| Primary satellite | Secondary satellite |
| Name | IRIDIUM 122 | FENGYUN 1C DEB |
| Spacetrack catalog number | 42957 | 41831 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 03:33 | 2024 Dec 23 03:35 |
| Time of closest approach (UTC) | 2024 Dec 28 02:34:10.938 |
| Minimum distance | 3.989 km |
| Height difference | 1.893 km |
| Relative speed | 14.934 km/s |
| Angle between velocity vectors | 174° |
| Geographic position | 28.8°N, 115.5°E |
| Height | 780 km |
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