| Primary satellite | Secondary satellite |
| Name | IRIDIUM 136 | FENGYUN 1C DEB |
| Spacetrack catalog number | 42962 | 29969 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 03:05 | 2024 Dec 23 05:15 |
| Time of closest approach (UTC) | 2024 Dec 25 17:40:32.410 |
| Minimum distance | 4.117 km |
| Height difference | -3.498 km |
| Relative speed | 14.915 km/s |
| Angle between velocity vectors | 173° |
| Geographic position | 45.0°N, 66.8°E |
| Height | 784 km |
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