| Primary satellite | Secondary satellite |
| Name | IRIDIUM 100 | FENGYUN 1C DEB |
| Spacetrack catalog number | 42956 | 31625 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:38 | 2024 Dec 22 03:03 |
| Time of closest approach (UTC) | 2024 Dec 27 07:20:12.899 |
| Minimum distance | 2.928 km |
| Height difference | -0.258 km |
| Relative speed | 14.860 km/s |
| Angle between velocity vectors | 172° |
| Geographic position | 50.2°N, 47.5°E |
| Height | 785 km |
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