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USA 253

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USA 253 is classified as:

NORAD ID: 40099
Int'l Code: 2014-043A
Perigee: 35,758.7 km
Apogee: 35,776.7 km
Inclination: 0.1 °
Period: 1,434.8 minutes
Semi major axis: 42138 km
RCS: Unknown
Launch date: July 28, 2014
Source: United States (US)

USA 253 is a satellite that is part of Geosynchronous Space Situational Awareness Program (GSSAP). GSSAP satellites are a space-based capability operating in the near-geosynchronous orbit regime supporting U.S. Strategic Command space surveillance operations as a dedicated Space Surveillance Network (SSN) sensor.
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NASA's NSSDC Master Catalog

Two Line Element Set (TLE):
1 40099U 14043A   17079.99998843 0.00000000  00000-0  00000-0 0    00
2 40099   0.1320  98.8710 0002130 340.8740  38.4108  1.00364761    07
Source of the keplerian elements: McCants