| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 33986 | 29969 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 11:32 | 2024 Dec 23 05:15 |
| Time of closest approach (UTC) | 2024 Dec 25 12:06:37.391 |
| Minimum distance | 4.834 km |
| Height difference | 4.517 km |
| Relative speed | 14.659 km/s |
| Angle between velocity vectors | 160° |
| Geographic position | 65.9°S, 179.1°E |
| Height | 805 km |
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