About OPS 8781
Group: 3 satellites
Description loading...
Live Position
Loading 3D Globe...
Upcoming Passes
Altitude History
Altitude vs Time
uPlot chart will show altitude changes over time
Two-Line Element Set
1 10502U 77112A 26009.66878121 .00002341 00000-0 49737-3 0 9995
2 10502 63.3272 195.6058 0486100 159.9649 202.1249 14.06994441 85767
Epoch: Jan 9, 2026 •
Age: 36 hours
Current Status
Altitude 737.4 km
Velocity 7.57 km/s
Sub-Earth Point 63.43°N,
108.44°E
Launch Date Dec 8, 1977
Age 48 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
Large Constellations
Loading constellations...