Luna 5 Contents Launch Failure See also References External links Navigation menu1965-036A8°N 23°W / 8°N 23°W / 8; -2331°S 8°W / 31°S 8°W / -31; -88°N 23°W / 8°N 23°W / 8; -23"Luna 5"ArchivedZarya - Luna programme chronologyee

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LQ11 quadrangleLQ26 quadrangleLuna programSpacecraft launched in 19651965 in the Soviet UnionSpacecraft that impacted the MoonMay 1965 events


SovietMoonLuna programmeMolniya-MSite 1/5Baikonur CosmodromeBlok Llow Earthparking orbitE-6 No.6No.5Mare NubiumCopernicus





























Luna 5
Mission typeLunar lander
OperatorSoviet Union
COSPAR ID1965-036A
SATCAT no.
01366Edit this on Wikidata
Mission duration3 days (launch to impact)

Spacecraft properties
ManufacturerOKB-1
Launch mass1,474 kilograms (3,250 lb)[1]

Start of mission
Launch date9 May 1965, 07:49:37 (1965-05-09UTC07:49:37Z) UTC
Rocket
Molniya-M 8K78M
Launch site
Baikonur 1/5


Lunar impact (failed landing)
Impact date12 May 1965, 19:10 (1965-05-12UTC19:11Z) UTC[1]
Impact site
8°N 23°W / 8°N 23°W / 8; -23[1]

 

Luna 5, or E-6 No.10, was an unmanned Soviet spacecraft intended to land on the Moon as part of the Luna programme. It was intended to become the first spacecraft to achieve a soft landing on the Moon, however its retrorockets failed, and the spacecraft impacted the lunar surface.




Contents





  • 1 Launch


  • 2 Failure


  • 3 See also


  • 4 References


  • 5 External links




Launch


Luna 5 was launched by a Molniya-M carrier rocket, flying from Site 1/5 at the Baikonur Cosmodrome. Liftoff occurred at 07:49:37 UTC on 9 May 1965. The spacecraft and Blok L upper stage entered a low Earth parking orbit, before the Blok L fired to propel Luna 5 towards the Moon.


Luna 5 became the first Soviet probe to be successfully launched towards the Moon in two years. Between it and the previous mission to be launched successfully, Luna 4, there were three launch failures: E-6 No.6 and No.5 in 1964 and Kosmos 60 in 1965.



Failure




Firstly announced location of the Luna 5 impact (lower right), in relation to other lunar probes and landing sites.


Following the mid-course correction on 10 May, the spacecraft began spinning around its main axis due to a problem in a flotation gyroscope in the I-100 guidance system unit. A subsequent attempt to fire the main engine failed because of ground control error, and the engine never fired. As a result of these failures, the soft landing attempt failed, and Luna 5 impacted the Moon. The place of impact was firstly announced as 31°S 8°W / 31°S 8°W / -31; -8 (coast of Mare Nubium), but later it was estimated as 8°N 23°W / 8°N 23°W / 8; -23 (near crater Copernicus).[1] It was the second Soviet spacecraft to reach the surface of the Moon, following Luna 2 in 1959. An observatory[who?] noted a 220-by-80-kilometre (137 by 50 mi) plume produced by the impact, which was visible for ten minutes.[citation needed]



See also



  • List of artificial objects on the Moon


References




  1. ^ abcd "Luna 5". NASA Space Science Data Coordinated Archive. 2014-08-26. Archived from the original on 2015-06-03. Retrieved 2015-04-13..mw-parser-output cite.citationfont-style:inherit.mw-parser-output .citation qquotes:"""""""'""'".mw-parser-output .citation .cs1-lock-free abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .citation .cs1-lock-subscription abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registrationcolor:#555.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration spanborder-bottom:1px dotted;cursor:help.mw-parser-output .cs1-ws-icon abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/12px-Wikisource-logo.svg.png")no-repeat;background-position:right .1em center.mw-parser-output code.cs1-codecolor:inherit;background:inherit;border:inherit;padding:inherit.mw-parser-output .cs1-hidden-errordisplay:none;font-size:100%.mw-parser-output .cs1-visible-errorfont-size:100%.mw-parser-output .cs1-maintdisplay:none;color:#33aa33;margin-left:0.3em.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-formatfont-size:95%.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-leftpadding-left:0.2em.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-rightpadding-right:0.2em




External links


  • Zarya - Luna programme chronology








1965 in the Soviet Union, LQ11 quadrangle, LQ26 quadrangle, Luna program, May 1965 events, Spacecraft launched in 1965, Spacecraft that impacted the MoonUncategorized
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