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 26055.54153005 .00009053 00000-0 54311-3 0 9991
2 16631 63.2953 346.4297 0767897 110.3060 258.2170 13.90057349328680
Epoch: Feb 24, 2026 •
Age: 13 hours
Current Status
Altitude 1293.1 km
Velocity 7.04 km/s
Sub-Earth Point -52.06°S,
17.36°E
Launch Date Feb 9, 1986
Age 40 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
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