| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | IRIDIUM 171 |
| Spacetrack catalog number | 31420 | 43929 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2023 Jan 27 12:38 | 2023 Jan 29 21:16 |
| Time of closest approach (UTC) | 2022 Dec 02 15:01:01.729 |
| Minimum distance | 33.012 km |
| Height difference | 6.698 km |
| Relative speed | 14.922 km/s |
| Angle between velocity vectors | 176° |
| Geographic position | 15.9°S, 123.5°W |
| Height | 777 km |
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