| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 30382 | 35759 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:45 | 2024 Dec 20 06:27 |
| Time of closest approach (UTC) | 2024 Dec 24 08:29:36.711 |
| Minimum distance | 3.827 km |
| Height difference | -3.024 km |
| Relative speed | 13.765 km/s |
| Angle between velocity vectors | 133° |
| Geographic position | 73.8°S, 147.5°W |
| Height | 738 km |
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