About USA 74
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 21799U 91076C 26016.85969150 .00003746 00000-0 29482-3 0 9997
2 21799 63.2940 190.6227 0885732 70.3000 299.1338 13.59647675 83014
Epoch: Jan 16, 2026 •
Age: 15 hours
Current Status
Altitude 676.9 km
Velocity 7.71 km/s
Sub-Earth Point 42.61°N,
55.07°E
Launch Date Nov 8, 1991
Age 34.1 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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