| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Delta 139 |
| Spacetrack catalog number | 31012 | 12209 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 04:22 | 2024 Dec 22 23:26 |
| Time of closest approach (UTC) | 2024 Dec 28 05:57:31.783 |
| Minimum distance | 2.927 km |
| Height difference | -2.052 km |
| Relative speed | 13.509 km/s |
| Angle between velocity vectors | 130° |
| Geographic position | 68.9°S, 142.7°W |
| Height | 803 km |
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