| Primary satellite | Secondary satellite |
| Name | deb Delta 139 | FENGYUN 1C DEB |
| Spacetrack catalog number | 13561 | 30270 |
| Radar cross section | small | medium |
| Epoch of two-line elements (UTC) | 2024 Dec 22 12:50 | 2024 Dec 22 15:36 |
| Time of closest approach (UTC) | 2024 Dec 28 12:13:13.856 |
| Minimum distance | 2.302 km |
| Height difference | 1.919 km |
| Relative speed | 14.621 km/s |
| Angle between velocity vectors | 162° |
| Geographic position | 14.1°S, 103.0°E |
| Height | 860 km |
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