| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | deb Delta 139 |
| Spacetrack catalog number | 31736 | 12181 |
| Radar cross section | small | medium |
| Epoch of two-line elements (UTC) | 2024 Dec 22 23:36 | 2024 Dec 22 12:20 |
| Time of closest approach (UTC) | 2024 Dec 25 10:38:18.591 |
| Minimum distance | 3.091 km |
| Height difference | 2.666 km |
| Relative speed | 1.547 km/s |
| Angle between velocity vectors | 12° |
| Geographic position | 81.2°S, 168.6°W |
| Height | 877 km |
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