Soyuz T-5

Crew

Backup crew

Mission parameters

• Mass: 6850 kg
• Perigee: 190 km
• Apogee: 231 km
• Inclination: 51.6°
• Period: 89.7 minutes

Mission highlights

This was the first (1st) expedition to the new Salyut 7 space station, launched into Earth orbit earlier in 1982. Salyut 7 was similar to the Salyut 6 (1977–1982) space station it superseded, but featured a number of improvements. The Soyuz T-5 spacecraft docked with Salyut 7 in orbit, and it was visited by the 2nd and 3rd expeditions to the space station. One advantage the new Salyut 7 station had over Salyut 6, was continuously available hot water.

The Elbrus crew ejected a 28-kg amateur radio satellite from a Salyut 7 trash airlock on May 17, 1982. The Soviets called this the first launch of a communications satellite from a crewed space vehicle. They did this ahead of the launch of two large geostationary satellites from the U.S. Space Shuttle (STS-5, November 11–16, 1982).

On May 25, the Elbrus crew reoriented Salyut 7 so the aft end of the Progress pointed toward Earth. This placed the station in gravity-gradient stabilization. Lebedev remarked in his diary that the attitude control jets were “very noisy,” and that they sounded like “hitting a barrel with a sledgehammer.” Of Salyut 7 during the unpacking of Progress 13, Lebedev said, “It looks like we’re getting ready to move or have just moved to a new apartment.” The following day the Elbrus crew closed the hatch from the work compartment into the intermediate compartment so the TsUP could pump fuel from Progress 13 to Salyut 7. The crew monitored the operation but played little active role in it. May 29 was spent organizing the supplies delivered. At the same time, according to Lebedev, “we filled the resupply ship with what we don’t need and tied them down with ropes. When I enter the resupply ship, it jingles with a metallic sound, so when we separate it will sound like a brass band.” Progress 13 pumped 300 liters of water aboard on May 31. On June 2 Progress 13 lowered the station's orbit to 300 km to receive Soyuz T-6.

In July, Valentin Lebedev, in charge of the plant experiments, reported that the Arabidopsis plants, chosen for their short 40-day lifecycle, had become the first plants to flower and produce seeds in the zero gravity of space, a Guinness World Record.

End of T-5

thumb|Dneiper crew The Soyuz T-5 spacecraft was undocked in August 1982, leaving Salyut 7 and Soyuz T-7 spacecraft in orbit. The Soyuz T-5 had been in space six weeks.

The initial "Elbrus crew", would return to Earth in the Soyuz T-7 spacecraft in December 1982.

References

References

1. The mission report is available here: http://www.spacefacts.de/mission/english/soyuz-T-5.htm
2. [http://ston.jsc.nasa.gov/collections/TRS/_techrep/RP1357.pdf David Portree - '''Mir Hardware Heritage''' (1995) - Page 90-95 - NASA RP1357] {{webarchive. link. (2009-09-07)
3. The spacecraft returned to Earth successfully with Popov, Serebrov and Savitskaya, also called the "Dneiper crew".[http://www.spacefacts.de/mission/english/soyuz-t5.htm www.spacefacts.de = '''Human Spaceflights: International Flight-No. 81''']
4. (2003). "Soyuz: A Universal Spacecraft". Springer Science & Business Media.