| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 35462 | 29948 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 21 21:54 | 2024 Dec 23 04:50 |
| Time of closest approach (UTC) | 2024 Dec 23 14:48:48.069 |
| Minimum distance | 3.396 km |
| Height difference | -3.244 km |
| Relative speed | 14.535 km/s |
| Angle between velocity vectors | 157° |
| Geographic position | 67.7°N, 11.5°E |
| Height | 875 km |
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