| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Delta 139 |
| Spacetrack catalog number | 31503 | 12250 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 06:29 | 2024 Dec 23 11:54 |
| Time of closest approach (UTC) | 2024 Dec 29 20:17:55.303 |
| Minimum distance | 3.466 km |
| Height difference | 3.279 km |
| Relative speed | 14.312 km/s |
| Angle between velocity vectors | 148° |
| Geographic position | 54.0°N, 34.5°W |
| Height | 813 km |
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