| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 36203 | 34965 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 18 23:24 | 2024 Dec 19 14:28 |
| Time of closest approach (UTC) | 2024 Dec 24 11:35:38.433 |
| Minimum distance | 4.613 km |
| Height difference | 2.306 km |
| Relative speed | 14.897 km/s |
| Angle between velocity vectors | 171° |
| Geographic position | 37.4°S, 5.7°W |
| Height | 737 km |
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