Soyuz MS-23
| Soyuz MS-23 arriving at the International Space Station | |
| Names | ISS 69S | 
|---|---|
| Mission type | Uncrewed spacecraft replacement mission to ISS | 
| Operator | Roscosmos | 
| COSPAR ID | 2023-024A | 
| SATCAT no. | 55688 | 
| Mission duration | 215 days, 10 hours and 53 minutes | 
| Spacecraft properties | |
| Spacecraft | Soyuz MS No. 754 | 
| Spacecraft type | Soyuz MS | 
| Manufacturer | Energia | 
| Crew | |
| Crew size | 0 up, 3 down | 
| Landing | |
| Start of mission | |
| Launch date | 24 February 2023, 00:24 UTC | 
| Rocket | Soyuz 2.1a | 
| Launch site | Baikonur, 31/6 | 
| Contractor | RKTs Progress | 
| End of mission | |
| Landing date | 27 September 2023, 11:17 UTC | 
| Landing site | Kazakh Steppe, Kazakhstan | 
| Orbital parameters | |
| Reference system | Geocentric orbit | 
| Regime | Low Earth orbit | 
| Inclination | 51.66° | 
| Docking with ISS | |
| Docking port | Poisk zenith | 
| Docking date | 26 February 2023, 00:58 UTC | 
| Undocking date | 6 April 2023, 08:45 UTC | 
| Time docked | 39 days, 7 hours and 47 minutes | 
| Docking with ISS (relocation) | |
| Docking port | Prichal nadir | 
| Docking date | 6 April 2023, 09:22 UTC | 
| Undocking date | 27 September 2023, 07:54:21 UTC | 
| Time docked | 173 days, 22 hours and 32 minutes | 
| Cargo | |
| Mass | ~430 kg (950 lb) | 
| Landing mission insignia, which incorporated elements from the launching mission insignia From left: Rubio, Prokopyev, and Petelin | |
Soyuz MS-23 was an uncrewed Russian Soyuz spaceflight that launched from Baikonur on 24 February 2023 to the International Space Station to replace the damaged Soyuz MS-22 spacecraft for landing that NASA astronaut Francisco Rubio and Roscosmos cosmonauts Sergey Prokopyev and Dmitry Petelin launched onboard on 21 September 2022 and had a coolant leak on 14 December before returning to Earth uncrewed on 28 March 2023.