| 词条 | Mars 1M No.2 |
| 释义 |
| name = 1M No.2 | image = Mars 1M.jpg | image_caption = A Mars 1M spacecraft | mission_type = Mars flyby | operator = | mission_duration = Failed to orbit | suborbital_apogee = | spacecraft_type = Mars 1M | manufacturer = OKB-1 | launch_mass = {{convert|650|kg}} | dimensions = | power = | instruments = | launch_date = {{start-date|14 October 1960, 13:51:03|timezone=yes}} UTC | launch_rocket = Molniya | launch_site = Baikonur 1/5 }}Mars 1M No.2, designated Mars 1960B by NASA analysts and dubbed Marsnik 2 by the Western media, was a spacecraft launched as part of the Soviet Union's Mars programme, which was lost in a launch failure in 1960.[1] 1M No.2, which was intended to explore Mars from flyby trajectory, was destroyed after its Molniya carrier rocket failed to achieve orbit.[2][3] LaunchMars 1M No.2 was the second Mars 1M spacecraft to be launched, lifting off four days after its sister craft, Mars 1M No.1, had been lost during the Molniya 8K78 rocket's maiden flight. 1M No.2 was carried by another Molniya, which had the serial number L1-5M. The launch took place from Site 1/5 at the Baikonur Cosmodrome, with liftoff occurring at 13:51:03 UTC on 14 October 1960.[4] During preparations for the launch, an oxidiser leak in the second stage caused liquid oxygen, at cryogenic temperature, to spill around the engine's fuel inlet valve. This froze the stage's RP-1 propellant, leaving the engine unable to ignite. As a result, the spacecraft failed to achieve Earth orbit.[5] Scientific InstrumentsThe spacecraft carried three scientific instruments in order to investigate Mars[6]. They are as follows
See also
References{{Portal|Spaceflight|Mars}}1. ^{{cite web|url=http://russianspaceweb.com/spacecraft_planetary_mars.html|title=Russia's unmanned missions to Mars|work=RussianSpaceWeb|first=Anatoly|last=Zak|accessdate=26 October 2013}} {{Mars programme}}{{Orbital launches in 1960}}{{Mars spacecraft}}{{USSR-spacecraft-stub}}2. ^{{cite web|url=http://space.skyrocket.de/doc_sdat/mars-1m.htm|title=Mars 1M|first=Gunter|last=Krebs|work=Gunter's Space Page|accessdate=26 October 2013}} 3. ^{{cite web|url=http://www.astronautix.com/craft/mars1m.htm|title=Mars 1M|first=Mark|last=Wade|work=Encyclopedia Astronautica|accessdate=26 October 2013}} 4. ^{{cite web|url=http://planet4589.org/space/log/launchlog.txt|title=Launch Log|first=Jonathan|last=McDowelll|work=Jonathan's Space Page|accessdate=26 October 2013}} 5. ^{{cite web|url=http://www.thespacereview.com/article/1709/1|title=The beginnings of planetary exploration|first=Andrew J.|last=LePage|date=11 October 2010|accessdate=26 October 2013}} 6. ^Siddiqi, A. A., & Launius, R. (2002). [https://ntrs.nasa.gov/search.jsp?R=20020052429 Deep Space Chronicle: A Chronology of Deep Space and Planetary Probes 1958-2000]. 4 : 1960 in the Soviet Union|Spacecraft launched in 1960|Satellite launch failures|Mars program |
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