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USA 55

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USA 55 is classified as:


NORAD ID: 20547
Int'l Code: 1990-028B
Perigee: 444.0 km
Apogee: 558.7 km
Inclination: 94.1 °
Period: 94.5 minutes
Semi major axis: 6872 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   17147.90717025 +.00000513 +00000-0 +20190-4 0  9993
2 20547 094.1012 117.9097 0083501 337.8798 021.8850 15.23864041496639
Source of the keplerian elements: AFSPC