| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 31914 | 37988 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 23:38 | 2024 Dec 20 23:13 |
| Time of closest approach (UTC) | 2024 Dec 27 18:00:32.791 |
| Minimum distance | 0.870 km |
| Height difference | -0.198 km |
| Relative speed | 14.520 km/s |
| Angle between velocity vectors | 147° |
| Geographic position | 72.3°N, 33.6°E |
| Height | 652 km |
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