About TacSat-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 37818U 11052A 26016.57402050 .00002261 00000-0 78189-3 0 9991
2 37818 62.8259 223.4875 4636589 279.0962 33.0205 6.14742737315461
Epoch: Jan 16, 2026 •
Age: 26 hours
Current Status
Altitude 10111.3 km
Velocity 4.09 km/s
Sub-Earth Point 43.50°N,
23.64°E
Launch Date Sep 27, 2011
Age 14.3 years
Type other
Technical Details
Classification Payload
Mass 460.00 kg
Dry Mass 420.00 kg
Total Mass 460.00 kg
Length 3.00 m
Diameter 1.00 m
Span 10.00 m
Shape Box + 2 Pan + Cone + Dish
Manufacturer NRL/APL
Bus Type TS
Phase Status In Orbit
Owner/State NRL/US
Large Constellations
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