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 26103.23344991 .00003247 00000-0 23897-3 0 9997
2 20691 63.2971 26.9782 0882445 83.9162 286.1583 13.62267307 97457
Epoch: Apr 13, 2026 •
Age: 6 hours
Current Status
Altitude 1674.1 km
Velocity 6.73 km/s
Sub-Earth Point -56.42°S,
127.1°W
Launch Date Jun 8, 1990
Age 35.8 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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