| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Echo 1? |
| Spacetrack catalog number | 30143 | 5922 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 00:17 | 2024 Dec 22 22:48 |
| Time of closest approach (UTC) | 2024 Dec 25 18:24:46.621 |
| Minimum distance | 4.757 km |
| Height difference | 4.231 km |
| Relative speed | 6.413 km/s |
| Angle between velocity vectors | 52° |
| Geographic position | 1.4°N, 178.5°W |
| Height | 969 km |
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