| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 30606 | 35071 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 00:42 | 2024 Dec 21 04:34 |
| Time of closest approach (UTC) | 2024 Dec 24 06:49:31.286 |
| Minimum distance | 4.354 km |
| Height difference | -4.231 km |
| Relative speed | 14.981 km/s |
| Angle between velocity vectors | 161° |
| Geographic position | 63.1°N, 13.9°E |
| Height | 600 km |
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