Progress 39

Progress 39 (Russian: Прогресс 39) was a Soviet unmanned Progress cargo spacecraft, which was launched in December 1988 to resupply the Mir EO-4 expedition aboard the Mir space station.

Progress 39

A Progress 7K-TG spacecraft
Mission type	Mir resupply
COSPAR ID	1988-114A
SATCAT no.	19728[1]
Spacecraft properties
Spacecraft	Progress (No.147)
Spacecraft type	Progress 7K-TG[2]
Manufacturer	NPO Energia
Start of mission
Launch date	25 December 1988, 04:11:37 UTC[1]
Rocket	Soyuz-U2[2]
Launch site	Baikonur, Site 1/5
End of mission
Disposal	Deorbited
Decay date	7 February 1989, 13:49 UTC[3]
Orbital parameters
Reference system	Geocentric
Regime	Low Earth
Perigee altitude	187 km[3]
Apogee altitude	238 km[3]
Inclination	51.6°[3]
Period	88.8 minutes[3]
Epoch	25 December 1988
Docking with Mir
Docking port	Kvant-1 aft[3]
Docking date	27 December 1988, 05:35:10 UTC
Undocking date	7 February 1989, 06:45:34 UTC
Progress (spacecraft) ← Progress 38 Progress 40 →

Launch

Progress 39 launched on 25 December 1988 from the Baikonur Cosmodrome in the Kazakh SSR. It used a Soyuz-U2 rocket.^[2][4]

Docking

Progress 39 docked with the aft port of the Kvant-1 module of Mir on 27 December 1988 at 05:35:10 UTC, and was undocked on 7 February 1989 at 06:45:34 UTC.^[3][5]

Decay

It remained in orbit until 7 February 1989, when it was deorbited. The deorbit burn occurred at around 12:49 UTC and the mission ended at 13:49 UTC.^[3][5]

See also

• Spaceflight portal

• 1988 in spaceflight
• List of Progress missions
• List of uncrewed spaceflights to Mir