| Primary satellite | Secondary satellite |
| Name | SHIYUAN 3 (SY-3) | IRIDIUM 135 |
| Spacetrack catalog number | 33433 | 43070 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 02:19 | 2024 Dec 23 00:38 |
| Time of closest approach (UTC) | 2024 Dec 26 03:40:30.993 |
| Minimum distance | 3.218 km |
| Height difference | -2.814 km |
| Relative speed | 14.782 km/s |
| Angle between velocity vectors | 165° |
| Geographic position | 68.8°S, 27.4°E |
| Height | 808 km |
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