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.
| Mission type | Communication |
|---|---|
| Operator | SES |
| COSPAR ID | 2008-057A |
| SATCAT no. | 33436 |
| Website | SES - Astra 1M |
| Mission duration | 15 years (planned) |
| Spacecraft properties | |
| Bus | Eurostar 3000S |
| Manufacturer | Astrium (now Airbus Defence and Space) |
| Launch mass | 5,344 kilograms (11,782 lb) |
| Power | 8.3–9.3 kW |
| Start of mission | |
| Launch date | 5 November 2008, 20:44:20 UTC |
| Rocket | Proton-M/Briz-M |
| Launch site | Baikonur 200/39 |
| Contractor | ILS |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Geostationary |
| Longitude | 19.2° East |
| Slot | Astra 19.2°E |
| Perigee altitude | 35,788 kilometres (22,238 mi)[1] |
| Apogee altitude | 35,795 kilometres (22,242 mi)[1] |
| Inclination | 0.03 degrees[1] |
| Period | 1436.05 minutes[1] |
| Epoch | 21 January 2015, 01:56:10 UTC[1] |
| Transponders | |
| Band | 36 J band (IEEE Ku band) |
| Bandwidth | 26 megahertz 33 megahertz |
| TWTA power | 150 watts |
| EIRP | 53 decibel-watts |
History
Astra 1M was built by Astrium (now Airbus Defence and Space) 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 5,344 kilograms (11,782 lb),[2] with an expected operational lifespan of around 15 years,[3] however four of its transponders will be deactivated five years after launch.[4] 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.[2]
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.[5] 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
References
- "ASTRA 1M Satellite details 2008-057A NORAD 33436". N2YO. 21 January 2015. Retrieved 25 January 2015.
- "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.
External links
- IMS Official provider's site