| Primary satellite | Secondary satellite |
| Name | IRIDIUM 100 | deb Chang Zheng 4 |
| Spacetrack catalog number | 42956 | 20883 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:38 | 2024 Dec 22 21:57 |
| Time of closest approach (UTC) | 2024 Dec 28 01:03:59.081 |
| Minimum distance | 4.903 km |
| Height difference | -1.938 km |
| Relative speed | 11.761 km/s |
| Angle between velocity vectors | 104° |
| Geographic position | 81.3°S, 19.6°W |
| Height | 807 km |
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