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SXM 7, 8

SXM 7 and 8 are two large high power broadcasting satellites for SiriusXM's digital audio radio service (DARS).

Space Systems/Loral (SS/L) got in July 2016 the contract to build the two satellites based on their SSL-1300 bus. Both SXM-7 and SXM-8 will operate in the S-band spectrum. Each satellite will generate more than 20-kW of power and will have a large unfurlable antenna reflector, which enables broadcast to radios without the need for large dish-type antennas on the ground.

The satellites will be launched in 2019 and 2020 to replace the XM 3 and 4 satellites.

Nation: USA
Type / Application: Communication
Operator: SiriusXM
Contractors: Space Systems/Loral (SS/L)
Equipment: S-Band transponders
Configuration: SSL-1300
Propulsion: R-4D-15 HiPAT, 4 × SPT-100 plasma thrusters
Power: 2 deployable solar arrays, batteries
Lifetime: 15 years
Mass:
Orbit: GEO
Satellite COSPAR Date LS Launch Vehicle Remarks
SXM 7 - 2019
SXM 8 - 2019

References:

Further XM missions:
Further Sirius (Radiosat) missions: