Expedition 64

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Mission type| Long-duration expedition
Operator| NASA / Roscosmos
Mission duration| 177 days, 2 hours and 1 minute
Expedition
Space Station| International Space Station
Began| 21 October 2020, 23:32:09 UTC[1]
Ended| 17 April 2021, 01:34:04 UTC[1]
Arrived aboard| Soyuz MS-17
SpaceX Crew-1
Soyuz MS-18
Departed aboard| Soyuz MS-17
Crew
Crew size| 3-10
Members|

* Expedition 63/64:
Sergey Ryzhikov
* Sergey Kud-Sverchkov
* Kathleen Rubins
* Expedition 64/65:
Michael Hopkins
* Victor Glover
* Soichi Noguchi
* Shannon Walker
* Oleg Novitsky
* Expedition 64/65/66:
Pyotr Dubrov
* Mark T. Vande Hei

EVAs| 5[1][2][3][4]
EVA duration| 26 hours, 8 minutes

Expedition 64 mission patch

Expedition 64 crew portrait

ISS expeditions

<- Expedition 63

Expedition 65 ->

Expedition 64 was the 64th long-duration expedition to the International Space Station. The mission began on 21 October 2020 with the undocking and departure of Soyuz MS-16 and ended on 17 April 2021 with the departure of Soyuz MS-17.[5]

## Contents

* 1 Background, crew, and events
* 2 Events manifest
* 3 Crew
* 4 Extravehicular activity
* 5 References

## Background, crew, and events

The expedition started with the three person crew who launched onboard Soyuz MS-17 featuring ISS commander Sergey Ryzhikov and Sergey Kud-Sverchkov of Roscosmos, as well as NASA astronaut Kathleen Rubins.

On 17 November 2020, the crew reached its full complement with the arrival of SpaceX Crew-1, the first operational flight of NASA's Commercial Crew Program (CCP), featuring NASA astronauts Michael S. Hopkins, Victor J. Glover, and Shannon Walker, as well as JAXA astronaut Soichi Noguchi.[6] As Crew-1 consisted of a crew of four instead of three like the Soyuz, this marked the beginning of operations for crews of seven on the ISS.

In the final week of the mission, Soyuz MS-18 and its three person crew featuring Roscosmos cosmonauts Oleg Novitsky and Pyotr Dubrov, as well as NASA astronaut Mark T. Vande Hei joined the mission.

## Events manifest

Events involving crewed spacecraft are listed in bold.

Previous mission: Expedition 63

21 October 2020 - Soyuz MS-16 undocking, official switch from Expedition 63

17 November 2020 - SpaceX Crew-1 docking

18 November 2020 - EVA 1 (VKD-45) Ryzhikov/Kud-Sverchkov: 6 hrs, 48 mins

7 December 2020 - CRS SpX-21 docking

6 January 2021 - CRS NG-14 unberthing and release

12 January 2021 - CRS SpX-21 undocking

27 January 2021 - EVA 2 (US-69) Hopkins/Glover: 6 hrs, 56 mins

1 February 2021 - EVA 3 (US-70) Hopkins/Glover: 5 hrs, 20 mins

9 February 2021 - Progress MS-15/76P undocking

17 February 2021 - Progress MS-16/77P docking

22 February 2021 - CRS NG-15 capture and berthing

28 February 2021 - EVA 4 (US-71) Rubins/Glover: 7 hrs, 4 mins

5 March 2021 - EVA 5 (US-72) Rubins/Noguchi: 6 hrs, 56 mins

13 March 2021 - EVA 6 (US-73) Glover/Hopkins: 6 hrs, 47 mins

19 March 2021 - Soyuz MS-17 redocking

5 April 2021 - SpaceX Crew-1 redocking

9 April 2021 - Soyuz MS-18 docking

15 April 2021 - ISS Expedition 64/65 change of command ceremony from Sergey Ryzhikov to Shannon Walker

17 April 2021 - Soyuz MS-17 docking, official switch to Expedition 65

Next mission: Expedition 65

## Crew

Flight  | Astronaut  | First part
(21 October - 17 November 2020) | Second part
(17 November 2020 - 9 April 2021) | Third part
(9 - 17 April 2021)

|
|
|
|

Soyuz MS-17 |  Sergey Ryzhikov, Roscosmos
Second spaceflight  | Commander
Sergey Kud-Sverchkov, Roscosmos
First spaceflight  | Flight engineer
Kathleen Rubins, NASA
Second and last spaceflight  | Flight engineer
SpaceX Crew-1 |  Michael S. Hopkins, NASA
Second and last spaceflight  | Off station  | Flight engineer
Victor J. Glover, NASA
First spaceflight  | Off station  | Flight engineer
Soichi Noguchi, JAXA
Third and last spaceflight  | Off station  | Flight engineer
Shannon Walker, NASA
Second and last spaceflight  | Off station  | Flight engineer
Soyuz MS-18 |  Oleg Novitsky, Roscosmos
Third spaceflight  | Off station  | Flight engineer
Pyotr Dubrov, Roscosmos
First spaceflight  | Off station  | Flight engineer
Mark T. Vande Hei, NASA
Second spaceflight  | Off station  | Flight engineer

[6]

## Extravehicular activity

Several spacewalks for Expedition 63 were planned to carry out work on the scientific and power systems on the ISS. Delays to the NASA Commercial Crew Program left Chris Cassidy as the only crew member on the US Orbital Segment (USOS) for an extended period of time. The arrival of the Crew Dragon Demo-2 mission permitted four EVAs by Cassidy and Robert Behnken to replace the remaining nickel-hydrogen batteries on the S6 Truss with new lithium-ion batteries.[7]

The planned work for activating the Bartolomeo scientific package located on the outside of the Columbus laboratory module, delivered on SpaceX CRS-20, was postponed until Expedition 64.[8]

Ryzhikov and Kud-Sverchkov performed a spacewalk on 18 November 2020 to conduct initial preparations for the replacement of the Pirs docking compartment by the Nauka laboratory module, which lasted 6 hours and 48 minutes. This was the first EVA to be conducted from the Poisk airlock.[9] Coverage of the spacewalk, which NASA has designated "Russian Spacewalk #47", began at 14:30 UTC and lasted more than six hours.[10]

During late January through early March of 2021, NASA executed five spacewalks. The 27 January spacewalk, begun at 12:28 UTC and lasting 6 hours and 56 minutes, was conducted by Hopkins and Glover to install a Ka band antenna on Columbus in preparation for Bartolomeo's activation, replace a pin on the Quest Joint Airlock, and remove a grapple fixture on the P4 Truss for the beginning of a series of experimental solar array wing upgrades.[11][12]

The 1 February spacewalk, begun at 12:56 UTC and lasting 5 hours and 20 minutes, was conducted by Hopkins and Glover to conclude a four-year campaign, initiated by Shane Kimbrough and Peggy Whitson on Expedition 50, to replace the batteries on the Integrated Truss Structure.[13][14] Hopkins and Glover also installed and upgraded several cameras on the starboard truss, the Destiny laboratory, and the Kibo robotic arm.[15][16][11]

The 28 February spacewalk, begun at 11:12 UTC and lasting 7 hours and 4 minutes, was conducted by Rubins and Glover to install on the P6 Truss brackets for the experimental solar array upgrades, the main materials for which launched in June 2021 aboard SpaceX CRS-22.[17]

The 5 March spacewalk, begun at 11:37 UTC and lasting 6 hours and 56 minutes, was conducted by Rubins and Noguchi to continue the bracket installation work.[1][2][3][4] They had also initially planned to deploy a new airlock cover to strengthen Quest, replace a wireless video transceiver on the Unity node, route more cables on Bartolomeo, and vent and rearrange ammonia hoses. Rubins and Noguchi abandoned the planned additional work because they encountered difficulties with several bolts during the bracket installation.[17][18][19]

The 13 March spacewalk, begun at 13:14 UTC and lasting 6 hours and 47 minutes, was conducted by Hopkins and Glover to finish the work not taken up by Rubins and Noguchi, although they deferred installing clamps on Bartolomeo to a future spacewalk.[20]

## References

1. ↑ 1.0 1.1 1.2 1.3 "ISS Expedition 64". spacefacts.de. 17 October 2021. http://www.spacefacts.de/iss/english/exp_64.htm.
2. ↑ 2.0 2.1 "Astronauts Kate Rubins and Soichi Noguchi began their spacewalk today at 6:37am ET to continue solar array modification work.". NASA. 5 March 2021. https://twitter.com/Space_Station/status/1367802857785810950.
3. ↑ 3.0 3.1 Garcia, Mark (5 March 2021). "Astronauts Begin Spacewalk for Solar Array Modifications". NASA. https://blogs.nasa.gov/spacestation/2021/03/05/astronauts-begin-spacewalk-for-solar-array-modifications/. This article incorporates text from this source, which is in the public domain.
4. ↑ 4.0 4.1 "The fourth spacewalk of the year concluded at 1:33pm ET, after an excursion lasting 6 hours and 56 minutes.". NASA. 5 March 2021. https://twitter.com/NASA/status/1367911231303122949.
5. ↑ "ISS: Expedition 64". http://www.spacefacts.de/iss/english/exp_64.htm. "ISS Expedition 64 concluded with the undocking of Russian spacecraft Soyuz MS-17 on April 17, 2021 at 01:34:04 UTC."
6. ↑ 6.0 6.1 Burghardt, Thomas (17 November 2020). "Crew Dragon Resilience successfully docks, expands ISS crew to seven". NASASpaceflight.com. https://www.nasaspaceflight.com/2020/11/resilience-expands-station-crew/.
7. ↑ Corbett, Tobias (19 May 2020). "NASA outlines the near and far future of the Space Station". https://www.nasaspaceflight.com/2020/05/near-far-future-of-station/.
8. ↑ "Spacesuit Work and Heart Research Fill Crew Day – Space Station". https://blogs.nasa.gov/spacestation/2020/04/29/spacesuit-work-and-heart-research-fill-crew-day/. This article incorporates text from this source, which is in the public domain.
9. ↑ Potter, Sean (12 November 2020). "NASA TV Coverage Set for Russian Spacewalk" (Press release). NASA. Retrieved 14 November 2020. This article incorporates text from this source, which is in the public domain.
10. ↑ "NASA TV Main Page". NASA. 18 November 2020. https://www.nasa.gov/multimedia/nasatv/index.html#media. This article incorporates text from this source, which is in the public domain.
11. ↑ 11.0 11.1 Garcia, Mark (27 January 2021). "Spacewalk wraps up with upgrades on European lab module". NASA. https://blogs.nasa.gov/spacestation/2021/01/27/spacewalk-wraps-up-with-upgrades-on-european-lab-module/. This article incorporates text from this source, which is in the public domain.
12. ↑ Strickland, Ashley (January 27, 2021). "NASA astronauts Victor Glover, Mike Hopkins conduct spacewalk Wednesday". CNN. https://www.cnn.com/2021/01/27/us/iss-january-spacewalk-glover-hopkins-scn-trnd/index.html. "The spacewalk officially began at 6:28 a.m. ET and ended at 1:24 p.m. ET. It lasted for about six hours and 56 minutes."
13. ↑ Garcia, Mark (6 January 2017). "Astronauts complete first of two power upgrade spacewalks". NASA. https://blogs.nasa.gov/spacestation/2017/01/06/astronauts-complete-first-of-two-power-upgrade-spacewalks/. This article incorporates text from this source, which is in the public domain.
14. ↑ Garcia, Mark (1 February 2021). "Spacewalkers complete multi-year effort to upgrade space station batteries". NASA. https://www.nasa.gov/feature/spacewalkers-complete-multi-year-effort-to-upgrade-space-station-batteries/. This article incorporates text from this source, which is in the public domain.
15. ↑ Garcia, Mark (1 February 2021). "Spacewalkers wrap up battery work and camera installations". NASA. https://blogs.nasa.gov/spacestation/2021/02/01/spacewalkers-wrap-up-battery-work-and-camera-installations/. This article incorporates text from this source, which is in the public domain.
16. ↑ Gohd, Chelsea (February 1, 2021). "Spacewalking astronauts complete a space station battery upgrade years in the making". Space.com. https://www.space.com/spacewalking-astronauts-upgrade-space-station-battery-upgrade-expedition-64.
17. ↑ 17.0 17.1 Moran, Norah (28 February 2021). "Spacewalkers conclude today's spacewalk". NASA. https://blogs.nasa.gov/spacestation/2021/02/28/spacewalkers-conclude-todays-spacewalk/. This article incorporates text from this source, which is in the public domain.
18. ↑ Brinkmann, Paul (5 March 2021). "Watch live: International Space Station astronauts set for space walk". United Press International. https://www.upi.com/Science_News/2021/03/05/NASA-space-walk-international-space-station-kate-rubins-soichi-noguchi/9671614872303/.
19. ↑ Dunn, Marcia (5 March 2021). "Spacewalking astronauts tackle more solar panel advance work". Associated Press. https://apnews.com/article/technology-04ae97d6a63b6f738cb393c503d1ce80.
20. ↑ Garcia, Mark (13 March 2021). "NASA Astronauts Complete Year's Fifth Spacewalk at Station". NASA. https://blogs.nasa.gov/spacestation/2021/03/13/nasa-astronauts-complete-years-fifth-spacewalk-at-station/. This article incorporates text from this source, which is in the public domain.

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Expeditions to the International Space Station

* See also: {{Crewed ISS flights}}
* {{Uncrewed ISS flights}}

2000–2004|

* Expedition 1
* 2
* 3
* 4
* 5
* 6
* 7
* 8
* 9
* 10

International Space Station Patch

2005–2009|

* Expedition 11
* 12
* 13
* 14
* 15
* 16
* 17
* 18
* 19
* 20
* 21
* 22

2010–2014|

* Expedition 23
* 24
* 25
* 26
* 27
* 28
* 29
* 30
* 31
* 32
* 33
* 34
* 35
* 36
* 37
* 38
* 39
* 40
* 41
* 42

2015–2019|

* Expedition 43
* 44
* 45
* 46
* 47
* 48
* 49
* 50
* 51
* 52
* 53
* 54
* 55
* 56
* 57
* 58
* 59
* 60
* 61

2020–|

* Expedition 62
* 63
* 64
* 65+

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