Progress M-7

Progress M-7
Mission typeMir resupply
COSPAR ID1991-020A Edit this at Wikidata
SATCAT no.21188Edit this on Wikidata
Spacecraft properties
Spacecraft typeProgress-M 11F615A55
ManufacturerNPO Energia
Launch mass7,250 kilograms (15,980 lb)
Start of mission
Launch date19 March 1991, 13:05:15 (1991-03-19UTC13:05:15Z) UTC
RocketSoyuz-U2
Launch siteBaikonur Site 1/5
End of mission
DisposalDeorbited
Decay date7 May 1991 (1991-05-08)
Orbital parameters
Reference systemGeocentric
RegimeLow Earth
Perigee altitude365 kilometres (227 mi)[1]
Apogee altitude388 kilometres (241 mi)[1]
Inclination51.6 degrees
Docking with Mir
Docking portCore Forward
Docking date28 March 1991, 12:02:28 UTC
Undocking date6 May 1991, 22:59:36 UTC
Time docked39 days
 

Progress M-7 (Russian: Прогресс М-7) was a Soviet uncrewed cargo spacecraft which was launched in 1991 to resupply the Mir space station.[2] The twenty-fifth of sixty four Progress spacecraft to visit Mir, it used the Progress-M 11F615A55 configuration,[3] and had the serial number 208.[4] It carried supplies including food, water and oxygen for the EO-8 crew aboard Mir, as well as equipment for conducting scientific research, and fuel for adjusting the station's orbit and performing manoeuvres. It also carried the second VBK-Raduga capsule, intended to return equipment and experiment results to Earth.

Progress M-7 was launched at 13:05:15 GMT on 19 March 1991, atop a Soyuz-U2 carrier rocket flying from Site 1/5 at the Baikonur Cosmodrome.[4] It took three attempts to dock with Mir; the first of which occurred at 14:28 GMT on 21 March, and resulted in Progress M-7 approaching to within 500 metres (1,600 ft) of Mir, before the attempt was aborted. During a second attempt on 23 March, approach was aborted when the spacecraft was 50 metres (160 ft) from Mir; however, it passed within 5 metres (16 ft) before moving away to a holding position whilst the problem was investigated.[5] The first two attempts had used the aft docking port of the Kvant-1 module; however, it was decided to use the forward port of the core module for the next one. At 10:12:00 GMT on 26 March, the Soyuz TM-11 spacecraft which had been occupying this port undocked from it, before flying around the station and docking with Kvant-1 at 10:58:59.[6] Progress M-7 successfully docked with Mir at 12:02:28 GMT on 28 March.[7][6]

During the 39 days for which Progress M-7 was docked, Mir was in an orbit of around 365 by 388 kilometres (197 by 210 nmi), inclined at 51.6 degrees.[1] Progress M-7 undocked from Mir at 22:59:36 GMT on 6 May, and was deorbited at 16:24:00 the next day, to a destructive reentry over the Pacific Ocean.[1][6] Its Raduga capsule, which had been deployed following the deorbit burn, came down in the Russian Soviet Federative Socialist Republic at around 17:20 GMT; however, efforts to recover it were unsuccessful.[6]

See also

  • Spaceflight portal

References

  1. ^ a b c d McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 2009-08-28.
  2. ^ "Progress M-7". NSSDC Master Catalog. US National Space Science Data Center. Retrieved 2009-08-28.
  3. ^ Krebs, Gunter. "Progress-M 1 - 13, 15 - 37, 39 - 67 (11F615A55, 7KTGM)". Gunter's Space Page. Retrieved 2009-08-28.
  4. ^ a b McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 2009-08-28.
  5. ^ Wade, Mark. "Mir EO-8". Encyclopedia Astronautica. Archived from the original on 2012-10-05. Retrieved 2009-08-28.
  6. ^ a b c d Anikeev, Alexander. "Cargo spacecraft "Progress M-7"". Manned Astronautics - Figures & Facts. Archived from the original on 2007-10-09. Retrieved 2009-08-28.
  7. ^ Wade, Mark. "Progress M". Encyclopedia Astronautica. Archived from the original on 2009-07-10. Retrieved 2009-08-28.
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Orbital launches in 1991
January
  • NATO 4A
  • Progress M-6
  • Italsat 1, Eutelsat-2 F2
  • Kosmos 2121
  • Kosmos 2122
  • Informator No.1
February
  • Kosmos 2123
  • Kosmos 2124
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  • Kosmos 2133
  • Kosmos 2134
  • Molniya 1-80
  • Kosmos 2135
  • Gran' No.38L
March
  • Astra 1B, Meteosat 5
  • Kosmos 2136
  • USA-69
  • Inmarsat-2 F2
  • Nadezhda No.409
  • Progress M-7
  • Kosmos 2137
  • Molniya-3 No.55
  • Kosmos 2138
  • Almaz 1
April
May
June
  • Okean-O1 No.6
  • STS-40
  • Kosmos 2150
  • Kosmos 2151
  • Molniya 1-81
  • Unnamed
  • Resurs-F1 No.52
  • REX
July
August
September
October
November
  • USA-72, USA-74, USA-76, USA-77
  • Kosmos 2165, Kosmos 2166, Kosmos 2167, Kosmos 2168, Kosmos 2169, Kosmos 2170
  • Kosmos 2171
  • Kosmos 2172
  • STS-44 (USA-75)
  • Kosmos 2173
  • USA-73
December
  • Eutelsat-2 F3
  • Telecom 2A, Inmarsat-2 F3
  • Kosmos 2174
  • Interkosmos 25, Magion 3
  • Gran' No.39L
  • Zhongxing-4
Launches are separated by dots ( • ), payloads by commas ( , ), multiple names for the same satellite by slashes ( / ).
Crewed flights are underlined. Launch failures are marked with the † sign. Payloads deployed from other spacecraft are (enclosed in parentheses).