cosmos.wikisort.org - Spacecraft

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.[3]

This article uses bare URLs, which are uninformative and vulnerable to link rot. (August 2022)

Arabsat-5A

Mission type	Communication
Operator	Arabsat
COSPAR ID	2010-032B
SATCAT no.	36745
Website	arabsat.com/pages/Arabsat5A.aspx
Mission duration	15 years
Spacecraft properties
Bus	Eurostar-3000
Manufacturer	Astrium
Launch mass	4,800 kilograms (10,600 lb)
Power	11-12 kilowatts
Start of mission
Launch date	26 June 2010, 21:41 (2010-06-26UTC21:41Z) UTC[1]
Rocket	Ariane 5ECA
Launch site	Kourou ELA-3
Contractor	Arianespace
Orbital parameters
Reference system	Geocentric
Regime	Geostationary
Longitude	30.5° East
Perigee altitude	35,779 kilometres (22,232 mi)
Apogee altitude	35,807 kilometres (22,249 mi)
Inclination	0.05 degrees
Period	23.93 hours
Epoch	24 December 2013, 06:06:12 UTC[2]
Transponders
Band	16 G/H band (IEEE C band) 24 J band (IEEE Ku band)

History

Arabsat-5A was constructed by Astrium, and is based on the Eurostar-3000 satellite bus. It has a mass of 4,800 kilograms (10,600 lb), 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 K_u band.[4] 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.[5]

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.[6] A subsequent attempt on 24 June was also scrubbed, due to a problem with the pressurisation of the rocket's fuel tanks.[7] The launch occurred at 21:41 UTC on 26 June 2010.[7][8] 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.[9]

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.[4] It is expected to operate for fifteen years.[10]

References

External links

• IMS Official provider's site

На других языках

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[de] Arabsat 5A

Arabsat 5A auf 30,5° Ost ist ein Fernsehsatellit der Arab Satellite Communications Organization (ARABSAT) mit Sitz in Riad.

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- [en] Arabsat-5A

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