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- Kosmos_257 abstract "Kosmos 257 (Russian: Космос 257 meaning Cosmos 257), known before launch as DS-P1-Yu No.17, was a Soviet satellite which was used as a radar calibration target for tests of anti-ballistic missiles. It was built by the Yuzhnoye Design Bureau, and launched in 1968 as part of the Dnepropetrovsk Sputnik programme. It had a mass of 325 kilograms (717 lb).Kosmos 257 was launched from Site 133/1 at Plesetsk, atop a Kosmos-2I 63SM carrier rocket. The launch occurred on 3 December 1968 at 14:52:21 UTC, and resulted in Kosmos 257's successful deployment into low Earth orbit. Upon reaching orbit, it was assigned its Kosmos designation, and received the International Designator 1968-107A.Kosmos 257 was operated in an orbit with a perigee of 261 kilometres (162 mi), an apogee of 396 kilometres (246 mi), 70.9 degrees of inclination, and an orbital period of 91.10 minutes. It remained in orbit until it decayed and reentered the atmosphere on 5 March 1969. It was the seventeenth of seventy nine DS-P1-Yu satellites to be launched, and the sixteenth of seventy two to successfully reach orbit.".
- Kosmos_257 cosparId "1968-107A".
- Kosmos_257 wikiPageID "23941118".
- Kosmos_257 wikiPageRevisionID "588851272".
- Kosmos_257 apsis "gee".
- Kosmos_257 cosparId "1968".
- Kosmos_257 decayDate "1969-03-05".
- Kosmos_257 hasPhotoCollection Kosmos_257.
- Kosmos_257 launchDate "--12-03".
- Kosmos_257 launchRocket "Kosmos-2I 63SM".
- Kosmos_257 launchSite Plesetsk_Cosmodrome.
- Kosmos_257 launchSite Plesetsk_Cosmodrome_Site_133.
- Kosmos_257 manufacturer Yuzhnoye_Design_Bureau.
- Kosmos_257 missionType "ABM radar target".
- Kosmos_257 name "Kosmos 257".
- Kosmos_257 orbitInclination "70.9".
- Kosmos_257 orbitPeriod "5466.0".
- Kosmos_257 orbitReference Geocentric_orbit.
- Kosmos_257 orbitRegime Low_Earth_orbit.
- Kosmos_257 spacecraftType DS-P1-Yu.
- Kosmos_257 subject Category:Kosmos_satellites.
- Kosmos_257 subject Category:Spacecraft_launched_in_1968.
- Kosmos_257 type ArtificialSatellite.
- Kosmos_257 type Satellite.
- Kosmos_257 type Thing.
- Kosmos_257 comment "Kosmos 257 (Russian: Космос 257 meaning Cosmos 257), known before launch as DS-P1-Yu No.17, was a Soviet satellite which was used as a radar calibration target for tests of anti-ballistic missiles. It was built by the Yuzhnoye Design Bureau, and launched in 1968 as part of the Dnepropetrovsk Sputnik programme. It had a mass of 325 kilograms (717 lb).Kosmos 257 was launched from Site 133/1 at Plesetsk, atop a Kosmos-2I 63SM carrier rocket.".
- Kosmos_257 label "Cosmos 257".
- Kosmos_257 label "Kosmos 257".
- Kosmos_257 sameAs Cosmos_257.
- Kosmos_257 sameAs m.076y5fq.
- Kosmos_257 sameAs Q51579.
- Kosmos_257 sameAs Q51579.
- Kosmos_257 wasDerivedFrom Kosmos_257?oldid=588851272.
- Kosmos_257 isPrimaryTopicOf Kosmos_257.