About

USA 77

operational
NORAD ID: 21809 • Int'l Des: 1991-076 • Owner: NRO/NRL • Country: US
LEO
POV Track Ground

About USA 77

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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 21809U 91076E 25281.28239357 .00005154 00000-0 43631-3 0 9995
2 21809 63.2957 109.3074 0900303 69.8768 299.6767 13.54366765 70129
Epoch: Oct 8, 2025 • Age: 8 hours

Current Status

Altitude 1076.1 km
Velocity 7.31 km/s
Sub-Earth Point 11.88°N, 46.1°E
Launch Date Nov 8, 1991
Age 33.9 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
Data: planet4589.org

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