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    PRISM
            Launch Details
            
                
        
                    | Launched | 22 January 2009 | 
| Flight ended | 15 April 2025 | 
| Status | Decayed | 
| Launch site | Tanegashima Space Center, Japan | 
| Owner | Japan | 
| NORAD ID | 33493 | 
| COSPAR ID | 2009-002B | 
| Alternative names | HITOMI | 
| Observing | 
Current orbital elements
| Inclination | 98.126° | 
| Eccentricity | 0.00149 | 
| RA ascending node | 13.019 hr | 
| Argument perigee | 274.574° | 
| Mean anomaly | 85.385° | 
| Orbital period | 88.062 min | 
| Epoch of osculation | 15 Apr 2025, 21:05 | 
Derived Quantities
| Min Altitude | 175.9 km | 
| Mean Altitude | 185.7 km | 
| Peak Altitude | 195.5 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.