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 26056.24588523 .00002626 00000-0 19806-3 0 9991
2 20691 63.2945 153.5965 0883100 83.0082 287.0450 13.61876998 91053
Epoch: Feb 25, 2026 •
Age: 10 hours
Current Status
Altitude 1587.9 km
Velocity 6.81 km/s
Sub-Earth Point -54.38°S,
70.57°E
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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