About SS 1
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 10529U 77112D 26058.40094309 .00000543 00000-0 17614-3 0 9999
2 10529 63.3376 303.3780 0526217 160.9512 201.2066 13.90195551336938
Epoch: Feb 27, 2026 •
Age: 22 hours
Current Status
Altitude 1249.8 km
Velocity 7.08 km/s
Sub-Earth Point -47.11°S,
6.5°W
Launch Date Dec 8, 1977
Age 48.2 years
Type other
Technical Details
Classification Payload
Mass 200.00 kg
Dry Mass 200.00 kg
Total Mass 200.00 kg
Length 0.90 m
Diameter 0.40 m
Span 10.00 m
Shape Box + Ant
Manufacturer NRL
Bus Type NOSS SSU
Phase Status In Orbit
Owner/State NRO/NRL/US
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