Astra 1M


Astra 1M
Mission typeCommunication
COSPAR ID2008-057A
SATCAT no.33436
WebsiteSES - Astra 1M
Mission duration15 years (planned)
Spacecraft properties
BusEurostar 3000S
(now Airbus Defence and Space)
Launch mass5,344 kilograms (11,782 lb)
Power8.3–9.3 kW
Start of mission
Launch date5 November 2008, 20:44:20 (2008-11-05UTC20:44:20Z) UTC
Launch siteBaikonur 200/39
Orbital parameters
Reference systemGeocentric
Longitude19.2° East
SlotAstra 19.2°E
Perigee altitude35,788 kilometres (22,238 mi)[1]
Apogee altitude35,795 kilometres (22,242 mi)[1]
Inclination0.03 degrees[1]
Period1436.05 minutes[1]
Epoch21 January 2015, 01:56:10 UTC[1]
Band36 J band (IEEE Ku band)
Bandwidth26 megahertz
33 megahertz
TWTA power150 watts
EIRP53 decibel-watts

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 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


  1. ^ a b c d e "ASTRA 1M Satellite details 2008-057A NORAD 33436". N2YO. 21 January 2015. Retrieved 25 January 2015.
  2. ^ a b "Astra 1M". SES Astra. Retrieved 31 May 2010.
  3. ^ "UCS Satellite Database". Union of Concerned Scientists. 1 April 2010. Archived from the original on 3 June 2010. Retrieved 31 May 2010.
  4. ^ Krebs, Gunter. "Astra 1M". Gunter's Space Page. Archived from the original on 29 May 2010. Retrieved 31 May 2010.
  5. ^ 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