| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 34885 | 32224 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 20:12 | 2024 Dec 21 18:19 |
| Time of closest approach (UTC) | 2024 Dec 24 10:17:09.850 |
| Minimum distance | 2.347 km |
| Height difference | -1.180 km |
| Relative speed | 14.835 km/s |
| Angle between velocity vectors | 164° |
| Geographic position | 61.6°N, 27.4°E |
| Height | 752 km |
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