USA 55

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10-day predictions
USA 55 is classified as:

• Military

NORAD ID: 20547
Int'l Code: 1990-028B
Perigee: 424.7 km
Apogee: 523.9 km
Inclination: 94.1 °
Period: 93.9 minutes
Semi major axis: 6845 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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1 20547U 90028B   24164.07664402  .00007685  00000-0  22323-3 0  9994
2 20547  94.1095  91.8592 0072444  63.6925 297.1742 15.32897571888299

Source of the keplerian elements: AFSPC