About GPS IIF-4
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 39166U 13023A 26079.93481740 .00000018 00000-0 00000-0 0 9993
2 39166 54.5742 272.5668 0141869 50.1915 311.0525 2.00563969 94112
Epoch: Mar 20, 2026 •
Age: 40 hours
Current Status
Altitude 20090.6 km
Velocity 3.89 km/s
Sub-Earth Point 41.05°N,
17.59°E
Launch Date May 15, 2013
Age 12.8 years
Type navigation
Technical Details
Classification Payload
Mass 1630.00 kg
Dry Mass 1500.00 kg
Total Mass 1630.00 kg
Length 2.50 m
Diameter 1.80 m
Span 18.00 m
Shape Box + 2 Pan
Manufacturer BOES
Bus Type GPS IIF
Phase Status In Orbit
Owner/State AFSMC/US
Large Constellations
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