| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 30028 | 34990 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 22:05 | 2024 Dec 18 22:11 |
| Time of closest approach (UTC) | 2024 Dec 29 09:04:33.408 |
| Minimum distance | 3.670 km |
| Height difference | 3.641 km |
| Relative speed | 14.872 km/s |
| Angle between velocity vectors | 171° |
| Geographic position | 23.0°S, 129.0°E |
| Height | 766 km |
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