| Primary satellite | Secondary satellite |
| Name | IRIDIUM 170 | FENGYUN 1C DEB |
| Spacetrack catalog number | 43930 | 37444 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 14:49 | 2024 Dec 23 14:35 |
| Time of closest approach (UTC) | 2024 Dec 28 02:11:17.175 |
| Minimum distance | 3.699 km |
| Height difference | -2.885 km |
| Relative speed | 14.949 km/s |
| Angle between velocity vectors | 165° |
| Geographic position | 66.9°S, 79.8°E |
| Height | 680 km |
|