| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | COSMOS 2251 DEB |
| Spacetrack catalog number | 38147 | 38068 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 20 18:36 | 2024 Dec 20 02:43 |
| Time of closest approach (UTC) | 2024 Dec 24 23:26:03.055 |
| Minimum distance | 4.765 km |
| Height difference | 3.771 km |
| Relative speed | 14.089 km/s |
| Angle between velocity vectors | 142° |
| Geographic position | 72.9°S, 83.1°E |
| Height | 809 km |
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