| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 33841 | 32361 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 16:25 | 2024 Dec 22 01:27 |
| Time of closest approach (UTC) | 2024 Dec 26 10:38:27.617 |
| Minimum distance | 4.831 km |
| Height difference | -4.661 km |
| Relative speed | 14.841 km/s |
| Angle between velocity vectors | 166° |
| Geographic position | 57.9°N, 23.6°W |
| Height | 768 km |
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