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About SBIRS GEO-4
Group: 3 satellites
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Two-Line Element Set
1 41937U 17004A 26104.11850185 .00000129 00000-0 00000+0 0 9999
2 41937 2.1229 41.3801 0002273 340.0584 244.4284 1.00272455 33951
Epoch: Apr 14, 2026 •
Age: 8 hours
Current Status
Altitude 35776.5 km
Velocity 3.08 km/s
Sub-Earth Point -0.32°S,
20.91°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
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