| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 35789 | 36206 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 14:34 | 2024 Dec 19 08:30 |
| Time of closest approach (UTC) | 2024 Dec 28 17:09:30.853 |
| Minimum distance | 4.184 km |
| Height difference | -1.322 km |
| Relative speed | 14.798 km/s |
| Angle between velocity vectors | 168° |
| Geographic position | 49.5°S, 49.3°E |
| Height | 823 km |
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