| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 35234 | 33760 |
| Radar cross section | small | medium |
| Epoch of two-line elements (UTC) | 2024 Dec 20 01:06 | 2024 Dec 23 01:33 |
| Time of closest approach (UTC) | 2024 Dec 28 21:47:23.671 |
| Minimum distance | 2.325 km |
| Height difference | 2.162 km |
| Relative speed | 14.820 km/s |
| Angle between velocity vectors | 167° |
| Geographic position | 52.2°N, 158.3°E |
| Height | 768 km |
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