Progress 5 Explained

Progress 5
Mission Type:Salyut 6 resupply
Operator:OKB-1
Cospar Id:1979-022A
Satcat:11292[1]
Mission Duration:24 days
Spacecraft:Progress s/n 104
Spacecraft Type:Progress 7K-TG
Manufacturer:NPO Energia
Dry Mass:6520 kg
Launch Mass:7020 kg
Payload Mass:2500 kg
Dimensions:7.48 m in length and
2.72 m in diameter
Launch Date:12 March 1979, 05:47:28 UTC
Launch Rocket:Soyuz-U s/n Ye15000-162
Launch Site:Baikonur, Site 31/6
Launch Contractor:OKB-1
Docking:
Docking Type:dock
Docking Port:Aft[2]
Docking Date:14 March 1979, 07:19:21 UTC
Undocking Date:3 April 1979, 16:10:00 UTC
Time Docked:20.4 days
Disposal Type:Deorbited
Decay Date:5 April 1979, 01:04 UTC[3]
Orbit Epoch:12 March 1979
Orbit Reference:Geocentric
Orbit Regime:Low Earth
Orbit Periapsis:189 km
Orbit Apoapsis:256 km
Orbit Inclination:51.66°
Orbit Period:88.8 minutes
Apsis:gee
Cargo Mass:2500 kg
Programme:Progress (spacecraft)
Previous Mission:Progress 4
Next Mission:Progress 6

Progress 5, was a Soviet unmanned Progress cargo spacecraft which was launched in 1979 to resupply the Salyut 6 space station. Served as a receptacle for contaminated fuel from the damaged Salyut 6 propulsion system.

Spacecraft

Progress 5 was a Progress 7K-TG spacecraft. The fifth of forty three to be launched, it had the serial number 104.[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 5 launched on 12 March 1979 from the Baikonur Cosmodrome in the Kazakh Soviet Socialist Republic. It used a Soyuz-U rocket.[7]

Docking

Progress 5 docked with Salyut 6 on 14 March 1979 at 07:19:21 UTC.[8]

Decay

It remained in orbit until 5 April 1979, when it was deorbited. The deorbit burn occurred at 01:04 UTC.

See also

Notes and References

  1. Web site: Launchlog. Jonathan's Space Report. 23 December 2017.
  2. Web site: Cargo spacecraft "Progress-5". Manned Astronautics figures and facts . https://web.archive.org/web/20070910184432/http://space.kursknet.ru/cosmos/english/cargoes/pr5.sht. 10 September 2007.
  3. Web site: Progress 5. NASA. 23 December 2017.
  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. 23 December 2017.
  8. Web site: Salyut 6. https://web.archive.org/web/20161210174048/http://www.astronautix.com/s/salyut6.html. dead. 10 December 2016. Astronautix. 23 December 2017.