Progress 8 Explained

Progress 8
Mission Type:Salyut 6 resupply
Operator:OKB-1
Cospar Id:1980-024A
Satcat:11743 [1]
Mission Duration:30 days
Spacecraft:Progress s/n 108
Spacecraft Type:Progress 7K-TG
Manufacturer:NPO Energia
Launch Date:27 March 1980, 18:53:31 UTC
Launch Rocket:Soyuz-U s/n Zh15000-200
Launch Site:Baikonur, 31/6
Launch Contractor:OKB-1
Dry Mass:6520 kg
Launch Mass:7020 kg
Payload Mass:2500 kg
Dimensions:7.48 m in length and
2.72 m in diameter
Docking:
Docking Type:dock
Docking Port:Aft [2]
Docking Date:29 March 1980, 20:01:00 UTC
Undocking Date:25 April 1980, 08:04:00 UTC
Time Docked:26.5 days
Disposal Type:Deorbited
Decay Date:26 April 1980, 06:54 UTC [3]
Orbit Epoch:27 March 1980
Orbit Reference:Geocentric
Orbit Regime:Low Earth
Orbit Periapsis:154.0 km
Orbit Apoapsis:186.0 km
Orbit Inclination:51.66°
Orbit Period:87.80 minutes
Apsis:gee
Cargo Mass:2500 kg
Previous Mission:Progress 7
Next Mission:Progress 9

Progress 8, was a Soviet uncrewed Progress cargo spacecraft which was launched in 1980 to resupply the Salyut 6 space station.

Spacecraft

Progress 8 was a Progress 7K-TG spacecraft. The eighth of forty three to be launched, it had the serial number 108.[4] [5] The Progress 7K-TG spacecraft was the first generation Progress, derived from the Soyuz 7K-T and intended for uncrewed logistics missions to space stations in support of the Salyut programme. On some missions the spacecraft were also used to adjust the orbit of the space station.

The Progress spacecraft had a dry mass of, which increased to around when fully fuelled. It measured in length, and in diameter. Each spacecraft could accommodate up to of payload, consisting of dry cargo and propellant. The spacecraft were powered by chemical batteries, and could operate in free flight for up to three days, remaining docked to the station for up to thirty.[6]

Launch

Progress 8 launched on 27 March 1980 from the Baikonur Cosmodrome in the Kazakh Soviet Socialist Republic. It used a Soyuz-U rocket. [7]

Docking

Progress 8 docked with Salyut 6 on 29 March 1980 at 20:01 UTC.[8]

See also

Notes and References

  1. Web site: Launchlog. Jonathan's Space Report. 18 June 2019.
  2. Web site: Cargo spacecraft "Progress-8". Manned Astronautics figures and facts . https://web.archive.org/web/20070911003025/http://space.kursknet.ru/cosmos/english/cargoes/pr8.sht. 11 September 2007.
  3. Web site: Progress 8. NASA. 18 June 2019.
  4. Web site: Progress 1 - 42 (11F615A15, 7K-TG). Gunter. Krebs. Gunter's Space Page. 26 November 2010.
  5. Web site: Launch Log. McDowell. Jonathan. Jonathan's Space Page. 26 November 2010.
  6. Book: Hall. Rex D.. Shayler. David J.. Soyuz: A Universal Spacecraft. 2003 . Springer-Praxis. 1-85233-657-9. 239–250.
  7. Web site: Progress 1 - 42 (11F615A15, 7K-TG). Gunter's Space Page. 18 June 2019.
  8. Web site: Salyut 6. https://web.archive.org/web/20161210174048/http://www.astronautix.com/s/salyut6.html. dead. 10 December 2016. Astronautix. 18 June 2019.