| Primary satellite | Secondary satellite |
| Name | FENGYUN 1C DEB | Transit 9 |
| Spacetrack catalog number | 29870 | 801 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 21:21 | 2024 Dec 23 00:09 |
| Time of closest approach (UTC) | 2024 Dec 28 21:44:51.908 |
| Minimum distance | 3.040 km |
| Height difference | -2.791 km |
| Relative speed | 14.747 km/s |
| Angle between velocity vectors | 171° |
| Geographic position | 2.0°S, 83.7°W |
| Height | 867 km |
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