| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 35031 | 30882 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 21 05:55 | 2024 Dec 21 09:51 |
| Time of closest approach (UTC) | 2024 Dec 27 15:07:55.827 |
| Minimum distance | 3.435 km |
| Height difference | -2.334 km |
| Relative speed | 13.510 km/s |
| Angle between velocity vectors | 131° |
| Geographic position | 73.8°S, 118.7°E |
| Height | 795 km |
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