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USA 253

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USA 253 is classified as:


NORAD ID: 40099
Int'l Code: 2014-043A
Perigee: 36,780.6 km
Apogee: 36,833.2 km
Inclination: 0.6 °
Period: 1,488.2 minutes
Semi major axis: 43177 km
RCS: Unknown
Launch date: July 28, 2014
Source: United States (US)
Launch site: AIR FORCE EASTERN TEST RANGE (AFETR)

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   21153.45284580 -.00000152  00000-0  00000+0 0  9990
2 40099   0.6409  97.7311 0006081 346.9443 113.6331  0.96763297   275
Source of the keplerian elements: McCants