About

SS 1

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

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 25277.43594353 .00002089 00000-0 53790-3 0 9990
2 10529 63.3381 351.1708 0542468 158.8603 203.5835 13.89893921316647
Epoch: Oct 4, 2025 • Age: 10 hours

Current Status

Altitude 987.9 km
Velocity 7.34 km/s
Sub-Earth Point -60.79°S, 84.78°W
Launch Date Dec 8, 1977
Age 47.8 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
Data: planet4589.org

Large Constellations

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