| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 33986 | 35234 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 11:32 | 2024 Dec 20 01:06 |
| Time of closest approach (UTC) | 2024 Dec 29 22:08:01.264 |
| Minimum distance | 4.678 km |
| Height difference | -4.625 km |
| Relative speed | 14.783 km/s |
| Angle between velocity vectors | 164° |
| Geographic position | 58.3°N, 50.6°W |
| Height | 765 km |
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