| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | Iridium 57 |
| Spacetrack catalog number | 31760 | 25273 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 03:17 | 2024 Dec 23 03:06 |
| Time of closest approach (UTC) | 2024 Dec 26 05:10:34.379 |
| Minimum distance | 2.196 km |
| Height difference | 1.837 km |
| Relative speed | 14.309 km/s |
| Angle between velocity vectors | 146° |
| Geographic position | 78.2°N, 152.7°W |
| Height | 783 km |
|