| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | IRIDIUM 158 |
| Spacetrack catalog number | 41826 | 43571 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2025 Nov 17 15:25 | 2025 Nov 17 12:22 |
| Time of closest approach (UTC) | 2025 Oct 14 05:04:17.273 |
| Minimum distance | 65.065 km |
| Height difference | -2.935 km |
| Relative speed | 14.824 km/s |
| Angle between velocity vectors | 165° |
| Geographic position | 66.9°N, 126.6°W |
| Height | 792 km |
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