| COSPAR ID | 1988-048A |
|---|---|
| SATCATno. | 19204 |
| Mission duration | 91 days, 10 hours, 46 minutes, 25 seconds[1] |
| Orbits completed | ~1,475 |
| Spacecraft properties | |
| Spacecraft | Soyuz 7K-STM No. 55 |
| 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 | 7 June 1988, 14:03:13 (1988-06-07UTC14:03:13Z) UTC[1] |
| Rocket | Soyuz-U2 |
| Launch site | Baikonur1/5 |
| End of mission | |
| Landing date | 7 September 1988, 00:49:38 (1988-09-07UTC00:49:39Z) UTC |
| Landing site | 202 kilometres (126 mi) SE ofDzhezkazgan |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Low Earth |
| Perigee altitude | 173 kilometres (107 mi) |
| Apogee altitude | 241 kilometres (150 mi) |
| Inclination | ~51.6 degrees |
| Period | 88.6 minutes |
| Docking withMir[2] | |
| Docking date | 9 June 1988, 15:57:10 UTC |
| Undocking date | 5 September 1988, 23:54:57 UTC |
 Soyuz programme (Crewed missions) | |
Soyuz TM-5 was a crewedSoyuz spaceflight toMir. It was launched on June 7, 1988, carrying theMir EP-2 mission's three-person crew. This week-long stay onMir occurred during the third long-duration Mir expedition,Mir EO-3. The crew of EP-2 returned to Earth aboardSoyuz 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 landedMir EP-3 mission's two-person visiting crew. The de-orbit procedures for Soyuz were revised after this flight, as multiple issues almost prevented thedescent module's safe de-orbit and landing.
| Position | Launching crew | Landing crew |
|---|---|---|
| Commander | Anatoly Solovyev Mir EP-2 First spaceflight | Vladimir Lyakhov Mir EP-3 Third and last spaceflight |
| Flight engineer | Viktor Savinykh Mir EP-2 Third and last spaceflight | None |
| Research cosmonaut | Aleksandr Aleksandrov,Bulgaria Mir EP-2 Only spaceflight | Abdul Ahad Mohmand,Afghanistan Mir EP-3 Only spaceflight |
| Aleksandrov was the firstBulgarian cosmonaut to visit a space station. Mohmand was the firstAfghan cosmonaut. | ||
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 reachSalyut 6 onSoyuz 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.
On September 5 cosmonauts Lyakhov and Mohmand undocked from Mir. They jettisoned theorbital module and made ready fordeorbit burn to return to Earth. During descent, the spacecraft experienced a computer software problem combined with a sensor problem.[3] 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. Consequently, they soiled themselves.[4] They would not have been able to redock with Mir because they had discarded the docking system along with the orbital module.[4] 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.[4]
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Uncrewed missions are designated asKosmos instead ofSoyuz; exceptions are noted "(uncrewed)". The † sign designates failed missions.Italics designates cancelled missions. | |||||||||||||||||||||||||||
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