| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | IRIDIUM 154 |
| Spacetrack catalog number | 30010 | 43574 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 11:10 | 2024 Dec 23 07:35 |
| Time of closest approach (UTC) | 2024 Dec 25 13:37:45.845 |
| Minimum distance | 3.437 km |
| Height difference | 1.059 km |
| Relative speed | 12.038 km/s |
| Angle between velocity vectors | 107° |
| Geographic position | 80.9°N, 139.6°E |
| Height | 789 km |
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