Live Position
Loading 3D Globe...
About USA 59
Group: 3 satellites
Description loading...
Upcoming Passes
Passes for default location (London). Set your location on the main map for personalized predictions.
Altitude History
Loading altitude history...
No altitude history available
Two-Line Element Set
1 20641U 90050A 26107.44146840 .00000033 00000-0 00000-0 0 9990
2 20641 63.3907 117.0856 4056365 266.2457 47.8348 6.02595243 42671
Epoch: Apr 17, 2026 •
Age: 24 hours
Current Status
Altitude 8478.5 km
Velocity 4.74 km/s
Sub-Earth Point 35.45°N,
125.95°E
Launch Date Jun 8, 1990
Age 35.8 years
Type military
Technical Details
Classification Payload
Mass 3000.00 kg
Dry Mass 3000.00 kg
Total Mass 3000.00 kg
Length 3.00 m
Diameter 4.00 m
Span 4.00 m
Shape Cyl
Manufacturer NRL
Bus Type NOSS B
Phase Status Attached in Orbit
Owner/State NRO/NRL/US
Most Searched
Loading...