This excerpt taken from the SIRI 8-K filed Mar 21, 2007.
Sirius Satellite Radio Inc. for Minor Modification of License to Construct, Launch and Operate a Non-Geostationary Satellite Digital Audio Radio Service System, Order and Authorization, 16 FCC Rcd 5419 (2001).
compelling programming for subscribers. Currently, Sirius operates three non-geostationary satellites and a network of complementary terrestrial repeaters7 covering the contiguous United States.8 Sirius controls and communicates with its satellites from its uplink facility in New Jersey and through its earth stations in Panama and Ecuador. Sirius continues to monitor its infrastructure, regularly evaluating and implementing improvements in technology. Sirius has entered into an agreement with Space Systems/Loral, Inc. to design and construct a new geostationary satellite that will complement its existing in-orbit satellites. When launched, the resulting constellation configuration is expected to provide enhanced coverage and performance.