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    OAO 3
            Launch Details
            
                
        
                    | Launched | 20 August 1972 | 
| Flight ended | – | 
| Status | Unknown | 
| Category | Assorted bright | 
| Launch site | Air Force Eastern Test Range, Florida, USA | 
| Owner | United States | 
| NORAD ID | 6153 | 
| COSPAR ID | 1972-065A | 
| Alternative names | COPERNICUS | 
| Observing | 
Current orbital elements
| Inclination | 35.007° | 
| Eccentricity | 0.00067 | 
| RA ascending node | 21.358 hr | 
| Argument perigee | 178.539° | 
| Mean anomaly | 279.202° | 
| Orbital period | 98.640 min | 
| Epoch of osculation | 30 Oct 2025, 06:06 | 
Derived Quantities
| Min Altitude | 696.1 km | 
| Mean Altitude | 700.8 km | 
| Peak Altitude | 705.5 km | 
Orbital History
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