About USA-18
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 16631U 86014H 25323.57519700 .00008019 00000-0 47387-3 0 9995
2 16631 63.2929 259.0219 0779899 108.4413 260.2977 13.88043276315215
Epoch: Nov 19, 2025 •
Age: 10 hours
Current Status
Altitude 936.3 km
Velocity 7.39 km/s
Sub-Earth Point 12.46°N,
158.83°W
Launch Date Feb 9, 1986
Age 39.7 years
Type other
Technical Details
Classification Payload
Mass 200.00 kg
Dry Mass 200.00 kg
Total Mass 200.00 kg
Length 0.90 m
Diameter 0.40 m
Span 10.00 m
Shape Box + Ant
Manufacturer MM
Bus Type NOSS SSU
Phase Status In Orbit
Owner/State NRO/NRL/US
Large Constellations
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