| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 33905 | 30696 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 18:00 | 2024 Dec 23 03:24 |
| Time of closest approach (UTC) | 2024 Dec 29 08:36:50.827 |
| Minimum distance | 1.633 km |
| Height difference | -1.027 km |
| Relative speed | 14.786 km/s |
| Angle between velocity vectors | 168° |
| Geographic position | 46.7°S, 4.7°W |
| Height | 814 km |
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