SXM 7 [Maxar]
SXM 7 to 12 are the third generation of large high power broadcasting satellites for SiriusXM's digital audio radio service (DARS).
Space Systems/Loral (SS/L), now Maxar Technologies, 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 replace the XM 3 and 4 satellites.
SXM 7 was launched in December 2020 and successfully reached geostationary orbit. But after 6 weeks during initial testing a payload failure occured. The satellite was declared a total loss in February 2021. SXM 7 has a secondary payload that is functioning for a separate service.
SXM 8 was launched in June 2021.
SXM 9 was ordered in August 2021 as a replacement for the failed SXM 7.
SXM 10 was ordered also in August 2021.
SXM 11 and SXM 12 were ordered in November 2022.
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