About USA 61
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 20691U 90050C 26057.27387064 .00002656 00000-0 20012-3 0 9996
2 20691 63.2947 150.8275 0883089 83.0267 287.0270 13.61883296 91194
Epoch: Feb 26, 2026 •
Age: 12 hours
Current Status
Altitude 1705.4 km
Velocity 6.71 km/s
Sub-Earth Point -62.12°S,
31.54°W
Launch Date Jun 8, 1990
Age 35.7 years
Type military
Technical Details
Classification Payload
Mass 400.00 kg
Dry Mass 400.00 kg
Total Mass 400.00 kg
Length 1.00 m
Diameter 1.00 m
Span 10.00 m
Shape Box + Ant
Manufacturer NRL
Bus Type NOSS B SSU
Phase Status In Orbit
Owner/State NRO/NRL/US
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