Kosmos 2481

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Kosmos 2481
Mission type Communications
Operator VKO
COSPAR ID 2012-041A OOjs UI icon edit-ltr-progressive.svg
SATCAT no. 38733
Spacecraft properties
Spacecraft type Strela-3
Manufacturer NPO PM [1]
Launch mass225 kilograms (496 lb) [1]
Start of mission
Launch date28 July 2012, 01:35 (2012-07-28UTC01:35Z) UTC
Rocket Rokot/Briz-KM
Launch site Plesetsk 133/3
Orbital parameters
Reference system Geocentric
Regime Low Earth
Perigee altitude 1,483 kilometres (921 mi) [2]
Apogee altitude 1,511 kilometres (939 mi) [2]
Inclination 82.48 degrees
Period 115.91 minutes

Kosmos 2481 (Russian : 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.

Contents

Launch

Kosmos 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. [2] [3] 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. [2] [3]

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. [2]

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. [4]

Ground track of Kosmos 2481 Kosmos 2481 ground track.jpg
Ground track of Kosmos 2481

Strela-3

Kosmos 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. [5] :15 The satellites are in low Earth orbit going round the Earth every 116 minutes. [2] [6] A full deployment of Strela-3 craft should consist of twelve satellites. [5] :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] [3] [7]

Strela-3 has a civilian variant called Gonets which is used by the Russian government for communication in remote areas. [8] It can take between two minutes and six hours to deliver messages.[ citation needed ]

The previous satellites of this class, Kosmos 2467 and Kosmos 2468, were launched together on 8 September 2010. [7]

See also

Related Research Articles

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Kosmos 2126, also known as Cosmos 2126, was a Russian Satellite that was part of the Strela-1M generation of communications satellites that operated in low Earth orbit to collect (store) information then forward (dump) it to a ground station when overhead of its ground station. Kosmos-2126 was launched in 1991 from the Plesetsk Cosmodrome.

References

  1. 1 2 3 Krebs, Gunter. "Strela-3 (14F13)". Gunter's Space Page. Retrieved 2012-08-16.
  2. 1 2 3 4 5 6 "2012-041". Zarya. n.d. Retrieved 2012-08-15.
  3. 1 2 3 Pavel, Podvig (2012-07-28). "Successful launch of Strela-3 and Gonets-M communication satellites". Russian Strategic Nuclear Forces. Retrieved 2012-08-09.
  4. "Rockot launches four satellites". Space Today. 2012-07-29. Retrieved 2012-08-15.
  5. 1 2 Podvig, Pavel; Zuang, Hui (2008). Russian and Chinese Responses to US Military Plans in Space (PDF). Cambridge, Massachusetts: American Academy of Arts and Sciences. ISBN   978-0-87724-068-6. Archived from the original (PDF) on 2016-03-03. Retrieved 2012-08-15.
  6. Krebs, Gunter. "Strela-3M (Rodnik, 14F132)". Gunter's Space Page. Retrieved 2012-08-15.
  7. 1 2 Pavel, Podvig (2010-09-08). "Gonets-M, Strela-3, and Strela-3M satellites are in orbit". Russian Strategic Nuclear Forces. Retrieved 2012-08-09.
  8. Krebs, Gunter D. "Gonets"". Gunter's Space Page. Retrieved May 13, 2023.