| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 31068 | 34454 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 17 17:10 | 2024 Dec 22 16:11 |
| Time of closest approach (UTC) | 2024 Dec 29 03:56:39.002 |
| Minimum distance | 1.890 km |
| Height difference | 1.867 km |
| Relative speed | 14.639 km/s |
| Angle between velocity vectors | 156° |
| Geographic position | 68.5°N, 175.8°E |
| Height | 785 km |
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