Sirius FM-5

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Sirius FM-5
Mission type Communication
Operator Sirius XM Radio
COSPAR ID 2009-034A
SATCAT no. 35493
Mission duration 15 years
Spacecraft properties
Bus LS-1300
Manufacturer Space Systems Loral
Launch mass 5,820 kilograms (12,830 lb)
Start of mission
Launch date 30 June 2009, 19:10:00 (2009-06-30UTC19:10Z) UTC
Rocket Proton-M/Briz-M
Launch site Baikonur 200/39
Contractor ILS
Orbital parameters
Reference system Geocentric
Regime Geostationary
Longitude 86.2° west
Perigee 35,784 kilometers (22,235 mi)
Apogee 35,801 kilometers (22,246 mi)
Inclination 0.01 degrees
Period 24 hours
Epoch January 21, 2014, 08:13:09 UTC[1]
Band 1 E/F/I-band
Coverage area North America

Sirius FM-5, also known as Radiosat 5, is an American communications satellite which will be operated by Sirius XM Radio. It was constructed by Space Systems Loral, based on the LS-1300 bus, and carries a single transponder designed to transmit in the NATO E F and I bands (IEEE S and X bands). It will be used to provide satellite radio broadcasting to North America.

Sirius FM-5 was launched by a Proton-M/Briz-M rocket flying from Site 200/39 at the Baikonur Cosmodrome. The launch was conducted by International Launch Services, and occurred at 19:10 GMT on 30 June 2009. Around nine hours after launch, the satellite separated from the carrier rocket into a geosynchronous transfer orbit. It will raise itself into geostationary orbit by means of its onboard R-4D apogee motor. It also carries four SPT-100 engines for manoeuvring.

It is the first Sirius Radio satellite to be placed in geostationary orbit; the three previous Sirius satellites operate in tundra orbits. Originally placed at 96° west, it was moved to 86.2° west alongside XM-5.[2]

See also


  1. ^ "SIRIUS FM-5 Satellite details 2009-034A NORAD 35493". N2YO. January 21, 2014. Retrieved January 21, 2014.
  2. ^ Sirius FM-5 at
  • Krebs, Gunter. "Sirius FM5, FM6 (Radiosat 5, 6)". Gunter's Space Page. Retrieved 2009-06-30.
  • "Sirius FM-5 Blog". International Launch Services. Retrieved 2009-06-30.

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