Progress 11
 A Progress 7K-TG spacecraft | |
| Mission type | Salyut 6 resupply |
|---|---|
| COSPAR ID | 1980-079A |
| SATCAT no. | 11993[1] |
| Spacecraft properties | |
| Spacecraft | Progress (No.111) |
| Spacecraft type | Progress 7K-TG[2] |
| Manufacturer | NPO Energia |
| Start of mission | |
| Launch date | 28 September 1980, 15:09:55 UTC[1] |
| Rocket | Soyuz-U[2] |
| Launch site | Baikonur, Site 1/5 |
| End of mission | |
| Disposal | Deorbited |
| Decay date | 11 December 1980, 14:00 UTC[3] |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Low Earth |
| Perigee altitude | 188 km[3] |
| Apogee altitude | 241 km[3] |
| Inclination | 51.6°[3] |
| Period | 88.7 minutes[3] |
| Epoch | 28 September 1980 |
| Docking with Salyut 6 | |
| Docking port | Aft[3] |
| Docking date | 30 September 1980, 17:03 UTC |
| Undocking date | 9 December 1980, 10:23 UTC |
Progress 11 (Russian: Прогресс 11) was a Soviet unmanned Progress cargo spacecraft, which was launched in September 1980 to resupply the Salyut 6 space station.
Spacecraft
Progress 11 was a Progress 7K-TG spacecraft. The eleventh of forty three to be launched, it had the serial number 111.[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.[6]
The Progress spacecraft had a dry mass of 6,520 kilograms (14,370 lb), which increased to around 7,020 kilograms (15,480 lb) when fully fuelled. It measured 7.48 metres (24.5 ft) in length, and 2.72 metres (8 ft 11 in) in diameter. Each spacecraft could accommodate up to 2,500 kilograms (5,500 lb) 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 11 launched on 28 September 1980 from the Baikonur Cosmodrome in the Kazakh SSR. It used a Soyuz-U rocket.[2][7]
Docking
Progress 11 docked with the aft port of Salyut 6 on 30 September 1980 at 17:03 UTC, and was undocked on 9 December 1980 at 10:23 UTC.[3][8]
Decay
It remained in orbit until 11 December 1980, when it was deorbited. The deorbit burn occurred at 14:00 UTC.[3][8]
See also
- 1980 in spaceflight
- List of Progress missions
- List of uncrewed spaceflights to Salyut space stations
References
- ^ a b "Launchlog". Jonathan's Space Report. Retrieved 4 December 2020.
- ^ a b c "Progress 1 - 42 (11F615A15, 7K-TG)". Gunter's Space Page. Retrieved 4 December 2020.
- ^ a b c d e f g h "Cargo spacecraft "Progress 11"". Manned Astronautics figures and facts. Archived from the original on 14 October 2007.
- ^ Krebs, Gunter. "Progress 1 - 42 (11F615A15, 7K-TG)". Gunter's Space Page. Retrieved 26 November 2010.
- ^ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 26 November 2010.
- ^ a b Hall, Rex D.; Shayler, David J. (2003). Soyuz: A Universal Spacecraft. Springer-Praxis. pp. 239–250. ISBN 1-85233-657-9.
- ^ "Progress 11". NASA. Retrieved 4 December 2020.
This article incorporates text from this source, which is in the public domain.
- ^ a b "Salyut 6". Astronautix. Archived from the original on 10 December 2016. Retrieved 4 December 2020.
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