 Commemorative stamp of 1977 of Viktor Gorbatko and Yuri Glazkov | |
| Operator | Soviet space program |
|---|---|
| COSPAR ID | 1977-008A |
| SATCATno. | 09804 |
| Mission duration | 17 days 17 hours 26 minutes |
| Orbits completed | 285 |
| Spacecraft properties | |
| Spacecraft | Soyuz 7K-T No.11 |
| Spacecraft type | Soyuz 7K-T/A9 |
| Manufacturer | NPO Energia |
| Launch mass | 6750 kg[1] |
| Landing mass | 1200 kg |
| Crew | |
| Crew size | 2 |
| Members | Viktor Gorbatko Yuri Glazkov |
| Callsign | Терек (Terek) Terek River |
| Start of mission | |
| Launch date | 7 February 1977, 16:11UTC |
| Rocket | Soyuz-U |
| Launch site | Baikonur,Site 1/5[2] |
| End of mission | |
| Landing date | 25 February 1977, 09:38 UTC |
| Landing site | 37 km at the northeast ofArkalyk,Kazakhstan |
| Orbital parameters | |
| Reference system | Geocentric orbit[3] |
| Regime | Low Earth orbit |
| Perigee altitude | 184.7 km |
| Apogee altitude | 346.2 km |
| Inclination | 51.65° |
| Period | 89.52 minutes |
| Docking withSalyut 5 | |
| Docking date | 8 February 1977 |
| Undocking date | 25 February 1977 |
| Time docked | 17 days |
 Vimpel Diamond patch | |
Soyuz 24 (Russian:Союз 24,Union 24) was a February, 1977,Soviet mission to theSalyut 5space station, the third and final mission to the station, the last purely military crew for the Soviets and the final mission to amilitary Salyut.[4] ThecosmonautsViktor Gorbatko andYuri Glazkov re-activated the station after toxic fumes had apparently terminated the mission ofSoyuz 21, the previous crew.
They performed biological and materials experiments while on board. Other presumed activities includedphotographic reconnaissance, and finishing tasks the previous crew was forced to abandon when their mission abruptly ended. The Soyuz 24 crew landed after spending 18 days in space, and the Salyut station was de-orbited six months later.
| Position | Cosmonaut | |
|---|---|---|
| Commander | Viktor Gorbatko Second spaceflight | |
| Flight engineer | Yuri Glazkov Only spaceflight | |
| Position | Cosmonaut | |
|---|---|---|
| Commander | Anatoly Berezovoy | |
| Flight engineer | Mikhail Lisun | |
| Position | Cosmonaut | |
|---|---|---|
| Commander | Vladimir Kozelsky | |
| Flight engineer | Vladimir Preobrazhensky | |
The cosmonauts Gorbatko and Glazkov were the back-up crew forSoyuz 23, which failed to dock withSalyut 5 several months earlier.[5] Soyuz 24 was launched 7 February 1977, and successfully docked with the orbiting space station the next day. However, the crew did not immediately enter the station, atypically having a sleep period first and delaying their entry by some 11 hours.[5] Observers speculate that problems with fumes which may have caused the Soyuz 21 crew to leave were resolved or dealt with by the new crew.[5] They entered the station wearing breathing apparatus and made numerous tests of the atmosphere before apparently concluding conditions were safe and removing their breathing devices.[6]
Observers speculate that the flight had a specific objective and was not meant to be a long-duration mission. In any case, fuel for the station to maneuver was too depleted to attempt a long mission.[5] The crew continued the research started by the Soyuz 21 crew,[6] performed Earth resources work, biological and materials experiments. But, being a part of theAlmaz military Salyut program, other unrevealed projects were likely carried out. The flight would prove to be not only the final flight to a military Salyut station, but also the final all-military crew to be launched by the Soviets.[6] On 21 February 1977, the crew performed an air-changing experiment, shown on TV, slowly venting air from one end of the station to the other while releasing 100 kg of air from tanks in the docked Soyuz orbital module. This was a test of the future air replenishment techniques to be carried out withProgress transports in subsequent space stations.[5]
They began to activate the Soyuz 24 on 23 February 1977, then deactivate the space station, and undocked and landed nearArkalyk on 25 February 1977. The Soyuz landed in a blowing snowstorm and recovery crews could not locate the space capsule. As it turned out, thesearch and rescue beacon was unable to deploy due to being jammed shut from snow, so Gorbatko had to free it by hand.[5]
On 26 February 1977, Salyut 5 ejected a research module. The research module, which was recovered on Soviet territory, containing exposed film and experiments carried out by the two crews who crewed the space station.[5][6] TheSalyut 5 space station was deorbited on 8 August 1977.
This article incorporates text from this source, which is in thepublic domain. This article incorporates text from this source, which is in thepublic domain.| Main topics |  | ||||||||||||||||||||||||||
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Uncrewed missions are designated asKosmos instead ofSoyuz; exceptions are noted "(uncrewed)". The † sign designates failed missions.Italics designates cancelled missions. | |||||||||||||||||||||||||||
