| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 29784 | 35902 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 17:28 | 2024 Dec 22 03:22 |
| Time of closest approach (UTC) | 2024 Dec 28 08:08:19.322 |
| Minimum distance | 4.586 km |
| Height difference | -1.307 km |
| Relative speed | 12.872 km/s |
| Angle between velocity vectors | 120° |
| Geographic position | 74.0°N, 14.1°E |
| Height | 846 km |
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