Astra 1M
| Operator | SES |
|---|---|
| Major contractors | EADS Astrium ILS (LSP) |
| Bus | Eurostar 3000S |
| Mission type | Communication |
| Launch date | 5 November 2008 20:44:20 GMT |
| Carrier rocket | Proton-M/Briz-M |
| Launch site | Baikonur Site 200/39 |
| Mission duration | 15 years (planned) |
| COSPAR ID | 2008-057A |
| Homepage | SES - Astra 1M |
| Mass | 5,344 kilograms (11,780 lb) |
| Power | 8.3–9.3 kW |
| Orbital elements | |
| Regime | Geostationary orbit |
| Apoapsis | 35,852 kilometres (22,277 mi) |
| Periapsis | 35,804 kilometres (22,248 mi) |
| Orbital period | 24 hours |
| Longitude | 19.2° East |
| Transponders | |
| Transponders | 36 J band (IEEE Ku band) |
| Twta output | 150 W |
| Bandwidth | 26 MHz 33 MHz |
| EIRP | 53 dBW |
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),[1] with an expected operational lifespan of around 15 years,[2] however four of its transponders will be deactivated five years after launch.[3] 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.[1]
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.[4] 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.
[edit] See also
- 2008 in spaceflight
- SES satellite operator
- Astra satellite family
[edit] References
- ^ a b "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.
|
|||||||||||||||||||||||
 |
This article about one or more communications satellites is a stub. You can help Wikipedia by expanding it. |
 |
This article about one or more spacecraft of Luxembourg is a stub. You can help Wikipedia by expanding it. |
