| Primary satellite | Secondary satellite |
| Name | IRIDIUM 100 | FENGYUN 1C DEB |
| Spacetrack catalog number | 42956 | 30403 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:38 | 2024 Dec 23 03:03 |
| Time of closest approach (UTC) | 2024 Dec 25 22:38:45.025 |
| Minimum distance | 3.612 km |
| Height difference | 0.323 km |
| Relative speed | 14.907 km/s |
| Angle between velocity vectors | 173° |
| Geographic position | 41.9°S, 1.3°W |
| Height | 795 km |
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