| Primary satellite | Secondary satellite |
| Name | deb Feng Yun 1B | IRIDIUM 135 |
| Spacetrack catalog number | 23259 | 43070 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 22:46 | 2024 Dec 23 00:38 |
| Time of closest approach (UTC) | 2024 Dec 23 16:02:39.586 |
| Minimum distance | 1.528 km |
| Height difference | 1.243 km |
| Relative speed | 14.805 km/s |
| Angle between velocity vectors | 165° |
| Geographic position | 70.4°N, 135.3°W |
| Height | 787 km |
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