| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | IRIDIUM 146 |
| Spacetrack catalog number | 30072 | 43254 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 19:52 | 2024 Dec 23 11:13 |
| Time of closest approach (UTC) | 2024 Dec 25 19:50:27.466 |
| Minimum distance | 2.017 km |
| Height difference | -2.012 km |
| Relative speed | 4.120 km/s |
| Angle between velocity vectors | 32° |
| Geographic position | 66.4°S, 114.8°E |
| Height | 806 km |
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