Missions

XM-4

Payload

XM-4 is the 4th Boeing 702 spacecraft manufactured at the Boeing Satellite Development Center in El Segundo, Calif. - and orbited by Sea Launch - for XM Satellite Radio. The high-power S-band satellites have Digital Audio Radio Service (DARS) payloads built by Alcatel Alenia Space, in France, to broadcast state-of-the-art digital radio programming directly to cars, homes and portable radios throughout the continental United States and Canada. Designed for a 15-year lifespan, the XM-4 satellite will have 18 kilowatts of total power at the beginning of life on orbit. Boeing is the world's leading manufacturer of geostationary satellites. Sea Launch's previous XM missions were successfully completed in March 2001, May 2001 and February 2005.

XM Satellite Radio is America's number one satellite radio service with more than 7 million subscribers. Broadcasting live daily from studios in Washington, DC, New York City, and the Country Music Hall of Fame in Nashville, Tenn., as well as from Toronto and Montreal in Canada. XM broadcasts more than 170 digital channels of choice from coast to coast: the most commercial-free music channels, plus premier sports, talk, comedy, children's and entertainment programming; and the most advanced traffic and weather information.

 
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