| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | IRIDIUM 149 |
| Spacetrack catalog number | 31068 | 43250 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 17 17:10 | 2024 Dec 23 11:04 |
| Time of closest approach (UTC) | 2024 Dec 27 07:39:11.203 |
| Minimum distance | 2.528 km |
| Height difference | 1.849 km |
| Relative speed | 14.763 km/s |
| Angle between velocity vectors | 161° |
| Geographic position | 73.9°N, 111.3°E |
| Height | 787 km |
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