| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | Iridium 920 |
| Spacetrack catalog number | 31944 | 24871 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 18 02:56 | 2024 Dec 23 04:07 |
| Time of closest approach (UTC) | 2024 Dec 28 17:03:35.886 |
| Minimum distance | 1.584 km |
| Height difference | 0.690 km |
| Relative speed | 14.434 km/s |
| Angle between velocity vectors | 149° |
| Geographic position | 77.8°S, 84.2°W |
| Height | 775 km |
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