| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 30218 | 34008 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 03:53 | 2024 Dec 23 05:25 |
| Time of closest approach (UTC) | 2024 Dec 28 23:58:40.961 |
| Minimum distance | 4.299 km |
| Height difference | -1.005 km |
| Relative speed | 14.856 km/s |
| Angle between velocity vectors | 168° |
| Geographic position | 53.9°N, 173.0°E |
| Height | 792 km |
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