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Soyuz 37

Soyuz 37
Crew: Viktor Gorbatko with Phạm Tuân
Mission duration 79 days, 15 hours, 16 minutes, 54 seconds
Orbits completed 124
Spacecraft properties
Spacecraft type Soyuz 7K-T
Manufacturer NPO Energia
Launch mass 6,800 kilograms (15,000 lb)
Crew size 2
Launching Viktor Gorbatko
Pham Tuân
Landing Leonid Popov
Valery Ryumin
Callsign Терек (Terek - Terek River
Start of mission
Launch date July 23, 1980, 18:33:03 (1980-07-23T18:33:03Z) UTC
Rocket Soyuz-U
Launch site Baikonur 1/5
End of mission
Landing date Did not recognize date. Try slightly modifying the date in the first parameter. UTC
Landing site 180 kilometres (110 mi) SE of Dzhezkazgan
Orbital parameters
Reference system Geocentric
Regime Low Earth
Perigee 197.8 kilometres (122.9 mi)
Apogee 293.1 kilometres (182.1 mi)
Inclination 51.61 degrees
Period 89.12 minutes
Docking with Salyut 6

Soyuz programme
(Manned missions)
← Soyuz T-2 Soyuz 38

Soyuz 37 (Russian: Союз 37, Union 37) was a 1980 Soviet manned space flight to the Salyut 6 space station. It was the 13th mission to and 11th successful docking at the orbiting facility. The Soyuz 37 crew were the third to visit the long-duration Soyuz 35 resident crew.[1]

Soyuz 37 carried Soviet Viktor Gorbatko and Pham Tuân, the first Asian and first Vietnamese cosmonaut, into space. They swapped Soyuz craft with the long-duration crew and returned to earth in Soyuz 36, the resident crew later used their craft to return to earth.


  • Crew 1
    • Backup crew 1.1
  • Mission parameters 2
  • Mission highlights 3
  • References 4


Position Launching crew Landing crew
Commander Viktor Gorbatko
Third spaceflight
 Soviet Union
Leonid Popov
First spaceflight
 Soviet Union
Flight Engineer Pham Tuân
Only spaceflight
Intercosmos Research Cosmonaut
Valery Ryumin
Third spaceflight
 Soviet Union

Backup crew

Position Crew
Commander Valery Bykovsky
 Soviet Union
Flight Engineer Bui Thanh Liem

Mission parameters

  • Mass: 6,800 kg (15,000 lb)
  • Perigee: 197.8 km (122.9 mi)
  • Apogee: 293.1 km (182.1 mi)
  • Inclination: 51.61°
  • Period: 89.12 minutes

Mission highlights

Pham Tuan of Vietnam arrived with Commander Viktor Gorbatko aboard Salyut 6 in Soyuz 37; they both returned to Earth in the Soyuz 36 spacecraft approximately eight days later. Tuan’s 30 experiments involved observing Vietnam from space, life sciences (including tests of growth of Vietnamese azolla water ferns, with application to future closed-loop life support systems), and materials processing. The long-duration crew launched in Soyuz 35 returned to earth in the Soyuz 37 spacecraft at the end of their 186-day mission.


  1. ^ The mission report is available here:
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