USA 81

operational
NORAD ID: 21949 Int'l Des: 1992-023 Owner: NRO Country: US
LEOCIRCULARPOLAR

About USA 81

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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 26059.15814328 .00000179 00000-0 59026-4 0 9998
2 21949 85.0103 136.9388 0002709 85.6704 274.4798 14.32364231 93428
Epoch: Feb 28, 2026 • Age: 21 hours

Current Status

Altitude 792.9 km
Velocity 7.46 km/s
Sub-Earth Point 61.74°N, 168.12°W
Launch Date Apr 25, 1992
Age 33.8 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

Large Constellations

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