XM-4

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XM-4 is classified as:

• Geostationary
• TV

NORAD ID: 29520
Int'l Code: 2006-049A
Perigee: 35,792.6 km
Apogee: 35,794.7 km
Inclination: 0.0 °
Period: 1,436.1 minutes
Semi major axis: 42164 km
RCS: 15.8489 m² (large)
Launch date: October 30, 2006
Source: United States (US)
Launch site: SEA LAUNCH (SEAL)

XM 4 is an American geostationary satellite that was launched by a Zenit 3SL rocket from the floating platform, Odyssey parked on the equatorial Pacific ocean at 154° W longitude, at 23:49 UT on 30 October 2006. The 5.2 tonne (with fuel) craft carries an 18 kW transponder to provide S-band Digital Audio Radio Service (DARS) to homes and automobiles in North America, after parking over 115° W longitude.

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1 29520U 06049A   18319.58631903 -.00000020 +00000-0 +00000-0 0  9997
2 29520 000.0114 263.5773 0000253 042.0045 204.8326 01.00272115023700

Source of the keplerian elements: AFSPC