Soyuz 27

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This article is about the Soyuz 27 spacecraft. For the crew launched in Soyuz 27, see Salyut 6 EP-1.
Soyuz 27
Mission duration 64 days, 22 hours, 52 minutes, 47 seconds
Orbits completed 1,025
Spacecraft properties
Spacecraft type Soyuz 7K-T
Manufacturer NPO Energia
Launch mass 6,800 kilograms (15,000 lb)
Crew
Crew size 2
Launching Vladimir Dzhanibekov
Oleg Makarov
Landing Yuri Romanenko
Georgi Grechko
Callsign Памир (Pamir - "Pamir Mountains")
Start of mission
Launch date January 10, 1978, 12:26:00 (1978-01-10UTC12:26Z) UTC
Rocket Soyuz-U
Launch site Baikonur 1/5[1]
End of mission
Landing date March 16, 1978, 11:18:47 (1978-03-16UTC11:18:48Z) UTC
Landing site 310 kilometres (190 mi) W of Tselinograd
Orbital parameters
Reference system Geocentric
Regime Low Earth
Perigee 198.9 kilometres (123.6 mi)
Apogee 253.8 kilometres (157.7 mi)
Inclination 51.65 degrees
Period 88.73 minutes
Docking with Salyut 6

Soyuz programme
(Manned missions)
← Soyuz 26 Soyuz 28

Soyuz 27 (Russian: Союз 27, Union 27) was a 1978 Soviet manned spacecraft which flew to the orbiting Salyut 6 space station, during the mission EP-1.[2] It was the third manned flight to the station, and the second successful docking. Once docked, it marked the first time that three spacecraft were docked together.

The main function of the EP-1 mission was to swap Soyuz craft with the orbiting crew, in so doing freeing a docking port for a forthcoming supply tanker. Cosmonauts Vladimir Dzhanibekov and Oleg Makarov returned to earth in the Soyuz 26 spacecraft after spending five days on the station.

Crew[edit]

Position Launching Cosmonaut Landing Cosmonaut
Commander Vladimir Dzhanibekov
EP-1
First spaceflight
Yuri Romanenko
EO-1
First spaceflight
Flight Engineer Oleg Makarov
EP-1
Third spaceflight
Georgi Grechko
EO-1
Second spaceflight

Backup crew[edit]

Position Cosmonaut
Commander Vladimir Kovalyonok
Flight Engineer Aleksandr Ivanchenkov
The launching and landing crews had the same backups

Mission parameters[edit]

  • Mass: 6,800 kg (15,000 lb)
  • Perigee: 198.9 km (123.6 mi)
  • Apogee: 253.8 km (157.7 mi)
  • Inclination: 51.65°
  • Period: 88.73 minutes

External links[edit]

References[edit]

  1. ^ "Baikonur LC1". Encyclopedia Astronautica. Retrieved 2009-03-04. 
  2. ^ The mission report is available here: http://www.spacefacts.de/mission/english/soyuz-27.htm