| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 33905 | 30921 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 18:00 | 2024 Dec 22 19:17 |
| Time of closest approach (UTC) | 2024 Dec 27 15:16:17.283 |
| Minimum distance | 4.825 km |
| Height difference | -4.774 km |
| Relative speed | 14.734 km/s |
| Angle between velocity vectors | 164° |
| Geographic position | 60.1°N, 51.9°W |
| Height | 823 km |
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