Progress 27

Progress 27 (Russian: Прогресс 27) was a Soviet uncrewed Progress cargo spacecraft, which was launched in January 1987 to resupply the Mir space station.

Progress 27

A Progress 7K-TG spacecraft
Mission type	Mir resupply
COSPAR ID	1987-005A
SATCAT no.	17299[1]
Spacecraft properties
Spacecraft	Progress (No.135)
Spacecraft type	Progress 7K-TG[2]
Manufacturer	NPO Energia
Start of mission
Launch date	16 January 1987, 06:06:23 UTC[1]
Rocket	Soyuz-U2[2]
Launch site	Baikonur, Site 1/5
End of mission
Disposal	Deorbited
Decay date	25 February 1987, 15:16:45 UTC[3]
Orbital parameters
Reference system	Geocentric
Regime	Low Earth
Perigee altitude	183 km[3]
Apogee altitude	263 km[3]
Inclination	51.6°[3]
Period	89.0 minutes[3]
Epoch	16 January 1987
Docking with Mir
Docking port	Mir Core Module aft[3]
Docking date	18 January 1987, 07:26:50 UTC
Undocking date	23 February 1987, 11:29:01 UTC
Progress (spacecraft) ← Progress 26 Progress 28 →

Launch

Progress 27 launched on 16 January 1987 from the Baikonur Cosmodrome in the Kazakh SSR. It used a Soyuz-U2 rocket.^[2][4]

Docking

Progress 27 docked with the aft port of the Mir Core Module on 18 January 1987 at 07:26:50 UTC, and was undocked on 23 February 1987 at 11:29:01 UTC.^[3][5]

Decay

It remained in orbit until 25 February 1987, when it was deorbited. The deorbit burn occurred at 15:16:45 UTC and the mission ended at 16:05 UTC.^[3][5]

See also

• Spaceflight portal

• 1987 in spaceflight
• List of Progress missions
• List of uncrewed spaceflights to Mir