About USA 81
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 21949U 92023A 25324.18981075 .00000221 00000-0 74584-4 0 9993
2 21949 85.0102 194.5792 0002412 70.0221 290.1231 14.32315625 79119
Epoch: Nov 20, 2025 •
Age: 8 hours
Current Status
Altitude 802.9 km
Velocity 7.45 km/s
Sub-Earth Point -46.81°S,
61.52°W
Launch Date Apr 25, 1992
Age 33.5 years
Type military
Technical Details
Classification Payload
Mass 1450.00 kg
Dry Mass 1200.00 kg
Total Mass 1450.00 kg
Length 0.50 m
Diameter 1.00 m
Span 10.00 m
Shape Cyl + Ant
Manufacturer LMSC
Bus Type NRO-T2
Phase Status In Orbit
Owner/State NRO/US
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