Badr-4

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.[2] It provides fixed satellite communications services in C- and Ku-bands from the 26° East orbital position.[3]

Badr-4
Mission typeCommunication
OperatorArabsat
COSPAR ID2006-051A
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)
RocketProton-M/Briz-M
Launch siteBaikonur 200/39
ContractorILS
Orbital parameters
Reference systemGeocentric
RegimeGeostationary
Longitude26.0º East
Period24 hours
 

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.[4]

Description

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.[5][6]

References
  1. "Badr-4 & Badr-6". EADS Astrium. Archived from the original on 15 July 2010. Retrieved 22 July 2010.
  2. "ILS Proton Successfully Launches Arabsat's BADR-4 Satellite". International Launch Services. November 9, 2006. Retrieved January 28, 2023.
  3. "Badr 4 at 26.0°E". LyngSat.
  4. Ray, Justin (July 7, 2008). "Two satellites in orbit after good ride from Ariane 5". Spaceflight Now. Retrieved January 28, 2023.
  5. "Astrium Satellites delivers ARABSAT's BADR-4 in orbit". spaceflightnow.com. December 5, 2006. Retrieved January 28, 2023.
  6. Russell, Kendall (May 24, 2017). "Arabsat to Support EuroNews on BADR 4 Satellite". Via Satellite. Retrieved January 28, 2023.


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