Kosmos 936
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| Names | Bion 4 Biocosmos 4 |
|---|---|
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| Mission type | Bioscience |
| Operator | Institute of Biomedical Problems |
| COSPAR ID | 1977-074A [1] |
| SATCAT no. | 10172 |
| Mission duration | Template:Time interval |
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| Spacecraft properties | |
| Spacecraft type | Bion |
| Bus | Zenit 12KS |
| Manufacturer | TsSKB |
| Launch mass | Template:Cvt[1] |
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| Start of mission | |
| Launch date | 3 August 1977, 14:01:00 UTC |
| Rocket | Soyuz-U |
| Launch site | Plesetsk 43/3 |
| Contractor | TsSKB |
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| End of mission | |
| Recovered by | Soviet Space Forces |
| Landing date | 22 August 1977, 01:05 UTC |
| Landing site | Lua error: callParserFunction: function "#coordinates" was not found. near Kustanay, Kazakhstan, USSR[2] |
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| Orbital parameters | |
| Reference system | Geocentric[3] |
| Regime | Low Earth orbit |
| Perigee altitude | Template:Cvt |
| Apogee altitude | Template:Cvt |
| Inclination | 62.80° |
| Period | 90.70 min |
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Kosmos 936 or Bion 4 (Бион 4, Космос 936) was a Bion satellite.[4] The mission involved nine countries in a series of biomedical research experiments. The experiments were primarily follow-ups to the Bion 3 (Kosmos 782) flight. Scientists from the Bulgaria, Czechoslovakia, East Germany, France, Hungary, Poland, Romania, the United States and the Soviet Union conducted experiments in physics and biology on the mission.[1]
Spacecraft
The spacecraft was based on the Zenit reconnaissance satellite and launches began in 1973 with primary emphasis on the problems of radiation effects on human beings. Launches in the program included Kosmos 110, 605, 670, 782, plus Nauka modules flown on Zenit-2M reconnaissance satellites. 90 kg of equipment could be contained in the external Nauka module.[1]
Launch
Kosmos 936 was launched on 3 August 1977, at 14:01:00 UTC by a Soyuz-U launch vehicle from Plesetsk Cosmodrome. The mission ended after 19.5 days.[1]
Mission
The mission was to conduct various biological studies, continuing the Bion 3 mission experiments. He had two centrifuges on board to put some specimens in an artificial gravity environment. An attempt was made to differentiate, using rats, between the effects caused by space flight itself from those caused by stress. The effects of flight on muscle and bone, on red cell survival, and on lipid and carbohydrate metabolism were also studied, and an experiment with rats on the effects of space radiation on the retina was conducted.
One of the instruments (without a biological part) studied the physical parameters of the components of space radiation. Fruit flies were used in genetics and aging studies. A group of rats of the Rattus norvegicus species were sent, with an average weight of Template:Cvt at launch and 62 days of age. Twenty of the rats experienced microgravity and the other ten were subjected to the artificial gravity of the centrifuge.
See also
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References
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- ^ a b c d e Page Module:Citation/CS1/styles.css has no content."Display: BION-4 1977-074A". NASA. 14 May 2020. Retrieved 16 January 2021. Public Domain This article incorporates text from this source, which is in the public domain.
- ^ Page Module:Citation/CS1/styles.css has no content."Bion". Archived from the original on 20 August 2002. Retrieved 28 May 2016.
{{cite web}}: CS1 maint: bot: original URL status unknown (link) Encyclopedia Astronautica Retrieved 16 January 2021 - ^ Page Module:Citation/CS1/styles.css has no content."Trajectory: BION-4 1977-074A". NASA. 14 May 2020. Retrieved 16 January 2021. Public Domain This article incorporates text from this source, which is in the public domain.
- ^ Page Module:Citation/CS1/styles.css has no content."Cosmos 936". NASA ARC. 3 August 1977. Archived from the original on 15 February 2013. Retrieved 16 January 2021. Public Domain This article incorporates text from this source, which is in the public domain.
Bibliography
- Kozlov, D. I. (1996), Mashnostroenie, ed., Konstruirovanie avtomaticheskikh kosmicheskikh apparatov, Moscow, ISBN
- Melnik, T. G. (1997), Nauka, ed., Voenno-Kosmicheskiy Sili, Moscow, ISBN
- "Bion' nuzhen lyudyam", Novosti Kosmonavtiki, (6): 35, 1996
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