| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 34022 | 31826 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 00:37 | 2024 Dec 22 11:12 |
| Time of closest approach (UTC) | 2024 Dec 28 07:19:51.495 |
| Minimum distance | 3.546 km |
| Height difference | 3.155 km |
| Relative speed | 14.785 km/s |
| Angle between velocity vectors | 163° |
| Geographic position | 62.3°N, 134.3°E |
| Height | 784 km |
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