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 is the sixth SS/L-built spacecraft in the Sirius fleet.
Sirius FM-6 provides nearly double the power of the satellites in Sirius' existing first-generation in-orbit HIEO constellation, continuing to improve service for Sirius subscribers. Scheduled for completion in 2010, the new satellite provides more than 15 years of service life.
The spacecraft design is mostly identical to Sirius FM-5.
It was to replace the Sirius FM-1 and FM-2 satellites, which would have reduced the HIEO-constellation from three to two satellites, but it was later decided, that FM-6 would also be placed into the geostationary orbit at 116.15° west.
|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)||2013-058A||25.10.2013||TB LC-200/39||Proton-M Briz-M (Ph.3)|