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 26101.27356783 .00005437 00000-0 11496-3 0 9991
2 20547 94.0871 105.7888 0057583 33.8579 326.6330 15.43446709991565
Epoch: Apr 11, 2026 •
Age: 6 hours
Current Status
Altitude 401.2 km
Velocity 7.69 km/s
Sub-Earth Point 32.86°N,
69.6°E
Launch Date Apr 5, 1990
Age 36 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...