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Satellite Name: XM 4 (XM Blues)
Status: moving
Position: 76° W (76.2° W)
NORAD: 29520
Cospar number: 2006-049A
Operator: XM Satellite Radio Holdings Inc./Sirius Satellite Radio
Launch date: 30-Oct-2006
Launch site: Sea Launch (Odyssey platform)
Launch vehicle: Zenit 3SL
Launch mass (kg): 5193
Dry mass (kg):  
Manufacturer: Boeing (Hughes)
Model (bus): BSS-702
Orbit: GEO
Expected lifetime: 15 yrs.
Call sign: S2616
Beacon(s): 2340.2, 2340.7,2333.5, 2342.0 RHCP
2 active X/S-band transponders, each with 16 active (6 spare) 228-w TWTAs to provide state-of-the-art digital audio radio programming directly to cars, homes and portable radios coast to coast.
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