Progress M-4
Mission typeMir resupply
COSPAR ID1990-072A Edit this at Wikidata
SATCAT no.20752Edit this on Wikidata
Spacecraft properties
Spacecraft typeProgress-M 11F615A55
ManufacturerNPO Energia
Launch mass7,250 kilograms (15,980 lb)
Start of mission
Launch date15 August 1990, 04:00:41 (1990-08-15UTC04:00:41Z) UTC
Launch siteBaikonur Site 1/5
End of mission
Decay date20 September 1990, 11:42:49 (1990-09-20UTC11:42:50Z) UTC
Orbital parameters
Reference systemGeocentric
RegimeLow Earth
Perigee altitude368 kilometres (229 mi)[1]
Apogee altitude403 kilometres (250 mi)[1]
Inclination51.6 degrees
Docking with Mir
Docking portCore Forward
Docking date17 August 1990, 05:26:13 UTC
Undocking date17 September 1990, 12:42:43 UTC
Time docked1 month

Progress M-4 (Russian: Прогресс М-4) was a Soviet uncrewed cargo spacecraft which was launched in 1990 to resupply the Mir space station.[2] The twenty-second of sixty four Progress spacecraft to visit Mir, it used the Progress-M 11F615A55 configuration, and had the serial number 204.[3] It carried supplies including food, water and oxygen for the EO-7 crew aboard Mir, as well as equipment for conducting scientific research, and fuel for adjusting the station's orbit and performing manoeuvres.

Progress M-4 was launched at 04:00:41 GMT on 15 August 1990, atop a Soyuz-U2 carrier rocket flying from Site 1/5 at the Baikonur Cosmodrome.[3] It docked with the forward port of Mir's Core module at 05:26:13 GMT on 17 August.[4][5]

During the month for which Progress M-4 was docked, Mir was in an orbit of around 368 by 403 kilometres (199 by 218 nmi), inclined at 51.6 degrees.[1] Progress M-4 undocked from Mir at 12:42:43 GMT on 17 September, and was deorbited three days later on 20 September, with the deorbit burn starting at 11:04:27.[4] It burned up in the atmosphere over the Pacific Ocean, with remaining debris landing in the ocean at around 11:42:49.[1][4]

See also


  1. ^ a b c d McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 2009-08-27.
  2. ^ "Progress M-4". NSSDC Master Catalog. US National Space Science Data Center. Retrieved 2009-08-27.
  3. ^ a b McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 2009-08-27.
  4. ^ a b c Anikeev, Alexander. "Cargo spacecraft "Progress M-4"". Manned Astronautics - Figures & Facts. Archived from the original on 2008-06-21. Retrieved 2009-08-27.
  5. ^ Wade, Mark. "Progress M". Encyclopedia Astronautica. Archived from the original on 2009-07-10. Retrieved 2009-08-27.