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Soyuz TM-5

Soyuz TM-5
Mission duration 91 days, 10 hours, 46 minutes, 25 seconds[1]
Orbits completed ~1,475
Spacecraft properties
Spacecraft type Soyuz-TM
Manufacturer NPO Energia
Launch mass 7,000 kilograms (15,000 lb)
Crew
Crew size 3 up
2 down
Launching Anatoly Solovyev
Viktor Savinykh
Aleksandr Aleksandrov
Landing Vladimir Lyakhov
Abdul Ahad Mohmand
Callsign Родни́к (Rodnik- Spring)
Start of mission
Launch date June 7, 1988, 14:03:13 (1988-06-07T14:03:13Z) UTC[1]
Rocket Soyuz-U2
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 202 kilometres (126 mi) SE of Dzhezkazgan
Orbital parameters
Reference system Geocentric
Regime Low Earth
Perigee 173 kilometres (107 mi)
Apogee 241 kilometres (150 mi)
Inclination ~51.6 degrees
Period 88.6 minutes
Docking with Mir


Soyuz programme
(Manned missions)
← Soyuz TM-4 Soyuz TM-6

Soyuz TM-5 the fifth cosmonaut-carrying spacecraft to visit the Russian Space Station Mir. It was launched on June 7, 1988, carrying the Mir EP-2 mission's three-person crew. This week-long stay on Mir occurred during the third long-duration Mir expedition, Mir EO-3. The crew of EP-2 returned to Earth aboard Soyuz TM-4, while the TM-5 spacecraft remained docked to Mir, acting as the lifeboat for the long-duration crew. On September 7, 1988, the TM-5 spacecraft undocked from Mir, and landed Mir EP-3 mission's two-person visiting crew. The de-orbit procedures for Soyuz were revised after this flight, as multiple issues almost prevented the Descent Module's safe de-orbit and landing.

Contents

  • Crew 1
  • Launch 2
  • Landing 3
  • References 4

Crew

Position Launching crew Landing crew
Commander  Anatoly Solovyev
Mir EP-2
First spaceflight
 Vladimir Lyakhov
Mir EP-3
Third spaceflight
Flight Engineer  Viktor Savinykh
Mir EP-2
Third spaceflight
None
Research Cosmonaut  Aleksandr Aleksandrov
Mir EP-2
First spaceflight
 Abdul Ahad Mohmand
Mir EP-3
First spaceflight
Aleksandrov was the first Bulgarian cosmonaut to visit a space station. Mohmand was the first Afghan cosmonaut.

Launch

Soyuz TM-5 launched on 1988 June 7 and arrived at Mir on June 9 carrying the second Bulgarian in space, Alexandrov (not to be confused with the Soviet cosmonaut of the same name). He became the first Bulgarian to reach a Soviet space station (Georgi Ivanov failed to reach Salyut 6 on Soyuz 33 in 1979—Alexandrov was his backup). Their launch had been advanced by 2 weeks late in the planning stages to improve lighting conditions for the Rozhen astronomical experiment.

Landing

On September 5 cosmonauts Lyakhov and Mohmand undocked from Mir. They jettisoned the orbital module and made ready for deorbit burn to return to Earth. During descent, the spacecraft experienced a computer software problem combined with a sensor problem.[2] This caused their landing to be delayed by a full day. The Descent Module, where they spent this 24-hour period, had no sanitary facilities.[3] They would not have been able to redock with Mir because they had discarded the docking system along with the orbital module.[3] Reentry occurred as normal on September 7. Following this incident, the Soviets decided that on future missions, they would retain the orbital module until after deorbit burn, as they had done on the Soyuz Ferry flights.[3]

References

  1. ^ a b """Spacecraft "Soyuz TM-5. space.kursknet. Retrieved 26 November 2010. 
  2. ^ David Michael Harland (February 2005). The story of Space Station Mir.  
  3. ^ a b c D.S.F. Portree. "Mir Hardware Heritage" (PDF). NASA. Retrieved 26 November 2010. 
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