| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 30606 | 35061 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 00:42 | 2024 Dec 21 18:07 |
| Time of closest approach (UTC) | 2024 Dec 27 18:51:49.923 |
| Minimum distance | 1.952 km |
| Height difference | 0.107 km |
| Relative speed | 12.971 km/s |
| Angle between velocity vectors | 118° |
| Geographic position | 74.1°N, 32.8°W |
| Height | 664 km |
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