SXM-8

SXM-8 is the second of two originally planned satellites to replace the aging XM-3 and XM-4 satellites launched in 2005 and 2006, respectively, by Zenit 3(SL) rockets.

SXM-8 is owned and operated by SiriusXM as a part of their high-power broadcasting satellite constellation.  The company ordered SXM-8 alongside its twin, SXM-7, in July 2016 to be built by Space System/Loral (SSL), now Maxar Technologies.  The two satellites are based on the Maxar 1300 satellite bus.