| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 31357 | 34314 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 14:11 | 2024 Dec 23 14:32 |
| Time of closest approach (UTC) | 2024 Dec 25 07:00:52.075 |
| Minimum distance | 4.170 km |
| Height difference | -2.445 km |
| Relative speed | 14.903 km/s |
| Angle between velocity vectors | 172° |
| Geographic position | 14.8°S, 12.9°E |
| Height | 807 km |
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