includes Visiting Expedition 21), official switch from Expedition 70

25 April 2024 – EVA-1 (VKD-62) Kononenko/Chub: 4 hrs, 36 min

28 April 2024 –CRS SpX-30 Undocking

Planned Events:

2 May 2024 – SpaceX Crew-8 Redocking

May 2024 – EVA-2 (US-90)

8 May 2024 – Starliner CFT Docking[8]

14 May 2024 – Starliner CFT Undocking[8]

May 2024 – EVA-3 (US-91)

May-June 2024 – EVA-4 (VKD-63)

May-June 2024 – EVA-5 (VKD-64)

1 June 2024 – Progress MS-25/86P Undocking

5 June 2024 – Progress MS-27/88P Docking

June 2024 – COTS SNC Demo-1 Capture & Berthing

June-August 2024 – EVA-6 (US-92)

July 2024 – CRS Cygnus NG-20 Unberthing & Release

13 August 2024 – Progress MS-26/87P Undocking

17 August 2024 – Progress MS-28/89P Docking

August 2024 – SpaceX Crew-9 Docking

August 2024 – CRS Cygnus NG-21 Capture & Berthing

August 2024 – SpaceX Crew-8 Undocking

August-September 2024 – COTS SNC Demo-1 Unberthing & Release

11 September 2024 – Soyuz MS-26 Docking

24 September 2024 – Soyuz MS-25 Undocking, official switch to Expedition 72

Next: Expedition 72

Crew edit

Expedition Crew edit

Flight[4] Astronaut Increment 71a Increment 71b Increment 71c Increment 71d
6 Apr - Aug 2024
(current)
Aug - Aug 2024
(planned)
Aug - 11 Sep 2024
(planned)
11 - 24 Sep 2024
(planned)
Soyuz MS-25   Oleg Kononenko, Roscosmos
Fifth spaceflight
Commander[1]
  Nikolai Chub, Roscosmos
First spaceflight
Flight Engineer
  Tracy Caldwell-Dyson, NASA
Third spaceflight
Flight Engineer
SpaceX Crew-8   Matthew Dominick, NASA
First spaceflight
Flight Engineer Off Station
  Michael Barratt, NASA
Third spaceflight
Flight Engineer Off Station
  Jeanette Epps, NASA
First spaceflight
Flight Engineer Off Station
  Alexander Grebenkin, Roscosmos
First spaceflight
Flight Engineer Off Station
SpaceX Crew-9
(planned)
  Zena Cardman, NASA
First spaceflight
Off Station Flight Engineer
  Nick Hague, NASA
Third[a] spaceflight
Off Station Flight Engineer
 Stephanie Wilson, NASA
Fourth spaceflight
Off Station Flight Engineer
  Aleksandr Gorbunov, Roscosmos
First spaceflight
Off Station Flight Engineer
Soyuz MS-26
(planned)
  Aleksey Ovchinin, Roscosmos
Fourth[a] spaceflight
Off Station Flight Engineer
  Ivan Vagner, Roscosmos
Second spaceflight
Off Station Flight Engineer
  Donald Pettit, NASA
Fourth spaceflight
Off Station Flight Engineer

Innovative Crewed spaceflights edit

Mission Astronauts Docking (UTC) Undocking (UTC) Duration
Boeing Crewed Flight Test   Barry Wilmore, NASA
  Sunita Williams, NASA
8 May 2024[8] (hard docking) (planned) 14 May 2024[8] (planned) 6 days (planned)
Besides the expedition crew, Boeing CST-100 Starliner will visit the station for a crewed flight test, consisting of NASA astronauts Barry Wilmore and Sunita Williams.[8] Boeing spacecraft 3, later named Calypso, named after Jacques-Yves Cousteau's oceanography vessel, RV Calypso,[12] will launch to the station on 7 May 2024 and will dock to the station on 8 April 2024. The flight will mark the first crewed test flight of Boeing's CST-100 Starliner spacecraft. Crew members will stay aboard the station for approximately 6 days.[8]

Vehicle manifest edit

Vehicle[4] Purpose Port Docking/Capture Date Undocking Date
(if during Expedition 71)
Vehicles inherited from Expedition 70
  Progress MS-25/86P Russian Cargo Poisk Zenith 3 Dec 2023 2024 (scheduled)
  CRS Cygnus NG-20 "Patricia "Patty" Hilliard Robertson" US Cargo Unity Nadir 1 Feb 2024 Jul 2024 (scheduled)
  Progress MS-26/87P Russian Cargo Zvezda aft 17 Feb 2024 2024 (scheduled)
  SpaceX Crew-8 "Endeavour" Exp. 70/71 USOS Crew Harmony Forward 5 Mar 2024 2 May 2024 (scheduled)
  CRS Dragon SpX-30 US Cargo Harmony Zenith 23 Mar 2024 28 Apr 2024
  Soyuz MS-25/71S "Kazbek" Exp. 70/71 Crew, Visiting Expedition Prichal nadir 25 Mar 2024 24 Sep 2024 (scheduled)
Vehicles scheduled to dock during Expedition 71
  SpaceX Crew-8 "Endeavour" Exp. 70/71 USOS Crew Harmony Zenith 2 May 2024 (Redock) (scheduled) Aug 2024 (scheduled)
  Starliner CFT "Calypso" Non-Expedition US CCDev Mission Harmony Forward 8 May 2024 (scheduled) 14 May 2024 (scheduled)
Segment   US Orbital Segment   Russian Segment
Period Harmony Forward Harmony Zenith Harmony Nadir Unity Nadir Rassvet Nadir Prichal Nadir Poisk Zenith Zvezda Aft
6-28 Apr 2024 SpaceX Crew-8 CRS SpX-30 Vacant Cygnus NG-20 Vacant Soyuz MS-25/71S Progress MS-25/86P Progress MS-26/87P
28 Apr-2 May 2024 Vacant
2-8 May 2024 Vacant SpaceX Crew-8
8-14 May 2024 Starliner CFT
14 May 2024- Vacant

The Prichal aft, forward, starboard, and aft ports all have yet to be used since the module originally docked to the station and are not included in the table.

Notes edit

  1. ^ a b Counting the aborted flight of Soyuz MS-10, even though this did not quite cross the Kármán line. This matches NASA's count, though RSA follows the Kármán line definition.[11]

References edit

  1. ^ a b Evans, Ben (10 September 2023). "Better Late Than Never: New ISS Crew Prepares to Fly, All-Female EVAs Possible in October". AmericaSpace.com. Archived from the original on 29 September 2023. Retrieved 12 September 2023.
  2. ^ Harwood, William (2024-03-11). "4 International Space Station crew members undock, head for Tuesday splashdown in Gulf of Mexico - CBS News". www.cbsnews.com. Retrieved 2024-03-12.
  3. ^ a b c "Expedition 71 Crew Discusses Six-Month ISS Increment, Crew-9 Announcement Expected Next Week - AmericaSpace". www.americaspace.com. 2024-01-25. Retrieved 2024-03-12.
  4. ^ a b c d e "Complete ISS flight events". NasaSpaceFlight.com Forum. 15 April 2023. Retrieved 10 November 2020.
  5. ^ a b c "NASA Expedition 71 Astronauts to Conduct Research aboard Space Station - NASA". 2024-02-09. Retrieved 2024-03-12.
  6. ^ "NASA's expedition 71 astronauts prepare for crucial research on international space station". India Today NE. 2024-02-11. Retrieved 2024-03-12.
  7. ^ Sturm, Karin (20 November 2023). "Stars aligning for Boeing crew launch in April". NASASpaceFlight.com. Archived from the original on 27 December 2023. Retrieved 23 December 2023.
  8. ^ a b c d e f g "Boeing's 1st Starliner astronaut launch delayed again, to May 6". Space.com. 4 April 2024. Retrieved 4 April 2024.
  9. ^ "Launch Schedule – Spaceflight Now". Retrieved 2023-02-23.
  10. ^ "Microgravity Research Flights". Glenn Research Center. NASA. 10 November 2020. Archived from the original on 18 July 2023. Retrieved 10 November 2020.
  11. ^ Gebhardt, Chris (14 March 2019). "Soyuz MS-12 docks with the Space Station – NASASpaceFlight.com". NASASpaceflight.com.
  12. ^ Dunbar, Brian (December 22, 2019). "Starliner Returns to Earth With a New Name: Calypso". NASA.