Soyuz MS-08

Soyuz MS-08 was a Soyuz spaceflight that launched on 21 March 2018.^[3] It transported three members of the Expedition 55 crew to the International Space Station.^[3] MS-08 was the 137th flight of a Soyuz spacecraft. The crew consisted of a Russian commander, and two American flight engineers.

Soyuz MS-08

Soyuz MS-08 spacecraft
Operator	Roscosmos
COSPAR ID	2018-026A
SATCAT no.	43238
Mission duration	196d 18h 1m
Spacecraft properties
Spacecraft type	Soyuz-MS 11F747
Manufacturer	Energia
Launch mass	7,220
Crew
Crew size	3
Members	Oleg Artemyev Andrew J. Feustel Richard R. Arnold[1]
Callsign	Hawaii
Start of mission
Launch date	21 March 2018, 17:44 UTC[2]
Rocket	Soyuz-FG
Launch site	Baikonur Pad 1/5
Contractor	RKTs Progress
End of mission
Landing date	4 October 2018, 11:45 UTC
Landing site	Kazakhstan
Orbital parameters
Reference system	Geocentric
Regime	Low Earth
Docking with ISS
Docking port	Poisk zenith
Docking date	23 March 2018, 20:40 UTC[3]
Undocking date	4 October 2018, 07:57 UTC
Time docked	194d 11h 17m
(l-r) Arnold, Artemyev and Feustel Soyuz programme (crewed) ← Soyuz MS-07 Soyuz MS-09 →

MS-08 returned its crew to Earth on 4 October 2018.^[4]

Crew

Position	Crew member
Commander	Oleg Artemyev, Roscosmos Expedition 55 Second spaceflight
Flight Engineer 1	Andrew J. Feustel, NASA Expedition 55 Third and last spaceflight
Flight Engineer 2	Richard R. Arnold, NASA Expedition 55 Second and last spaceflight

^[1]

Backup crew

Sources:^[5][6]

Position	Crew member
Commander	Aleksey Ovchinin, Roscosmos
Flight Engineer 1	Nick Hague, NASA