| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 31444 | 35773 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 21 13:31 | 2024 Dec 22 06:14 |
| Time of closest approach (UTC) | 2024 Dec 27 09:28:41.036 |
| Minimum distance | 2.645 km |
| Height difference | -0.231 km |
| Relative speed | 4.212 km/s |
| Angle between velocity vectors | 33° |
| Geographic position | 40.1°S, 38.8°E |
| Height | 739 km |
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