About OPS 8781
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 10502U 77112A 25327.40279182 .00000874 00000-0 20126-3 0 9991
2 10502 63.3282 331.3388 0491388 159.2123 202.9712 14.06875098 79118
Epoch: Nov 23, 2025 •
Age: 20 hours
Current Status
Altitude 515.2 km
Velocity 7.79 km/s
Sub-Earth Point 18.15°N,
1.5°W
Launch Date Dec 8, 1977
Age 47.9 years
Type other
Technical Details
Classification Payload
Mass 559.00 kg
Dry Mass 559.00 kg
Total Mass 590.00 kg
Length 1.60 m
Diameter 1.50 m
Span 2.70 m
Shape Box + Ant
Manufacturer NRL
Bus Type NOSS MSD
Phase Status Attached in Orbit
Owner/State NRO/NRL/US
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