| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 33905 | 30557 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 18:00 | 2024 Dec 22 19:52 |
| Time of closest approach (UTC) | 2024 Dec 27 23:24:33.380 |
| Minimum distance | 3.348 km |
| Height difference | -3.281 km |
| Relative speed | 14.854 km/s |
| Angle between velocity vectors | 173° |
| Geographic position | 13.4°N, 158.9°E |
| Height | 825 km |
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