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・ Astra (missile)
・ Astra (radio personality)
・ ASTRA (reactor)
・ Astra (satellite)
・ Astra (software)
・ Astra (weapon)
・ Astra .44 MAGNUM CTG.
・ Astra 19.2°E
・ Astra 1A
・ Astra 1B
・ Astra 1C
・ Astra 1D
・ Astra 1E
・ Astra 1K
・ Astra 1KR
Astra 1M
・ Astra 1N
・ Astra 23.5°E
・ Astra 28.2°E
・ Astra 2A
・ Astra 2B
・ Astra 2C
・ Astra 2D
・ Astra 2E
・ Astra 2F
・ Astra 2G
・ Astra 31.5°E
・ Astra 3A
・ Astra 3B
・ Astra 400


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Astra 1M : ウィキペディア英語版
Astra 1M

Astra 1M is a Luxembourgian geostationary communications satellite which is operated by SES. It is positioned in geostationary orbit at a longitude of 19.2 degrees East, from where it is used to provide direct-to-home broadcasting to Europe.
Astra 1M was built by EADS Astrium under a contract signed in 2005, and is based on the Eurostar 3000S satellite bus. It is equipped with thirty six transponders operating in the J band of the NATO-defined spectrum, or the Ku band of the older IEEE-defined spectrum. At launch it had a mass of ,〔(【引用サイトリンク】url=http://www.ses-astra.com/business/en/satellite-fleet/satellite-list/astra1m/index.php )〕 with an expected operational lifespan of around 15 years, however four of its transponders will be deactivated five years after launch. At the beginning of its operational life, it had a maximum power consumption of 9.3 kilowatts, which is expected to have decreased to 8.3 kilowatts by the end of the satellite's operational life.〔
The launch of Astra 1M was conducted by International Launch Services, using a Proton-M carrier rocket with a Briz-M upper stage. The launch occurred from Site 200/39 at the Baikonur Cosmodrome in Kazakhstan, at 20:44:20 GMT on 5 November 2008. Astra 1M was successfully placed into a geosynchronous transfer orbit, from which it raised itself to geostationary orbit by means of an onboard apogee motor.
==See also==

*2008 in spaceflight
*SES satellite operator
*Astra satellite family

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Astra 1M」の詳細全文を読む



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