Progress 21
 A Progress 7K-TG spacecraft | |
| Mission type | Salyut 7resupply |
|---|---|
| COSPAR ID | 1984-042A |
| SATCATno. | 14961[1] |
| Spacecraft properties | |
| Spacecraft | Progress(No.116) |
| Spacecraft type | Progress 7K-TG[2] |
| Manufacturer | NPO Energia |
| Start of mission | |
| Launch date | 7 May 1984, 22:47:15 UTC[1] |
| Rocket | Soyuz-U[2] |
| Launch site | Baikonur,Site 31/6 |
| End of mission | |
| Disposal | Deorbited |
| Decay date | 26 May 1984, 15:00:30 UTC[3] |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Low Earth |
| Perigee altitude | 187 km[3] |
| Apogee altitude | 246 km[3] |
| Inclination | 51.6°[3] |
| Period | 88.8 minutes[3] |
| Epoch | 26 May 1984 |
| Docking withSalyut 7 | |
| Docking port | Aft[3] |
| Docking date | 10 May 1984, 00:10 UTC |
| Undocking date | 26 May 1984, 09:41 UTC |
Progress 21(Russian:Прогресс 21) was aSovietuncrewedProgresscargo spacecraft, which was launched in May 1984 to resupply theSalyut 7space station.
Launch
[edit]Progress 21 launched on 7 May 1984 from theBaikonur Cosmodromein theKazakh SSR.It used aSoyuz-Urocket.[2][4]
Docking
[edit]Progress 21 docked with the aft port of Salyut 7 on 10 May 1984 at 00:10 UTC, and was undocked on 26 May 1984 at 09:41 UTC.[3][5]
Decay
[edit]It remained in orbit until 26 May 1984, when it was deorbited. The deorbit burn occurred at 15:00:30 UTC, with the mission ending at around 15:45 UTC.[3][5]
See also
[edit]
- 1984 in spaceflight
- List of Progress missions
- List of uncrewed spaceflights to Salyut space stations
References
[edit]- ^ab"Launchlog".Jonathan's Space Report.Retrieved5 December2020.
- ^abc"Progress 1 - 42 (11F615A15, 7K-TG)".Gunter's Space Page.Retrieved5 December2020.
- ^abcdefgh"Cargo spacecraft" Progress 21 "".Manned Astronautics figures and facts.Archived fromthe originalon 13 October 2007.
- ^"Progress 21".NASA.Retrieved5 December2020.
This article incorporates text from this source, which is in thepublic domain.
- ^ab"Salyut 7".Astronautix.Archived fromthe originalon 11 December 2016.Retrieved5 December2020.
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