Comparison of the Arabsat
series 3 satellites.

 

The main satellite comparison index

Satellite: Arabsat 3A
. .
Launch 26 / 2 / 1999
Launch Location Kourou
Launch Mass (kg) 2708
Expected Lifetime (years) 12
Power Consumption (watts) 6400
Transponder Capacity at launch 20 (+8 spare)
TWTA Output (watts) ?
Transponder Bandwidth (MHz) 34
Channels (MHz) 11700 - 12500
Current Location 26°E
Possible Decommission Date 2011
Manufacturer / Spacecraft type Aerospatiale Spacebus 3000B
Stabilisation type 3-axis

 

The satellite suffered a major power failure on 7th December 2001, which disabled 8 transponders. The cause was either a problem with a power switching circuit, or the loss of a solar panel. A $170 million insurance claim was filed, and the satellite was declared a total loss. (This occurs if a satellite loses more than 25% of its transmission output capacity). Panamsat 5 was hired and co-located to assist. Arabsat 3A is still operating, but with a reduced transponder loading. During 2003, Hotbird 5 (renamed Eurobird 2, then Arabsat 2D) was also hired and slotted at 25.8E to help further.

 

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