| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 30606 | 37340 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 00:42 | 2024 Dec 20 07:12 |
| Time of closest approach (UTC) | 2024 Dec 27 10:24:03.898 |
| Minimum distance | 2.986 km |
| Height difference | 1.910 km |
| Relative speed | 14.847 km/s |
| Angle between velocity vectors | 171° |
| Geographic position | 31.0°N, 119.1°E |
| Height | 780 km |
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