| 词条 | Kosmos 2481 |
| 释义 |
| name = Kosmos 2481 | image = | image_caption = | mission_type = Communications | operator = VKO | website = | COSPAR_ID = 2012-041A | SATCAT = 38733 | mission_duration = | spacecraft_type = Strela-3 | manufacturer = NPO PM[1] | dry_mass = | launch_mass = {{convert|225|kg}}[1] | power = | launch_date = {{start-date|28 July 2012, 01:35|timezone=yes}} UTC | launch_rocket = Rokot/Briz-KM | launch_site = Plesetsk 133/3 | launch_contractor = | disposal_type = | deactivated = | last_contact = | decay_date = | orbit_epoch = | orbit_reference = Geocentric | orbit_regime = Low Earth | orbit_periapsis = {{convert|1483|km}}[3] | orbit_apoapsis = {{convert|1511|km}}[3] | orbit_inclination = 82.48 degrees | orbit_period = 115.91 minutes | apsis = gee }} Kosmos 2481 ({{lang-ru|Космос 2481}} meaning Cosmos 2481) is a Russian Strela-3 military communications satellite which was launched in 2012 by the Russian Aerospace Defence Forces. It was launched with 2 Gonets-M civilian communication satellites and a research satellite called Yubileiny-2, also known as MiR. LaunchKosmos 2481 was launched from Site 133/3 at Plesetsk Cosmodrome in northern Russia. It was launched by a Rockot carrier rocket with a Briz-KM upper stage at 01:35 UTC on 28 July 2012.[3][6] The launch successfully placed the satellite into low earth orbit. It subsequently received its Kosmos designation, and the international designator 2012-041A. The United States Space Command assigned it the Satellite Catalog Number 38733.[3][6] The Russian military announced that the rocket was under control of the Titov Main Test and Space Systems Control Centre at 01:38 UTC and the satellites were released from the rocket at 03:19 UTC.[3][10] It was the first launch of a Rockot since February 2011 when a satellite was placed in the wrong orbit due to a problem with the upper stage.[11][12] Strela-3Kosmos 2481 is a Strela-3 satellite. They are described as store-dump communications satellites which receive information from the ground when they pass overhead, and store that information until they pass over the ground station they deliver the information to.{{r|Podvig_book2|page1=15}} The satellites are in low earth orbit going round the earth every 116 minutes.[3][14] A full deployment of Strela-3 craft should consist of twelve satellites.{{r|Podvig_book2|page1=15}} The satellite has the GRAU index 17F13, showing it is a Strela-3, not a Strela-3M (also called Rodnik) as they have a GRAU index of 17F132.[1][6][17] Strela-3 has a civilian variant called Gonets which is used by the Russian government for communication in remote areas. It can take between two minutes and six hours to deliver messages.[10] The previous satellites of this class, Kosmos 2467 and Kosmos 2468, were launched together on 8 September 2010.[17] See also{{Portal|Spaceflight}}
References 3 : Spacecraft launched in 2012|Kosmos satellites|Spacecraft launched by Rokot rockets |
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