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USA 55

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USA 55 is classified as:


NORAD ID: 20547
Int'l Code: 1990-028B
Perigee: 444.8 km
Apogee: 557.1 km
Inclination: 94.1 °
Period: 94.5 minutes
Semi major axis: 6871 km
RCS: 0.1768 m2 (medium)
Launch date: April 5, 1990
Source: United States (US)
Launch site: AIR FORCE WESTERN TEST RANGE (AFWTR)
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NASA's NSSDC Master Catalog

Two Line Element Set (TLE):
1 20547U 90028B   17263.80625198 +.00000440 +00000-0 +17471-4 0  9997
2 20547 094.1076 181.4897 0081744 263.2840 095.9096 15.23984492514289
Source of the keplerian elements: AFSPC