| Primary satellite | Secondary satellite |
| Name | IRIDIUM 100 | FENGYUN 1C DEB |
| Spacetrack catalog number | 42956 | 29773 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:38 | 2024 Dec 22 09:36 |
| Time of closest approach (UTC) | 2024 Dec 27 05:02:54.793 |
| Minimum distance | 3.401 km |
| Height difference | 1.545 km |
| Relative speed | 12.128 km/s |
| Angle between velocity vectors | 109° |
| Geographic position | 81.1°S, 54.1°E |
| Height | 807 km |
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