Progress MS-12

Progress MS-12 (Russian: Прогресс МC-12), identified by NASA as Progress 73P, was a Progress spacecraft used by Roscosmos to resupply the International Space Station (ISS).[3]

Progress MS-12
ISS-60 Progress MS-12 approaches the ISS.jpg
Progress MS-12 approaches the ISS.
Mission typeISS resupply
COSPAR ID2019-047A
SATCAT no.44455
Mission duration121 days
Spacecraft properties
SpacecraftProgress MS-12 s/n 442
Spacecraft typeProgress-MS
ManufacturerRKK Energia
Launch mass7392 kg [1]
Payload mass3434 kg
Start of mission
Launch date31 July 2019, 12:10:46 UTC [2]
RocketSoyuz-2.1a s/n N15000-035
Launch siteBaikonur, Site 31/6
ContractorProgress Rocket Space Centre
End of mission
Decay date29 November 2019, 14:19 UTC
Orbital parameters
Reference systemGeocentric
RegimeLow Earth
Epoch31 July 2019
Docking with ISS
Docking portPirs
Docking date31 July 2019, 15:29 UTC [2]
Undocking date29 November 2019 10:25 UTC [3]
Time docked121 days
Mass3434 kg
Pressurised1164 kg
Fuel850 kg
Gaseous51 kg
Water420 kg
Progress ISS Resupply


In 2014, the launch was planned for 1 July 2018, rescheduled for 5 June 2019 and rescheduled to 31 July 2019. The liftoff had been initially set for the two-day rendezvous profile with the station, but the launch time was later shifted to enable a two-orbit (three-hour) flight to the station.[4]


Progress MS-12 was launched in 31 July 2019, at 12:10:46 UTC from Baikonur Cosmodrome in Kazakhstan, using a Soyuz-2.1a rocket.[3]


Progress MS-12 docked with the Pirs docking module. The docking took place 3 hours 18 minutes 31 seconds into the mission (a new record time).


The Progress MS-12 spacecraft delivered 1,164 kilograms (2,566 lb) of dry cargo (in the cargo compartment), 420 kilograms (930 lb) of water (in the Rodnik-system tanks), 51 kilograms (112 lb) of oxygen (in pressurized bottles), 850 kilograms (1,870 lb) of propellant in the refueling section and 880 kilograms (1,940 lb) of propellant in the integrated propulsion system to the International Space Station. The dry cargo consisted of: 394 kilograms (869 lb) of hardware for onboard systems, 27 kilograms (60 lb) of medical supplies, 1 kilogram (2.2 lb) of personal protective gear, 190 kilograms (420 lb) of hygiene items, 7 kilograms (15 lb) of repairs and servicing equipment, 20 kilograms (44 lb) of means of crew support, 282 kilograms (622 lb) of food, 13 kilograms (29 lb) of payloads, 38 kilograms (84 lb) of structural components and other hardware and 192 kilograms (423 lb) of NASA cargo.[3]

Undocking and decayEdit

The Progress MS-12 craft undocked from ISS on 29 November 2019 at 10:25 UTC, initiated braking maneuver at 13:39 UTC, re-entered Earth's atmosphere at 14:11 UTC (end of mission), with any remaining debris impacting a remote part of Pacific Ocean at 14:19 UTC.[3]


  1. ^ - 12 May 2020
  2. ^ a b SpaceFacts
  3. ^ a b c d e
  4. ^ NASA Office of Inspector General (28 June 2016). NASA's Response to SpaceX's June 2015 Launch Failure: Impacts on Commercial Resupply of the International Space Station (PDF) (Report). NASA Office of Inspector General. p. 13. Retrieved 18 July 2016.   This article incorporates text from this source, which is in the public domain.