| Primary satellite | Secondary satellite |
| Name | IRIDIUM 122 | FENGYUN 1C DEB |
| Spacetrack catalog number | 42957 | 29935 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 03:33 | 2024 Dec 23 03:59 |
| Time of closest approach (UTC) | 2024 Dec 24 02:52:47.196 |
| Minimum distance | 2.058 km |
| Height difference | -0.164 km |
| Relative speed | 14.937 km/s |
| Angle between velocity vectors | 175° |
| Geographic position | 24.4°S, 112.9°E |
| Height | 787 km |
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