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 (1988-06-07UTC14:03:13Z) UTC[1]
Rocket	Soyuz-U2
Launch site	Baikonur 1/5
End of mission
Landing date	September 7, 1988, 00:49:38 (1988-09-07UTC00:49:39Z) 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.

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

v t e Soyuz programme Main topics Soyuz (rocket family) Soyuz (spacecraft) List of Soviet manned space missions List of Russian manned space missions Unmanned missions Kosmos 133 Kosmos 140 Kosmos 186 Kosmos 188 Kosmos 212 Kosmos 213 Kosmos 238 Soyuz 2 Kosmos 379 Kosmos 396 Kosmos 434 Kosmos 496 Kosmos 573 Kosmos 613 Kosmos 638 Kosmos 656 Kosmos 670 Kosmos 672 Kosmos 772 Soyuz 20 Kosmos 869 Kosmos 1001 Soyuz 32 (at landing) Kosmos 1074 Soyuz 34 (at start) Soyuz T-1 Soyuz TM-1 Manned missions Past Soyuz 7K-OK (1967–1970) 1 3 4 5 6 7 8 9 Soyuz 7K-OKS (1971) 10 11 Soyuz 7K-T (1973–1981) 12 13 14 15 17 18a 18 21 23 24 25 26 27 28 29 30 31 32 (at start) 33 34 (at landing) 35 36 37 38 39 40 Soyuz 7K-TM (1974–1976) 16 19 22 Soyuz-T (1976–1986) T-2 T-3 T-4 T-5 T-6 T-7 T-8 T-9 T-10-1 T-10 T-11 T-12 T-13 T-14 T-15 Soyuz-TM (1986–2003) TM-2 TM-3 TM-4 TM-5 TM-6 TM-7 TM-8 TM-9 TM-10 TM-11 TM-12 TM-13 TM-14 TM-15 TM-16 TM-17 TM-18 TM-19 TM-20 TM-21 TM-22 TM-23 TM-24 TM-25 TM-26 TM-27 TM-28 TM-29 TM-30 TM-31 TM-32 TM-33 TM-34 Soyuz-TMA (2003–2012) TMA-1 TMA-2 TMA-3 TMA-4 TMA-5 TMA-6 TMA-7 TMA-8 TMA-9 TMA-10 TMA-11 TMA-12 TMA-13 TMA-14 TMA-15 TMA-16 TMA-17 TMA-18 TMA-19 TMA-20 TMA-21 TMA-22 Soyuz-TMA-M (2010–2013) TMA-01M TMA-02M TMA-03M TMA-04M TMA-05M TMA-06M TMA-07M TMA-08M TMA-09M Current Soyuz-TMA-M (2013–2014) TMA-10M TMA-11M Planned Soyuz-TMA-M (2014–2015) TMA-12M TMA-13M TMA-14M TMA-15M TMA-16M TMA-17M TMA-18M TMA-19M Launch sites Baikonur Cosmodrome Site 1/5 Site 31/6

v t e Interkosmos programme Satellites Interkosmos 1 Interkosmos 2 Interkosmos 3 Interkosmos 4 Interkosmos 5 Interkosmos 6 Interkosmos 7 Interkosmos 8 Interkosmos 9 Interkosmos 10 Interkosmos 11 Interkosmos 12 Interkosmos 13 Interkosmos 14 Interkosmos 15 Interkosmos 16 Interkosmos 17 Interkosmos 18 Interkosmos 19 Interkosmos 20 Interkosmos 21 Interkosmos 22 Interkosmos 23 Interkosmos 24 Interkosmos 25 Interkosmos 26 Manned flights Soyuz 28 Soyuz 30 Soyuz 31 Soyuz 33 Soyuz 36 Soyuz 37 Soyuz 38 Soyuz 39 Soyuz 40 Soyuz T-6 Soyuz T-11 Soyuz TM-3 Soyuz TM-5 Soyuz TM-6 Soyuz TM-7

v t e Human spaceflights to Mir Soyuz T-15 Soyuz TM-2 Soyuz TM-3 Soyuz TM-4 Soyuz TM-5 Soyuz TM-6 Soyuz TM-7 Soyuz TM-8 Soyuz TM-9 Soyuz TM-10 Soyuz TM-11 Soyuz TM-12 Soyuz TM-13 Soyuz TM-14 Soyuz TM-15 Soyuz TM-16 Soyuz TM-17 Soyuz TM-18 Soyuz TM-19 Soyuz TM-20 STS-63 Soyuz TM-21 STS-71 Soyuz TM-22 STS-74 Soyuz TM-23 STS-76 Soyuz TM-24 STS-79 STS-81 Soyuz TM-25 STS-84 Soyuz TM-26 STS-86 STS-89 Soyuz TM-27 STS-91 Soyuz TM-28 Soyuz TM-29 Soyuz TM-30