| Primary satellite | Secondary satellite |
| Name | IRIDIUM 33 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 33775 | 30389 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 01:00 | 2024 Dec 22 16:32 |
| Time of closest approach (UTC) | 2024 Dec 27 04:50:17.250 |
| Minimum distance | 3.479 km |
| Height difference | 2.333 km |
| Relative speed | 13.723 km/s |
| Angle between velocity vectors | 133° |
| Geographic position | 80.5°N, 172.1°W |
| Height | 780 km |
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