This was in the WSJ
XM Suffers Service Outage
Due to Problems With Satellite
By ANDY PASZTOR and SARAH MCBRIDE
May 22, 2007 11:33 a.m.
XM Satellite Radio Holdings Inc. experienced a second day of outages Tuesday due to software problems with one of its four satellites.
The company initially expected to fix the problem Monday evening, but later said that the problems wouldn't be resolved until midday Tuesday.
Problems arose from software glitches in its XM-3 satellite, built by Boeing Co., which went into service only about a year ago. "The problem occurred during the loading of software to a critical component of our satellite broadcast system, which resulted in a loss of one of our satellites," said a note on the company's Web site Tuesday.
It's considered unusual for such satellites, designed with redundant onboard systems and in-orbit backup from other satellites, to suffer any interruption in customer service.
XM, based in Washington, D.C., didn't estimate how many subscribers have been affected. The service is still running on the company's Web site.
XM-3, a Boeing 702 satellite model, is responsible for some signals over the East Coast as well as a repeater network that amplifies service in urban areas. It was launched earlier than XM initially projected to compensate for significant electrical-power problems aboard the first two Boeing-built XM satellites. Those satellites, built with defective solar arrays, will last for fewer years than planned.
Those early malfunctions resulted in a distracting and unsuccessful two-year arbitration proceeding to try to recover the full extent of the company's financial costs. A fourth Boeing-built satellite was launched last year.
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