| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 31179 | 53093 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 21 06:50 | 2024 Dec 22 17:27 |
| Time of closest approach (UTC) | 2024 Dec 25 00:08:17.909 |
| Minimum distance | 3.928 km |
| Height difference | -2.358 km |
| Relative speed | 14.443 km/s |
| Angle between velocity vectors | 149° |
| Geographic position | 71.8°S, 78.2°E |
| Height | 798 km |
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