| Primary satellite | Secondary satellite |
| Name | COSMOS 2428 | FENGYUN 1C DEB |
| Spacetrack catalog number | 31792 | 30574 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Sep 28 10:14 | 2023 Sep 28 10:16 |
| Time of closest approach (UTC) | 2023 Jun 02 20:41:43.119 |
| Minimum distance | 142.601 km |
| Height difference | -12.828 km |
| Relative speed | 14.809 km/s |
| Angle between velocity vectors | 166° |
| Geographic position | 49.0°S, 60.0°W |
| Height | 868 km |
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