| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | Iridium Sim2 |
| Spacetrack catalog number | 31090 | 24926 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 12:59 | 2024 Dec 23 03:47 |
| Time of closest approach (UTC) | 2024 Dec 29 20:26:18.349 |
| Minimum distance | 4.823 km |
| Height difference | 1.010 km |
| Relative speed | 15.052 km/s |
| Angle between velocity vectors | 174° |
| Geographic position | 23.2°N, 11.8°W |
| Height | 614 km |
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