| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 33748 | 34024 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 21 14:08 | 2024 Dec 22 20:41 |
| Time of closest approach (UTC) | 2024 Dec 26 22:51:13.772 |
| Minimum distance | 3.519 km |
| Height difference | -1.982 km |
| Relative speed | 14.868 km/s |
| Angle between velocity vectors | 169° |
| Geographic position | 45.3°S, 143.2°E |
| Height | 788 km |
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