About NAVSTAR 77 (USA 289)
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 43873U 18109A 25252.04825485 .00000041 00000-0 00000-0 0 9991
2 43873 55.5081 103.2859 0035094 194.6312 337.4759 2.00573779 49434
Epoch: Sep 9, 2025 •
Age: 29 hours
Current Status
Altitude 20255.4 km
Velocity 3.86 km/s
Sub-Earth Point -23.21°S,
0.9°E
Launch Date Dec 23, 2018
Age 6.7 years
Type positioning
Technical Details
Classification Payload
Mass 4400.00 kg
Dry Mass 2160.00 kg
Total Mass 4400.00 kg
Length 3.40 m
Diameter 1.80 m
Span 14.00 m
Shape Box + 2 pan
Manufacturer LMSSD
Bus Type A2100
Phase Status In Orbit
Owner/State AFSMC/US
Large Constellations
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