|Mission type||ISS resupply|
|Mission duration||196 days (planned)|
|Spacecraft type||Progress MS|
|Launch mass||7000 kg|
|Start of mission|
|Launch date||3 June 2022 (planned)|
|Launch site||Baikonur, Site 31|
|Contractor||Progress Rocket Space Centre|
|End of mission|
|Reference system||Geocentric orbit|
|Regime||Low Earth orbit|
|Docking with ISS|
Progress MS-20 (Russian: Прогресс МC-20), Russian production No.450, identified by NASA as Progress 81P, is a Progress spacecraft launched by Roscosmos to resupply the International Space Station (ISS). This will be the 173rd flight of a Progress spacecraft.
The Progress-MS is a uncrewed freighter based on the Progress-M featuring improved avionics. This improved variant first launched on 21 December 2015. It has the following improvements:
On 3 February 2021, the State Commission for Testing of the Piloted Space Systems, chaired by Roskosmos head Dmitry Rogozin, approved the latest ISS schedule for 2021 and the first quarter of 2022.
A Soyuz-2.1a will launch Progress MS-20 to the International Space Station from Baikonur Site 31 on 3 June 2022 on a fast-track trajectory. Around 3 hours 20 minutes after the launch, Progress MS-20 will automatically dock to the zenith (space-facing) port of the MIM2 Poisk module and continue its mission for 196 days, supporting Expedition 67 and Expedition 68 missions aboard the ISS.
The Progress MS-20 spacecraft is loaded with 0 kg (0 lb) of cargo, with 0 kg (0 lb) of this being dry cargo.
The Progress MS-20 is scheduled to remain docked at the station through late 2022, when it will depart with trash and re-enter the Earth's atmosphere for destruction over the South Pacific Ocean.