| Primary satellite | Secondary satellite |
| Name | IRIDIUM 122 | FENGYUN 1C DEB |
| Spacetrack catalog number | 42957 | 29942 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 03:33 | 2024 Dec 23 03:14 |
| Time of closest approach (UTC) | 2024 Dec 23 19:44:54.765 |
| Minimum distance | 4.088 km |
| Height difference | 0.833 km |
| Relative speed | 14.839 km/s |
| Angle between velocity vectors | 169° |
| Geographic position | 62.6°S, 48.8°E |
| Height | 803 km |
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