| Primary satellite | Secondary satellite |
| Name | YUNHAI 1 | IRIDIUM 131 |
| Spacetrack catalog number | 41857 | 43079 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 11:00 | 2024 Dec 22 15:30 |
| Time of closest approach (UTC) | 2024 Dec 25 02:15:03.732 |
| Minimum distance | 1.346 km |
| Height difference | 0.203 km |
| Relative speed | 14.917 km/s |
| Angle between velocity vectors | 174° |
| Geographic position | 28.6°N, 61.6°E |
| Height | 780 km |
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