Sirius FM-4 Broadcasting Satellite

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Sirius FM-4 Broadcasting Satellite

The Sirius FM-4 broadcasting satellite was built as a flight-ready back-up for a constellation of three satellites developed by SiriusXM and manufactured by Space Systems/Loral. The FM-4 satellite is on display in the James S. McDonnell Space Hangar of the National Air and Space Museum’s Steven F. Udvar-Hazy Center.

More information about the satellite in this press release: http://airandspace.si.edu/events/pressroom/releaseDetail.cfm?releaseID=302