| Primary satellite | Secondary satellite |
| Name | IRIDIUM 138 | FENGYUN 1C DEB |
| Spacetrack catalog number | 43071 | 30096 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 20:13 | 2024 Dec 23 02:42 |
| Time of closest approach (UTC) | 2024 Dec 27 22:55:32.128 |
| Minimum distance | 2.247 km |
| Height difference | -0.441 km |
| Relative speed | 13.469 km/s |
| Angle between velocity vectors | 129° |
| Geographic position | 80.4°N, 96.8°W |
| Height | 790 km |
|