cosmos.wikisort.org - Spacecraft

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 K_u-bands from the 26° East orbital position.[2]

Badr-4

Mission type	Communication
Operator	Arabsat
COSPAR ID	2006-051A
SATCAT no.	29526
Spacecraft properties
Manufacturer	EADS Astrium[1] Thales Alenia Space
Launch mass	3,341 kilograms (7,366 lb)
Power	12.5 watts
Start of mission
Launch date	8 November 2006 (2006-11-08)
Rocket	Proton-M/Briz-M
Launch site	Baikonur 200/39
Contractor	ILS
Orbital parameters
Reference system	Geocentric
Regime	Geostationary
Longitude	26.0º East
Period	24 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 K_u 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.

Description

This section does not cite any sources. (June 2008)

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 page^{[permanent dead link]}
• IMS Official provider's site

На других языках

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- [en] Badr-4

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[ru] ArabSat 4B

ArabSat 4B (Badr 4) — телекоммуникационный спутник, принадлежащий Арабской организации спутниковой связи Arab Satellite Communications Organizaton {ArabSat} {Эр-Рияд}. Он предназначается для оказания услуг телефонной связи, цифрового спутникового телевещания и передачи данных в странах Ближнего и Среднего Востока, Северной Африки и Европы.

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