Find USA 55
NORAD ID: 20547 • Int'l Des: 1990-028 • Owner: DARPA/USN • Country: US • operational
LEOCIRCULARRETROGRADE
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About USA 55
USA 55 (NORAD 20547) is a satellite launched Apr 5, 1990 by DARPA/USN of US. It operates in LEO, CIRCULAR, RETROGRADE orbit with a mass of 68.00 kg.
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Y: Altitude (km)
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Two-Line Element Set
1 20547U 90028B 26191.30335051 .00004998 00000-0 10255-3 0 9992
2 20547 94.0890 156.4785 0056957 46.9664 313.6342 15.44363902 5434
Epoch: Jul 10, 2026 •
Age: 17 hours
Current Status
Altitude 491.5 km
Apogee / Perigee N/A
Velocity 7.60 km/s
Sub-Earth Point -50.39°S,
45.67°E
Launch Date Apr 5, 1990
Age 36.2 years
Type military
Technical Details
Classification Payload
Mass 68.00 kg
Dry Mass 68.00 kg
Total Mass 68.00 kg
Length 0.40 m
Diameter 0.40 m
Span 0.40 m
Shape Poly
Manufacturer DSI
Bus Type GLOMR
Phase Status In Orbit
Owner/State DARPA/USN/US
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