| Primary satellite | Secondary satellite |
| Name | Iridium Sim1 | CZ-4C R/B |
| Spacetrack catalog number | 24925 | 43462 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 03:46 | 2024 Dec 22 16:46 |
| Time of closest approach (UTC) | 2024 Dec 25 10:28:46.218 |
| Minimum distance | 4.219 km |
| Height difference | 1.440 km |
| Relative speed | 15.056 km/s |
| Angle between velocity vectors | 173° |
| Geographic position | 50.0°S, 40.4°W |
| Height | 629 km |
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