Badr-4 (a.k.a. Arabsat 4B) is an
EADS Astrium-built
communications satellite
A communications satellite is an artificial satellite that relays and amplifies radio telecommunication signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Ear ...
operated by
Arabsat
The Arab Satellite Communications Organization (often abbreviated as Arabsat) is a communications satellite operator in the Arab World, headquartered in the city of Riyadh, Saudi Arabia. Arabsat was created to deliver satellite-based, public and ...
, launched 8 November 2006 on a
Proton-M
The Proton-M, (Протон-М) GRAU index 8K82M or , is an expendable Russian heavy-lift launch vehicle derived from the Soviet-developed Proton. It is built by Khrunichev, and launched from sites 81 and 200 at the Baikonur Cosmodrome i ...
/
Briz-M rocket. It provides fixed satellite communications services in C- and K
u-bands from the 26° East orbital position.
The satellite is based on the Eurostar E2000+ platform. Its payload was supplied by Alcatel Alenia Space. The Badr-4-payload consists of 28 active channels in K
u band (16 in
BSS
BSS may stand for:
Computing and telecommunications
* .bss ("Block Started by Symbol"), in compilers and linkers
* Base station subsystem, in mobile telephone networks
* Basic Service Set, the basic building block of a wireless local area networ ...
and 12 in
FSS). Payload power is about 6 kW. The satellite has two 2.5 m deployable antennas and one 1.35 m top floor antenna.
Due to success of the satellite, Arabsat let another agreement for an upgraded version of Badr-4 communication satellite: in June 2006, Arabsat gave the contract to EADS Astrium for construction of
Badr-6
The Arab Satellite Communications Organization (often abbreviated as Arabsat) is a communications satellite operator in the Arab World, headquartered in the city of Riyadh, Saudi Arabia. Arabsat was created to deliver satellite-based, public and ...
, a high-power broadcast satellite to cover the Middle East and Africa.
Badr-6 was launched by an Ariane 5 on 7 July 2008.
Description
This satellite carries 32
transponders in K
u band/FSS & K
u band/BSS. The spacecraft utilizes Astrium's
Eurostar E2000+ platform to carry 22 C-band transponders (including eight 52 W moderate power transponders) and 12 K
u band transponders.
References
External links
badr-4-badr-6 at EADS Astrium pageIMS
Official provider's site
Communications satellites in geostationary orbit
Spacecraft launched in 2006
Satellites using the Eurostar bus
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