About USA 31
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 19458U 88077A 26018.46747052 -.00000957 00000-0 -15523-1 0 9999
2 19458 27.3177 53.4814 7300279 109.8246 336.9653 2.00804635 12319
Epoch: Jan 18, 2026 •
Age: 15 hours
Current Status
Altitude 25895.1 km
Velocity 3.11 km/s
Sub-Earth Point -26.63°S,
158.47°E
Launch Date Sep 2, 1988
Age 37.3 years
Type military
Technical Details
Classification Payload
Mass 1000.00 kg
Dry Mass 900.00 kg
Total Mass 1000.00 kg
Length 6.00 m
Diameter 2.50 m
Span 30.00 m
Shape Box + 2 Pan + Dish
Manufacturer TRW
Bus Type Vortex
Phase Status In Orbit
Owner/State NRO/SAFSP/US
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