| Primary satellite | Secondary satellite |
| Name | deb Delta 139 | FENGYUN 1C DEB |
| Spacetrack catalog number | 13561 | 37060 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 12:50 | 2024 Dec 20 09:50 |
| Time of closest approach (UTC) | 2024 Dec 28 09:22:18.476 |
| Minimum distance | 3.935 km |
| Height difference | -3.578 km |
| Relative speed | 14.169 km/s |
| Angle between velocity vectors | 145° |
| Geographic position | 58.2°S, 17.2°W |
| Height | 862 km |
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