SS 1

operational
NORAD ID: 10529 Int'l Des: 1977-112 Owner: NRO/NRL Country: US
LEO

About SS 1

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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 26059.04833163 .00000566 00000-0 18215-3 0 9992
2 10529 63.3374 301.5693 0526158 160.9586 201.1982 13.90196467337028
Epoch: Feb 28, 2026 • Age: 14 hours

Current Status

Altitude 973.8 km
Velocity 7.35 km/s
Sub-Earth Point 52.38°N, 21.28°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

Large Constellations

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