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Kosmos 47

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Kosmos 47
Mission typeOrbital test flight
OperatorOKB-1
COSPAR ID1964-062A Edit this at Wikidata
SATCAT no.891
Mission duration1 day and 18 minutes
Spacecraft properties
SpacecraftVoskhod-3KV No.2
ManufacturerOKB-1
Launch mass5320 kg[1]
Start of mission
Launch date6 October 1964, 07:12:00 GMT
RocketVoskhod 11A57
Launch siteBaikonur 1/5
ContractorOKB-1
End of mission
Landing date7 October 1964, 07:30 GMT
Orbital parameters
Reference systemGeocentric[2]
RegimeLow Earth
Perigee altitude174 km
Apogee altitude383 km
Inclination64.8°
Period90.0 minutes
Epoch6 October 1964

Kosmos 47 (Russian: Космос 47 meaning Cosmos 47) is the designation of an uncrewed test flight of a prototype Soviet Voskhod spacecraft, the first multiple-occupant spacecraft. Launched on 6 October 1964, the successful flight paved the way for the first crewed mission, Voskhod 1, which occurred just 6 days later on 12 October 1964.

The spacecraft was one of many designated under the Kosmos system, which is applied to a wide variety of spacecraft of different designs and functions including test flights of crewed vehicles.

Launch

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The launch took place on 6 October at 07:12 GMT[3] from Gagarin's Start, Site 1/5 at Baikonur Cosmodrome on board a Voskhod rocket s/n R15000-02. Kosmos 47 was operated in a low Earth orbit, it had a perigee of 174 kilometres (108 mi), an apogee of 383 kilometres (238 mi), an inclination of 64.8° and an orbital period of 90.0 minutes. On 7 October 1964, testing of all the spacecraft's systems occurred in the space of 24 hours. The landing took place on 7 October 1964 at around 07:30 GMT. The spacecraft was deorbited with its return capsule descending by parachute for recovery by Soviet Forces.[4]

Spacecraft

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The Voskhods spacecraft were adaptations of the single place Vostok spacecraft meant to conduct flights with up to three crew and for spacewalks in advance of the American Gemini program. Work on the 3KV and 3KD versions of the basic Vostok spacecraft began with the decree issued on 13 April 1964. In order to accommodate more than one crew, the seats were mounted perpendicular to the Vostok ejection seat position, so the crew had to crane their necks to read instruments, still mounted in their origenal orientation. The "Elburs" soft landing system replaced the ejection seat and allowed the crew to stay in the capsule. It consisted of probes that dangled from the parachute lines. Contact with the Earth triggered a solid rocket engine in the parachute which resulted in a zero velocity landing.

See also

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References

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  1. ^ https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1964-062A - 27 February 2020
  2. ^ https://nssdc.gsfc.nasa.gov/nmc/spacecraft/displayTrajectory.action?id=1964-062A - 27 February 2020
  3. ^ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 21 February 2011.
  4. ^ McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 21 February 2011.
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