| Primary satellite | Secondary satellite |
| Name | SHIYUAN | IRIDIUM 131 |
| Spacetrack catalog number | 37931 | 43079 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 01:02 | 2024 Dec 22 15:30 |
| Time of closest approach (UTC) | 2024 Dec 24 15:17:27.496 |
| Minimum distance | 3.541 km |
| Height difference | -2.364 km |
| Relative speed | 14.910 km/s |
| Angle between velocity vectors | 175° |
| Geographic position | 12.5°S, 45.4°E |
| Height | 786 km |
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