| Primary satellite | Secondary satellite |
| Name | IRIDIUM 122 | FENGYUN 1C DEB |
| Spacetrack catalog number | 42957 | 33633 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 03:33 | 2024 Dec 22 00:44 |
| Time of closest approach (UTC) | 2024 Dec 24 16:56:07.738 |
| Minimum distance | 4.147 km |
| Height difference | 4.023 km |
| Relative speed | 14.881 km/s |
| Angle between velocity vectors | 168° |
| Geographic position | 62.1°N, 76.0°E |
| Height | 788 km |
|