| Primary satellite | Secondary satellite |
| Name | Courier 1B | FENGYUN 1C DEB |
| Spacetrack catalog number | 58 | 29851 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 Jul 13 15:27 | 2025 Jul 13 01:59 |
| Time of closest approach (UTC) | 2024 Jul 17 09:59:35.309 |
| Minimum distance | 7559.817 km |
| Height difference | -329.734 km |
| Relative speed | 14.673 km/s |
| Angle between velocity vectors | 174° |
| Geographic position | 14.1°N, 31.8°E |
| Height | 1180 km |
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