Soyuz MS-09
| Soyuz MS-09 docked to the Rassvet module | |
| Mission type | ISS crew transport | 
|---|---|
| Operator | Roscosmos | 
| COSPAR ID | 2018-051A | 
| SATCAT no. | 43493 | 
| Mission duration | 196 days, 17 hours, 50 minutes | 
| Spacecraft properties | |
| Spacecraft | Soyuz MS No. 739 | 
| Spacecraft type | Soyuz MS (11F747) | 
| Manufacturer | Energia | 
| Crew | |
| Crew size | 3 | 
| Members | Sergey Prokopyev Alexander Gerst Serena Auñón-Chancellor | 
| Callsign | Altai | 
| Expedition | Expedition 56 / 57 | 
| Start of mission | |
| Launch date | 6 June 2018, 11:12:41 UTC | 
| Rocket | Soyuz-FG | 
| Launch site | Baikonur, Pad 1/5 | 
| Contractor | RKTs Progress | 
| End of mission | |
| Landing date | 20 December 2018, 05:02:00 UTC | 
| Landing site | Kazakh Steppe | 
| Orbital parameters | |
| Reference system | Geocentric | 
| Regime | Low Earth | 
| Docking with ISS | |
| Docking port | Rassvet nadir | 
| Docking date | 8 June 2018, 13:01 UTC | 
| Undocking date | 20 December 2018, 01:42 UTC | 
| Time docked | 194 days, 12 hours, 41 minutes | 
| From left: Prokopyev, Gerst and Auñón-Chancellor | |
Soyuz MS-09 was a Soyuz spaceflight that launched on 6 June 2018. It transported three members of the Expedition 56/57 crew to the International Space Station (ISS). MS-09 is the 138th flight of a Soyuz spacecraft. The crew consisted of a Russian commander along with an American and a German flight engineer. The mission ended at 05:02 UTC on 20 December 2018.