| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 38789 | 35645 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 21:12 | 2024 Dec 22 11:25 |
| Time of closest approach (UTC) | 2024 Dec 25 18:10:26.590 |
| Minimum distance | 4.049 km |
| Height difference | 3.769 km |
| Relative speed | 14.562 km/s |
| Angle between velocity vectors | 158° |
| Geographic position | 67.2°N, 59.4°E |
| Height | 824 km |
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