| Primary satellite | Secondary satellite |
| Name | SHIYUAN | Iridium 28 |
| Spacetrack catalog number | 37931 | 24948 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 01:02 | 2024 Dec 22 16:40 |
| Time of closest approach (UTC) | 2024 Dec 24 20:00:23.223 |
| Minimum distance | 4.364 km |
| Height difference | -4.312 km |
| Relative speed | 14.466 km/s |
| Angle between velocity vectors | 152° |
| Geographic position | 77.7°S, 17.4°E |
| Height | 801 km |
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