About INMARSAT II F-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 21940U 92021B 26059.36098115 -.00000072 00000-0 00000+0 0 9994
2 21940 12.0569 16.2809 0005445 193.1463 355.8644 0.97942499 49586
Epoch: Feb 28, 2026 •
Age: 19 hours
Current Status
Altitude 36471.5 km
Velocity 3.05 km/s
Sub-Earth Point -4.88°S,
85.81°W
Launch Date Apr 15, 1992
Age 33.8 years
Type communications
Technical Details
Classification Payload
Mass 1310.00 kg
Dry Mass 624.00 kg
Total Mass 1310.00 kg
Length 2.40 m
Diameter 1.50 m
Span 14.90 m
Shape Box + 2 Pan
Manufacturer BAES
Bus Type Eurostar 1000
Phase Status Renamed
Owner/State INMAR/I-INM
Large Constellations
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