| 词条 | Kosmos 634 |
| 释义 |
| name = Kosmos 634 | mission_type = ABM radar target | operator = | COSPAR_ID = 1974-012A | SATCAT = | mission_duration = | spacecraft_type = DS-P1-Yu | manufacturer = Yuzhnoye | launch_mass = {{convert|400|kg}} | launch_date = {{start-date|5 March 1974, 16:05|timezone=yes}} UTC | launch_rocket = Kosmos-2I 63SM | launch_site = Plesetsk 133/1 | decay_date = {{end-date|9 October 1974}} | orbit_epoch = | orbit_reference = Geocentric | orbit_regime = Low Earth | orbit_periapsis = {{convert|266|km}} | orbit_apoapsis = {{convert|464|km}} | orbit_inclination = 70.9 degrees | orbit_period = 91.9 minutes | apsis = gee }}Kosmos 634 ({{lang-ru|Космос 634}} meaning Cosmos 634), also known as DS-P1-Yu No.67, was a Soviet satellite which was launched in 1974 as part of the Dnepropetrovsk Sputnik programme. It was a {{convert|400|kg|adj=on}} spacecraft, which was built by the Yuzhnoye Design Bureau, and was used as a radar calibration target for anti-ballistic missile tests.[1] The launch of Kosmos 634 took place from Site 133/1 at the Plesetsk Cosmodrome,[2] and used a Kosmos-2I 63SM carrier rocket. It occurred at 16:05 UTC on 5 March 1974, and resulted in the satellite successfully reaching low Earth orbit.[3] Upon reaching orbit, the satellite was assigned its Kosmos designation, and received the International Designator 1974-012A.[4] The North American Aerospace Defense Command assigned it the catalogue number 07211. Kosmos 634 was the sixty-ninth of seventy nine DS-P1-Yu satellites to be launched,[1] and the sixty-third of seventy two to successfully reach orbit.[5] It was operated in an orbit with a perigee of {{convert|266|km}}, an apogee of {{convert|464|km}}, 70.9 degrees of inclination, and an orbital period of 91.9 minutes.[7] It remained in orbit until it decayed and reentered the atmosphere on 9 October 1974.[6] See also{{Portal|Spaceflight}}
References1. ^1 {{cite web|url=http://www.astronautix.com/craft/dsp1yu.htm|title=DS-P1-Yu|last=Wade|first=Mark|publisher=Encyclopedia Astronautica|accessdate=2009-09-01|deadurl=yes|archiveurl=https://www.webcitation.org/67kl9Q2Et?url=http://www.astronautix.com/craft/dsp1yu.htm|archivedate=18 May 2012|df=dmy-all}} {{Dnepropetrovsk Sputnik}}{{Orbital launches in 1974}}{{Use British English|date=January 2014}}{{Use dmy dates|date=January 2014}}{{DEFAULTSORT:Kosmos 0634}}{{USSR-spacecraft-stub}}2. ^{{cite web|url=http://planet4589.org/space/log/launchlog.txt|title=Launch Log|last=McDowell|first=Jonathan|publisher=Jonathan's Space Page|accessdate=2009-09-01}} 3. ^{{cite web|url=http://www.astronautix.com/lvs/kosmos2.htm|title=Kosmos 2|last=Wade|first=Mark|publisher=Encyclopedia Astronautica|accessdate=2009-09-01|deadurl=yes|archiveurl=https://www.webcitation.org/690mZkz9v?url=http://www.astronautix.com/lvs/kosmos2.htm|archivedate=8 July 2012|df=dmy-all}} 4. ^{{cite web|url=http://nssdc.gsfc.nasa.gov/nmc/masterCatalog.do?sc=1974-012A|title=Cosmos 634|publisher=US National Space Science Data Center|work=NSSDC Master Catalog|accessdate=2009-09-01}} 5. ^{{cite web|url=http://space.skyrocket.de/doc_sdat/ds-p1-yu.htm|title=DS-P1-Yu (11F618)|first=Gunter|last=Krebs|publisher=Gunter's Space Page|accessdate=2009-09-01}} 6. ^1 {{cite web|url=http://www.planet4589.org/space/log/satcat.txt|title=Satellite Catalog|last=McDowell|first=Jonathan|publisher=Jonathan's Space Page|accessdate=2009-09-01}} 3 : 1974 in spaceflight|Kosmos satellites|Spacecraft launched in 1974 |
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