| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 30284 | 34910 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 03:15 | 2024 Dec 23 12:56 |
| Time of closest approach (UTC) | 2024 Dec 28 14:54:35.818 |
| Minimum distance | 5.589 km |
| Height difference | -1.622 km |
| Relative speed | 13.962 km/s |
| Angle between velocity vectors | 135° |
| Geographic position | 73.6°N, 74.2°E |
| Height | 797 km |
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