|Major contractors||EADS Astrium
|Launch date||5 November 2008
|Launch site||Baikonur Site 200/39|
|Mission duration||15 years (planned)|
|Homepage||SES - Astra 1M|
|Mass||5,344 kilograms (11,780 lb)|
|Apoapsis||35,852 kilometres (22,277 mi)|
|Periapsis||35,804 kilometres (22,248 mi)|
|Orbital period||24 hours|
|Transponders||36 J band (IEEE Ku band)|
|Twta output||150 W|
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 around 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 5,344 kilograms (11,780 lb), 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
- "Astra 1M". SES Astra. Retrieved 31 May 2010.
- "UCS Satellite Database". Union of Concerned Scientists. 1 April 2010. Archived from the original on 3 June 2010. Retrieved 31 May 2010.
- Krebs, Gunter. "Astra 1M". Gunter's Space Page. Archived from the original on 29 May 2010. Retrieved 31 May 2010.
- McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Archived from the original on 7 May 2010. Retrieved 31 May 2010.
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