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{{Short description|Uncrewed test flight of the Voskhod spacecraft}}
{{no epoch}}
{{Use British English|date=March 2020}}
{{Use dmy dates|date=March 2020}}
{{Infobox spaceflight
| name = Kosmos 47
Line 5 ⟶ 7:
| image_caption =
 
| mission_type = TestOrbital test flight
| operator = [[OKB-1]]
| website =
| COSPAR_ID = 1964-062A
| SATCAT = 891
| mission_duration = 1 day,{{time_interval|6 18 minutesOct 1964 07:12|7 Oct 1964 07:30|show=dhm}}
| spacecraft = [[Voskhod (spacecraft)|Voskhod-3KV]] No.2
 
| spacecraft manufacturer = [[Voskhod (spacecraft)#Vostok 3KV .281964.29|VostokOKB-3KV1]] No.2
| manufacturer = [[S.P. Korolev Rocket and Space Corporation Energia|OKB-1]]
| dry_mass =
| launch_mass = {{convert|5320| kg}}<ref>https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1964-062A - 27 February 2020</ref>
| power =
 
| launch_date = {{start-date|6 October 1964, 07:12|timezone=yes}}&nbsp;UTC:00 GMT
| launch_rocket = [[Voskhod (rocket)|Voskhod]] 11A57
| launch_site = [[Baikonur Cosmodrome|Baikonur]] [[BaikonurGagarin's Cosmodrome Site 1Start|1/5]]
| launch_contractor = [[OKB-1]]
| landing_date = {{end-date|7 October 1964, 07:30|timezone=yes}}&nbsp;UTC GMT
| landing_site =
 
| orbit_epoch = 6 October 1964
| orbit_reference = [[geocentric orbit|Geocentric]]<ref>https://nssdc.gsfc.nasa.gov/nmc/spacecraft/displayTrajectory.action?id=1964-062A - 27 February 2020</ref>
| orbit_regime = [[Low Earth orbit|Low Earth]]
| orbit_periapsis = {{convert|174| km|mi}}
| orbit_apoapsis = {{convert|383| km|mi}}
| orbit_inclination = 64.80&nbsp;degrees8°
| orbit_period = 90.0&nbsp; minutes
| apsis = gee
 
| programme = '''[[Voskhod programme]]'''
| previous_mission =
| next_mission = [[Voskhod 1]]
| programme2 = '''[[List of Kosmos satellites (1–250)|Kosmos (satellites)]]'''
| previous_mission2 = [[Kosmos 46]]
| next_mission2 = [[Kosmos 48]]
}}
'''Kosmos 47''' ({{lang-langx|ru|Космос 47}} meaning ''Cosmos 47'') is the designation of an unmanneduncrewed test- flight of a prototype Soviet [[Voskhod (spacecraft)|Voskhod spacecraft]],<ref name=nssdc>{{cite web|url=http://nssdc.gsfc.nasa.gov/database/MasterCatalog?sc=1964-062A|title=NSSDC Master Catalog: Cosmos 47|publisher=[[National Space Science Data Center]] - NASA|accessdate=2011-02-21}}</ref> the first multiple-occupant spacecraft. Launched on the 6 October 1964, the successful flight paved the way for the first mannedcrewed mission, [[Voskhod 1]], which occurred just 6 days later on the 12 October 1964.
 
The spacecraft was one of many designated under the [[Kosmos (satellite)|Kosmos]] system, which is applied to a wide variety of spacecraft of different designs and functions including test flights of mannedcrewed vehicles.
 
==Launch==
The launch took place on 6 October at 07:12 [[UTC]]GMT<ref name=jspll>{{cite web|url=http://planet4589.org/space/log/launchlog.txt|title=Launch Log|last=McDowell|first=Jonathan|publisher=Jonathan's Space Page |accessdate=2011-02-21}}</ref> from [[Gagarin's Start]], (LC1)Site 1/5 at [[Baikonur Cosmodrome]] on board a [[Voskhod (rocket)|Voskhod rocket]] s/n R15000-02. TestingKosmos 47 was operated in a [[low Earth orbit]], it had a [[apsis|perigee]] of {{convert|174|km|mi}}, an [[apsis|apogee]] of {{convert|383|km|mi}}, an [[orbital inclination|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.<ref name=jspsc>{{cite web|url=http://www.planet4589.org/space/log/satcat.txt|title=Satellite Catalog|last=McDowell|first=Jonathan|publisher=Jonathan's Space Page |accessdate=2011-02-21}}</ref> at around 07:30 UTC.
 
==Spacecraft==
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 [[Project Gemini|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 original 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==
{{Portal|Spaceflight}}
* [[1964 in spaceflight]]
 
==References==
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==External links==
* [httphttps://www.zarya.info/Diaries/Voskhod1Voskhod/SummaryVoskhod.htmphp Voskhod - A Summary]
 
{{Orbital launches in 1964}}
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