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SXM-7 is a large high power broadcasting satellite 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 - SXM-7 and SXM-8. Both 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. SXM-7 is meant to replace the XM-3 satellite.
Stage Expended
Limiting rule: No flight through a thick (>4500 ft) cloud layer extending across the freezing level.
max-top 7850 m, mean 5547 m, 100% cover, freezing 5120 m · max cloud-top 7850 m above freezing 5120 m (100% cover in 10 nmi) · no GLM flashes within 25 nmi / 30 min, likely cirrus / stratiform ice rather than cumulus