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    M-3H R/B
            Launch Details
            
                
        
                    | Launched | 15 September 1978 | 
| Flight ended | – | 
| Status | Unknown | 
| Launch site | Uchinoura Space Center (Fomerly Kagoshima Space Center-University of Tokyo, Japan) | 
| Owner | Japan | 
| NORAD ID | 11028 | 
| COSPAR ID | 1978-087B | 
| Observing | 
Current orbital elements
| Inclination | 31.239° | 
| Eccentricity | 0.40429 | 
| RA ascending node | 3.023 hr | 
| Argument perigee | 39.949° | 
| Mean anomaly | 343.771° | 
| Orbital period | 195.376 min | 
| Epoch of osculation | 29 Oct 2025, 12:30 |