| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 38001 | 30247 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 19 14:25 | 2024 Dec 22 16:24 |
| Time of closest approach (UTC) | 2024 Dec 25 07:44:06.721 |
| Minimum distance | 4.795 km |
| Height difference | -1.078 km |
| Relative speed | 14.827 km/s |
| Angle between velocity vectors | 160° |
| Geographic position | 64.2°N, 37.8°E |
| Height | 692 km |
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