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About USA 77
Group: 3 satellites
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Two-Line Element Set
1 21809U 91076E 26111.82277466 .00003695 00000-0 29872-3 0 9990
2 21809 63.2971 308.2759 0899638 73.5931 296.1981 13.56094094 96625
Epoch: Apr 21, 2026 •
Age: 6 hours
Current Status
Altitude 1484.7 km
Velocity 6.91 km/s
Sub-Earth Point -24.26°S,
99.35°W
Launch Date Nov 8, 1991
Age 34.4 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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