| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 40792 | 31201 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 08:02 | 2024 Dec 22 12:43 |
| Time of closest approach (UTC) | 2024 Dec 29 05:03:31.999 |
| Minimum distance | 3.374 km |
| Height difference | -1.654 km |
| Relative speed | 14.656 km/s |
| Angle between velocity vectors | 153° |
| Geographic position | 70.3°S, 56.0°E |
| Height | 706 km |
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