About USA 55
Group: 3 satellites
Description loading...
Live Position
Loading 3D Globe...
Upcoming Passes
Altitude History
Altitude vs Time
uPlot chart will show altitude changes over time
Two-Line Element Set
1 20547U 90028B 25322.18440558 .00007494 00000-0 16960-3 0 9995
2 20547 94.1019 24.7639 0056883 222.9449 136.7357 15.41462620969352
Epoch: Nov 18, 2025 •
Age: 18 hours
Current Status
Altitude 456.9 km
Velocity 7.64 km/s
Sub-Earth Point -63.33°S,
7.57°W
Launch Date Apr 5, 1990
Age 35.6 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
Large Constellations
Loading constellations...