About USA 59
Group: 3 satellites
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Live Position
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Upcoming Passes
Altitude History
Altitude vs Time
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Two-Line Element Set
1 20641U 90050A 25280.10505524 .00000016 00000-0 00000-0 0 9993
2 20641 63.3823 225.6898 4052011 266.2473 47.8691 6.02585163 31086
Epoch: Oct 7, 2025 •
Age: 1144 hours
Current Status
Altitude 8478.7 km
Velocity 4.74 km/s
Sub-Earth Point 35.42°N,
114.75°W
Launch Date Jun 8, 1990
Age 35.4 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
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