Sirius FM6 (Radiosat 6) [SSL]
Space Systems/Loral (SS/L) and Sirius Satellite Radio announced in August 2007 that SS/L has been awarded a contract from Sirius to build Sirius FM-6, a new, high-power satellite designed to operate in a highly inclined elliptical orbit (HIEO). This satellite will be the sixth SS/L-built spacecraft in the Sirius fleet.
Sirius FM-6 will provide nearly double the power of the satellites in Sirius' existing, in-orbit HIEO constellation, continuing to improve service for Sirius subscribers. Scheduled for completion in 2010, the new satellite will provide more than 15 years of service life. It was to replace the Sirius FM-1 and FM-2 satellites, which would have reduced the HEIO-constellation from three to two satellites, but it was later decided, that FM-6 would also be placed into the geostationary orbit.
The spacecraft design is mostly identical to Sirius FM-5.
|Type / Application:||Communication (Direct radio broadcasting)|
|Operator:||Sirius Satellite Radio|
|Contractors:||Space Systems/Loral (SS/L)|
|Equipment:||1 X/S-band transponder|
|Propulsion:||R-4D, 4 SPT-100 plasma thrusters|
|Power:||2 deployable solar arrays, batteries|
|Orbit:||GEO (formerly planned:23975 km × 46983 km, 63.4°)|
|Sirius FM6 (Radiosat 6)||2013||TB||Proton-M Briz-M (Ph.3)|