| 词条 | Kosmos 25 |
| 释义 |
| name = Kosmos 25 | mission_type = Radar target Technology | operator = | COSPAR_ID = 1964-010A | SATCAT = | mission_duration = | spacecraft_type = DS-P1 | manufacturer = Yuzhnoye | launch_mass = {{convert|355|kg}} | launch_date = {{start-date|27 February 1964, 13:26|timezone=yes}} UTC | launch_rocket = Kosmos-2I 63S1 | launch_site = Kapustin Yar Mayak-2 | decay_date = {{end-date|21 November 1964}} | orbit_epoch = | orbit_reference = Geocentric | orbit_regime = Low Earth | orbit_periapsis = {{convert|260|km}} | orbit_apoapsis = {{convert|495|km}} | orbit_inclination = 49.1 degrees | orbit_period = 92.1 minutes | apsis = gee }}Kosmos 25 ({{lang-ru|Космос 25}} meaning Cosmos 25), also known as DS-P1 No.4 was a prototype radar target satellite for anti-ballistic missile tests, which was launched by the Soviet Union in 1964 as part of the Dnepropetrovsk Sputnik programme. Its primary mission was to demonstrate the necessary technologies for radar tracking of spacecraft, which would allow future satellites to function as targets.[1] It was launched aboard a Kosmos-2I 63S1 rocket,[2] from pad 2 of the Mayak Launch Complex at Kapustin Yar. The launch occurred at 13:26 UTC on 27 February 1964.[3] Kosmos 25 was placed into a low Earth orbit with a perigee of {{convert|260|km}}, an apogee of {{convert|495|km}}, 49.1 degrees of inclination, and an orbital period of 92.1 minutes.[1] It decayed from orbit on 21 November 1964.[4] Kosmos 25 was a prototype DS-P1 satellite, the last of four to be launched.[1] Of these, it was the third to successfully reach orbit after Kosmos 6 and Kosmos 19.[5] It was succeeded by the first operational DS-P1 satellite, Kosmos 36. See also{{Portal|Spaceflight}}
References1. ^1 2 {{cite web|url=http://www.astronautix.com/craft/dsp1.htm|title=DS-P1|last=Wade|first=Mark|publisher=Encyclopedia Astronautica|accessdate=26 May 2009|deadurl=yes|archiveurl=https://www.webcitation.org/692kB4uJE?url=http://www.astronautix.com/craft/dsp1.htm|archivedate=10 July 2012|df=dmy-all}} {{Dnepropetrovsk Sputnik}}{{Orbital launches in 1964}}{{Use British English|date=January 2014}}{{Use dmy dates|date=January 2014}}{{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=26 May 2009}} 3. ^{{cite web|url=http://www.astronautix.com/lvs/kosmos2.htm|title=Kosmos 2|last=Wade|first=Mark|publisher=Encyclopedia Astronautica|accessdate=26 May 2009|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://www.planet4589.org/space/log/satcat.txt|title=Satellite Catalog|last=McDowell|first=Jonathan|publisher=Jonathan's Space Page|accessdate=26 May 2009}} 5. ^{{cite web|url=http://www.astronautix.com/project/ds.htm|title=DS|last=Wade|first=Mark|publisher=Encyclopedia Astronautica|accessdate=26 May 2009|deadurl=yes|archiveurl=https://web.archive.org/web/20090331210314/http://www.astronautix.com/project/ds.htm|archivedate=31 March 2009|df=dmy-all}} 3 : Spacecraft launched in 1964|Kosmos satellites|1964 in the Soviet Union |
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