About ATEX
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 25615U 98055C 26013.72865477 .00000295 00000-0 75275-4 0 9990
2 25615 84.9851 99.6256 0007573 9.1810 350.9528 14.47126223351692
Epoch: Jan 13, 2026 •
Age: 15 hours
Current Status
Altitude 735.8 km
Velocity 7.49 km/s
Sub-Earth Point 38.17°N,
139.62°W
Launch Date Oct 3, 1998
Age 27.2 years
Type other
Technical Details
Classification Payload
Mass 29.00 kg
Dry Mass 29.00 kg
Total Mass 29.00 kg
Length 0.80 m
Diameter 0.10 m
Span 0.80 m
Shape Box + Tether
Manufacturer NRL
Bus Type ATEX
Phase Status In Orbit
Owner/State NROC/NRL/US
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