| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 33841 | 31480 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 16:25 | 2024 Dec 21 15:52 |
| Time of closest approach (UTC) | 2024 Dec 28 07:45:33.859 |
| Minimum distance | 4.055 km |
| Height difference | 2.389 km |
| Relative speed | 6.326 km/s |
| Angle between velocity vectors | 50° |
| Geographic position | 59.8°N, 16.7°E |
| Height | 770 km |
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