Astra 1M

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
Astra 1M
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 (2008-11-05UTC20:44:20Z) 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 35,788 kilometres (22,238 mi)[1]
Apogee 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]
Band 36 J band (IEEE Ku band)
Bandwidth 26 megahertz
33 megahertz
TWTA power 150 watts
EIRP 53 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[edit]


  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[edit]

  • IMS Official provider's site