Mission typeCommunication
COSPAR ID2006-051A Edit this at Wikidata
SATCAT no.29526Edit this on Wikidata
Spacecraft properties
ManufacturerEADS Astrium[1]
Thales Alenia Space
Launch mass3,341 kilograms (7,366 lb)
Power12.5 watts
Start of mission
Launch date8 November 2006 (2006-11-08)
Launch siteBaikonur 200/39
Orbital parameters
Reference systemGeocentric
Longitude26.0º East
Period24 hours

Badr-4 (a.k.a. Arabsat 4B) is an EADS Astrium-built[1] communications satellite operated by Arabsat, launched 8 November 2006 on a Proton-M/Briz-M rocket. It provides fixed satellite communications services in C- and Ku-bands from the 26° East orbital position.[2]

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 Ku band (16 in BSS 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, a high-power broadcast satellite to cover the Middle East and Africa.[1] Badr-6 was launched by an Ariane 5 on 7 July 2008.


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This satellite carries 32 transponders in Ku band/FSS & Ku 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 Ku band transponders.


  1. ^ a b c "Badr-4 & Badr-6". EADS Astrium. Archived from the original on 15 July 2010. Retrieved 22 July 2010.
  2. ^ "Badr 4 at 26.0°E". LyngSat.