| Primary satellite | Secondary satellite |
| Name | deb Delta 139 | FENGYUN 1C DEB |
| Spacetrack catalog number | 13563 | 31476 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 00:28 | 2024 Dec 22 20:40 |
| Time of closest approach (UTC) | 2024 Dec 24 03:34:52.910 |
| Minimum distance | 1.313 km |
| Height difference | 0.506 km |
| Relative speed | 6.857 km/s |
| Angle between velocity vectors | 55° |
| Geographic position | 80.0°N, 159.5°E |
| Height | 803 km |
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