About STEX
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 25489U 98055A 26064.17531678 .00000910 00000-0 22136-3 0 9998
2 25489 84.9826 37.2834 0010686 53.4212 306.7973 14.51740206448249
Epoch: Mar 5, 2026 •
Age: 34 hours
Current Status
Altitude 741.5 km
Velocity 7.48 km/s
Sub-Earth Point -51.64°S,
79.88°E
Launch Date Oct 3, 1998
Age 27.4 years
Type other
Technical Details
Classification Payload
Mass 671.00 kg
Dry Mass 510.00 kg
Total Mass 671.00 kg
Length 2.00 m
Diameter 1.20 m
Span 5.00 m
Shape Box + 2 Pan
Manufacturer LMA/DENV
Bus Type STEX
Phase Status In Orbit
Owner/State NROC/US
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