| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 33842 | 30771 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 11:43 | 2024 Dec 22 20:31 |
| Time of closest approach (UTC) | 2024 Dec 29 21:39:13.776 |
| Minimum distance | 3.399 km |
| Height difference | 0.117 km |
| Relative speed | 14.861 km/s |
| Angle between velocity vectors | 172° |
| Geographic position | 27.1°N, 107.2°W |
| Height | 790 km |
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