| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 36255 | 34431 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 17 10:45 | 2024 Dec 23 05:58 |
| Time of closest approach (UTC) | 2024 Dec 27 10:32:04.571 |
| Minimum distance | 3.702 km |
| Height difference | 3.631 km |
| Relative speed | 14.483 km/s |
| Angle between velocity vectors | 156° |
| Geographic position | 70.0°S, 142.9°E |
| Height | 847 km |
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