| Primary satellite | Secondary satellite |
| Name | IRIDIUM 170 | FENGYUN 1C DEB |
| Spacetrack catalog number | 43930 | 30840 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 14:49 | 2024 Dec 23 00:44 |
| Time of closest approach (UTC) | 2024 Dec 26 19:50:33.734 |
| Minimum distance | 1.841 km |
| Height difference | -1.839 km |
| Relative speed | 14.853 km/s |
| Angle between velocity vectors | 160° |
| Geographic position | 75.6°N, 162.0°W |
| Height | 665 km |
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