| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 38157 | 34576 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 14:07 | 2024 Dec 22 07:23 |
| Time of closest approach (UTC) | 2024 Dec 28 04:08:17.301 |
| Minimum distance | 4.584 km |
| Height difference | 3.135 km |
| Relative speed | 14.598 km/s |
| Angle between velocity vectors | 152° |
| Geographic position | 71.6°N, 41.3°E |
| Height | 735 km |
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