| 词条 | Luna E-6 No.3 |
| 释义 |
| name = Luna E-6 No.3 | image = | image_caption = | mission_type = Lunar lander | operator = | mission_duration = Failed to orbit | spacecraft_type = E-6 | manufacturer = OKB-1 | dry_mass = | launch_mass = {{convert|1422|kg}} | power = | launch_date = {{start-date|3 February 1963, 09:29:14|timezone=yes}} UTC | launch_rocket = Molniya-L 8K78/E6 {{nowrap|s/n G103-10}} | launch_site = Baikonur 1/5 }} Luna E-6 No.3, also identified as No.2 and sometimes by NASA as Luna 1963B,[1] was a Soviet spacecraft which was lost in a launch failure in 1963. It was a {{convert|1422|kg|adj=on}} Luna E-6 spacecraft,[2] the second of twelve to be launched,[3] and the second consecutive launch failure.[3] It was intended to be the first spacecraft to perform a soft landing on the Moon, a goal which would eventually be accomplished by the final E-6 spacecraft, Luna 9. Luna E-6 No.3 was launched at 09:26:14 UTC on 3 February 1963, atop a Molniya-L 8K78L carrier rocket,[3] flying from Site 1/5 at the Baikonur Cosmodrome.[4] A torque sensor in the gyroscope used to control the pitch of the upper stage malfunctioned, resulting in control of the rocket being lost.[5] The spacecraft failed to achieve orbit, and reentered the atmosphere over the Pacific Ocean.[5] Prior to the release of information about its mission, NASA correctly identified that it had been an attempt to land a spacecraft on the Moon. However, they believed the launch had occurred on 2 February.[1] References1. ^1 {{cite web |url=http://nssdc.gsfc.nasa.gov/planetary/tent_launch.html |title=Tentatively Identified Missions and Launch Failures |publisher=NASA NSSDC|first=David R.|last=Williams|accessdate=30 July 2010|date=6 January 2005}} 2. ^{{cite web|url=http://www.astronautix.com/craft/lunae6.htm|title=Luna E-6|last=Wade|first=Mark|publisher=Encyclopedia Astronautica|accessdate=26 July 2010}} 3. ^1 2 {{cite web|url=http://space.skyrocket.de/doc_sdat/luna_e6.htm|title=Luna E-6|last=Krebs|first=Gunter|publisher=Gunter's Space Page|accessdate=26 July 2010}} 4. ^{{cite web|url=http://planet4589.org/space/log/launchlog.txt|title=Launch Log|last=McDowell|first=Jonathan|publisher=Jonathan's Space Page|accessdate=26 July 2010}} 5. ^1 {{cite web|url=http://www.astronautix.com/lvs/soyuz.htm |title=Soyuz |last=Wade |first=Mark |publisher=Encyclopedia Astronautica |accessdate=26 July 2010 |deadurl=yes |archiveurl=https://www.webcitation.org/5mqiUXlX2?url=http://www.astronautix.com/lvs/soyuz.htm |archivedate=17 January 2010 |df= }} External links{{Portal|Spaceflight}}
2 : Luna program|Spacecraft launched in 1963 |
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