| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 36255 | 40233 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 17 10:45 | 2024 Dec 22 13:15 |
| Time of closest approach (UTC) | 2024 Dec 23 22:23:36.551 |
| Minimum distance | 2.079 km |
| Height difference | -1.342 km |
| Relative speed | 14.929 km/s |
| Angle between velocity vectors | 173° |
| Geographic position | 19.7°N, 4.9°W |
| Height | 752 km |
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