| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 33748 | 34024 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 21 14:08 | 2024 Dec 22 20:41 |
| Time of closest approach (UTC) | 2024 Dec 26 12:47:38.183 |
| Minimum distance | 2.580 km |
| Height difference | -1.430 km |
| Relative speed | 14.853 km/s |
| Angle between velocity vectors | 168° |
| Geographic position | 49.2°S, 67.2°W |
| Height | 791 km |
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