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    OPS 1920
            Launch Details
            
                
        
                    | Launched | 4 October 1966 | 
| Flight ended | – | 
| Status | Unknown | 
| Launch site | Air Force Western Test Range, California, USA | 
| Owner | United States | 
| NORAD ID | 2481 | 
| COSPAR ID | 1966-089A | 
| Observing | 
Current orbital elements
| Inclination | 89.841° | 
| Eccentricity | 0.00330 | 
| RA ascending node | 2.179 hr | 
| Argument perigee | 187.232° | 
| Mean anomaly | 172.806° | 
| Orbital period | 167.587 min | 
| Epoch of osculation | 01 Nov 2025, 15:37 | 
Derived Quantities
| Min Altitude | 3664.8 km | 
| Mean Altitude | 3698.0 km | 
| Peak Altitude | 3731.2 km | 
Orbital History
Drag the graphs below left or right to change the time range, or use your scroll wheel to zoom in or out.
Launched alongside
SECOR 8