Mission type | Military communications |
---|---|
Operator | Astrium Services On behalf of British Ministry of Defence |
COSPAR ID | 2012-075A |
SATCAT no. | 39034 |
Mission duration | 15 years |
Spacecraft properties | |
Bus | Eurostar 3000S |
Manufacturer | Astrium |
Launch mass | 4,800 kilograms (10,600 lb) |
Start of mission | |
Launch date | 19 December 2012, 21:49 UTC |
Rocket | Ariane 5ECA VA211 |
Launch site | Kourou ELA-3 |
Contractor | Arianespace |
Orbital parameters | |
Reference system | Geocentric |
Regime | Geostationary |
Longitude | 53° East |
Skynet 5D is a military communications satellite operated by Airbus Defence and Space on behalf of the British Ministry of Defence. It was the last of four Skynet 5 satellites to be launched.
The Skynet 5D spacecraft was constructed by Astrium, based on the Eurostar 3000S satellite bus. It had a mass at launch of approximately 4,800 kilograms (10,600 lb), and is designed to operate for at least 15 years. [1] Its 34-metre (112 ft) solar arrays will generate a minimum of 6 kilowatts [2] to power its UHF and X-band communications systems. The satellite's payload includes jamming countermeasures. [3]
The Ministry of Defence described the satellite as having a "key role in gathering intelligence on operations", as well as communications. [4]
Skynet 5D was launched by an Ariane 5ECA carrier rocket flying from ELA-3 at Kourou. The launch occurred at 21:49 UTC on 19 December 2012. [5] Skynet 5D was one of two satellites aboard the rocket, the other being Mexsat Bicentenario, which was located below it; Skynet 5D was mounted atop a Sylda 5 adaptor. [2]
The launch placed Skynet 5D into a geosynchronous transfer orbit, from which was planned to raise itself into geostationary orbit. [5] The spacecraft was expected to be placed at a longitude of 25 degrees East. [2]
Skynet is a family of military communications satellites, now operated by Babcock International on behalf of the United Kingdom's Ministry of Defence (MoD). They provide strategic and tactical communication services to the branches of the British Armed Forces, the British intelligence agencies, some UK government departments and agencies, and to allied governments. Since 2015 when Skynet coverage was extended eastward, and in conjunction with an Anik G1 satellite module over America, Skynet offers near global coverage.
Astrium was an aerospace manufacturer subsidiary of the European Aeronautic Defence and Space Company (EADS) that provided civil and military space systems and services from 2006 to 2013. In 2012, Astrium had a turnover of €5.8 billion and 18,000 employees in France, Germany, the United Kingdom, Spain and the Netherlands. Astrium was a member of Institute of Space, its Applications and Technologies.
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