| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 38149 | 34818 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 16 17:49 | 2024 Dec 23 02:34 |
| Time of closest approach (UTC) | 2024 Dec 25 17:50:01.107 |
| Minimum distance | 0.467 km |
| Height difference | 0.241 km |
| Relative speed | 14.069 km/s |
| Angle between velocity vectors | 140° |
| Geographic position | 73.0°N, 27.1°W |
| Height | 777 km |
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