| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 30829 | 33944 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 10:45 | 2024 Dec 22 17:52 |
| Time of closest approach (UTC) | 2024 Dec 26 09:46:54.084 |
| Minimum distance | 2.317 km |
| Height difference | -0.450 km |
| Relative speed | 13.082 km/s |
| Angle between velocity vectors | 124° |
| Geographic position | 74.1°S, 96.8°W |
| Height | 869 km |
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