| Primary satellite | Secondary satellite |
| Name | deb Delta 139 | FENGYUN 1C DEB |
| Spacetrack catalog number | 13563 | 31629 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 00:28 | 2024 Dec 18 11:57 |
| Time of closest approach (UTC) | 2024 Dec 27 13:35:08.965 |
| Minimum distance | 2.752 km |
| Height difference | -2.198 km |
| Relative speed | 10.520 km/s |
| Angle between velocity vectors | 90° |
| Geographic position | 74.9°S, 107.0°E |
| Height | 870 km |
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