|Mission type||Crewed mission to ISS|
|Mission duration||184 days, 23 hours, 10 minutes|
|Spacecraft||Soyuz MS No.747 Favor |
|Start of mission|
|Launch date||14 October 2020, 05:45:04 UTC|
|Rocket||Soyuz-2.1a (s/n Х15000-045)|
|Launch site||Baikonur, Site 31|
|End of mission|
|Landing date||17 April 2021, 04:55 UTC|
|Landing site||Kazakh Steppe, Kazakhstan|
|Reference system||Geocentric orbit|
|Regime||Low Earth orbit|
|Docking with ISS|
|Docking port||Rassvet nadir|
|Docking date||14 October 2020, 08:48:47 UTC |
|Undocking date||19 March 2021, 16:38:27 UTC|
|Time docked||156 days, 7 hours and 49 minutes|
|Docking with ISS|
|Docking port||Poisk zenith|
|Docking date||19 March 2021, 17:12:35 UTC |
|Undocking date||17 April 2021, 01:34 UTC |
|Time docked||28 days, 8 hours and 21 minutes|
Soyuz MS-17 mission patch
Rubins, Ryzhikov, and Kud-Sverchkov
Soyuz MS-17 was a Soyuz spaceflight that was launched on 14 October 2020. It transported three crew members of the Expedition 63/64 crew to the International Space Station. Soyuz MS-17 was the 145th crewed flight of a Soyuz spacecraft. The crew consisted of a Russian commander and a Russian and American flight engineer.
The mission marked the first use of a new "ultrafast" two-orbit rendezvous flight plan with the Soyuz, which saw Soyuz MS-17 arrive at the ISS within approximately three hours after the launch.
On 19 March 2021, the crew of Soyuz MS-17 boarded their spacecraft to relocate it from Rassvet to Poisk to make way for the arrival and docking of the Soyuz MS-18 spacecraft, which launched on 9 April 2021 carrying cosmonauts Oleg Novitsky, Pyotr Dubrov and the astronaut of NASA, Mark T. Vande Hei to the ISS ahead of a six-month stay. The two spacecraft had a nine-day handover period before Soyuz MS-17 departed. This is necessary to avoid de-crewing the Russian Orbital Segment (ROS) of the ISS since no Russian cosmonaut was present aboard SpaceX Crew-1.
|Commander|| Sergey Ryzhikov, Roscosmos|
|Flight Engineer 1|| Sergey Kud-Sverchkov, Roscosmos|
|Flight Engineer 2|| Kathleen Rubins, NASA|
|Commander||Oleg Novitsky, Roscosmos|
|Flight Engineer 1||Pyotr Dubrov, Roscosmos|
|Flight Engineer 2||Mark T. Vande Hei, NASA|
|Commander||Anton Shkaplerov, Roscosmos|
|Flight Engineer 1||Andrei Babkin, Roscosmos|
Early planning had listed Russian cosmonaut Nikolai Chub as the mission's Flight Engineer 2, pending a NASA decision on whether they would purchase more seats on the Soyuz. In May 2020, NASA purchased a Soyuz seat and assigned NASA astronaut Kathleen Rubins to the Flight Engineer 2 position, backed up by astronaut Mark T. Vande Hei.
Originally Russian cosmonauts Anatoli Ivanishin and Ivan Vagner were set to fly as Commander and Flight Engineer 1 respectively. In February 2020, however, the two cosmonauts were moved to the Soyuz MS-16 flight due to medical issues with the commander of Soyuz MS-16, Nikolai Tikhonov. Ivanishin and Vagner were replaced by Ryzhikov and Kud-Sverchkov. Babkin remains an active cosmonaut, but has not yet been to space, while Tikhonov has retired from Roscosmos' astronaut corps.
Reacting to the COVID-19 pandemic, Roscosmos implemented a two-cosmonaut reserve crew to ensure the flight could go on with no delays, in the unlikely event both the prime and backup crews fall ill. It was not confirmed whether NASA planned to add an astronaut of their own to the reserve crew.