| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 33905 | 30417 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 18:00 | 2024 Dec 22 22:02 |
| Time of closest approach (UTC) | 2024 Dec 25 14:47:50.777 |
| Minimum distance | 2.206 km |
| Height difference | 1.791 km |
| Relative speed | 12.109 km/s |
| Angle between velocity vectors | 109° |
| Geographic position | 73.5°N, 7.0°E |
| Height | 815 km |
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