Live Position
Loading 3D Globe...
About SBIRS GEO-4
Group: 3 satellites
Description loading...
Upcoming Passes
Passes for default location (London). Set your location on the main map for personalized predictions.
Altitude History
Loading altitude history...
No altitude history available
Two-Line Element Set
1 41937U 17004A 26110.62061525 .00000122 00000-0 00000-0 0 9998
2 41937 2.1362 41.6087 0002157 337.9520 73.4679 1.00271281 34027
Epoch: Apr 20, 2026 •
Age: 9 hours
Current Status
Altitude 35793.8 km
Velocity 3.07 km/s
Sub-Earth Point -0.48°S,
20.88°E
Launch Date Jan 21, 2017
Age 9.2 years
Type military
Technical Details
Classification Payload
Mass 4500.00 kg
Dry Mass 2500.00 kg
Total Mass 4500.00 kg
Length 6.00 m
Diameter 2.50 m
Span 25.00 m
Shape Box + 2 Pan
Manufacturer LMSS
Bus Type A2100
Phase Status In Orbit
Owner/State AFSPC/US
Most Searched
Loading...