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Arabsat-5A

Communications satellite

Field	Value
name	Arabsat-5A
mission_type	Communication
operator	Arabsat
website	[arabsat.com/pages/Arabsat5A.aspx](https://web.archive.org/web/20150615053015/http://www.arabsat.com/pages/Arabsat5A.aspx)
COSPAR_ID	2010-032B
SATCAT	36745
mission_duration	15 years
spacecraft_bus	Eurostar-3000
manufacturer	Astrium
launch_mass	4800 kg
power	11-12 kilowatts
launch_date	UTC
launch_rocket	Ariane 5ECA
launch_site	Kourou ELA-3
launch_contractor	Arianespace
deactivated
orbit_epoch	24 December 2013, 06:06:12 UTC
orbit_reference	Geocentric
orbit_regime	Geostationary
orbit_periapsis	35779 km
orbit_apoapsis	35807 km
orbit_inclination	0.05 degrees
orbit_period	23.93 hours
orbit_longitude	30.5° East
apsis	gee
trans_band	16 G/H band (IEEE C band)
24 J band (IEEE Ku band)

24 J band (IEEE Ku band) 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.

History

Arabsat-5A was constructed by Astrium, and is based on the Eurostar-3000 satellite bus. It has a mass of 4800 kg, 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. 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.

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

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. It is expected to operate for fifteen years.

References

McDowell, Jonathan. "Launch Log". Jonathan's Space Page.
(24 December 2013). "ARABSAT 5A Satellite details 2010-032B NORAD 36745". N2YO.
"Arabsat-5A". Arabsat.
Krebs, Gunter. "Arabsat-5A". Gunter's Space Page.
"Arabsat 5A Technical Users Guide". Arabsat.
(23 June 2010). "Flight 195 – Arabsat-5A - COMS: Launch delayed". Arianespace.
(26 June 2010). "Arianespace launch 195 – Arabsat-5A and COMS: Liftoff is set for Saturday, June 26, 2010". Arianespace.
(June 26, 2010). "Mission accomplished! Arianespace orbits Arabsat-5A and COMS". Arianespace.
(21 June 2010). "Ariane 5 Does The Heavy Lifting For Arabsat-5A and COMS". Satnews Daily.
"Arabsat-5A Main Data". Arabsat.

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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