Английская Википедия:Arabsat-5A

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Шаблон:Short description Шаблон:Infobox spaceflight Arabsat-5A is a Saudi Arabian communications satellite operated by Arabsat. It will be used to provide television, internet and telephone services to Arabia, Africa and Europe.[1]

History

Arabsat-5A was constructed by Astrium, and is based on the Eurostar-3000 satellite bus. It has a mass of Шаблон:Convert, and carries forty transponders; sixteen broadcasting in the G/H band of the NATO-defined spectrum, or the C band of the IEEE-defined spectrum, and twenty four operating in the NATO J band or the IEEE Ku band.[2] Its solar arrays are expected to generate around 12 kilowatts of power at the beginning of the satellite's design life, and around 11 kilowatts at the end of it.[3]

Arabsat-5A was launched by Arianespace using an Ariane 5ECA carrier rocket lifting off from ELA-3 at the Guiana Space Centre in Kourou, French Guiana. The first attempt to launch it occurred on 23 June 2010, however the launch was scrubbed due to a problem with one of the rocket's subsystems.[4] A subsequent attempt on 24 June was also scrubbed, due to a problem with the pressurisation of the rocket's fuel tanks.[5] The launch occurred at 21:41 UTC on 26 June 2010.[5][6] The South Korean COMS-1 satellite was launched by the same rocket, with a SYLDA adaptor being used to separate the spacecraft. Arabsat-5A was mounted atop the SYLDA, with COMS-1 underneath it.[7]

Following launch, Arabsat-5A separated into a geosynchronous transfer orbit. It then use an apogee motor to raise itself into geostationary orbit. Once it reached geostationary orbit, it underwent testing before beginning operations at a longitude of 30.5 degrees East, where it replaced Arabsat-2B.[2] It is expected to operate for fifteen years.[8]

References

Шаблон:Reflist

External links

Шаблон:Portal

  • IMS Official provider's site

Шаблон:Orbital launches in 2010

Шаблон:Use British English