| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 35462 | 36710 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 21 21:54 | 2024 Dec 21 09:18 |
| Time of closest approach (UTC) | 2024 Dec 24 10:05:16.588 |
| Minimum distance | 3.453 km |
| Height difference | 0.843 km |
| Relative speed | 13.850 km/s |
| Angle between velocity vectors | 136° |
| Geographic position | 73.5°S, 161.6°W |
| Height | 786 km |
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