| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 31444 | 34023 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 21 13:31 | 2024 Dec 22 23:26 |
| Time of closest approach (UTC) | 2024 Dec 27 20:42:56.617 |
| Minimum distance | 1.897 km |
| Height difference | 0.897 km |
| Relative speed | 10.876 km/s |
| Angle between velocity vectors | 94° |
| Geographic position | 72.2°S, 13.6°E |
| Height | 788 km |
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