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USA 176

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USA 176 is classified as:


NORAD ID: 28158
Int'l Code: 2004-004A
Perigee: 35,789.8 km
Apogee: 35,796.9 km
Inclination: 9.5 °
Period: 1,436.1 minutes
Semi major axis: 42164 km
RCS: Unknown
Launch date: February 14, 2004
Source: United States (US)
Launch site: AIR FORCE EASTERN TEST RANGE (AFETR)

Infrared sensors to detect heat from missile and booster plumes against earth's background; detection capability of smaller missiles; improved warning of attack by short-range missiles against U.S. and allied forces.
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NASA's NSSDC Master Catalog

Two Line Element Set (TLE):
1 28158U 04004A   21101.81785472 -.00000222  00000-0  00000-0 0  9996
2 28158   9.5419  37.6132 0000847  70.6838 113.7511  1.00273277 13953
Source of the keplerian elements: McCants