| Primary satellite | Secondary satellite |
| Name | Cosmos 540 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 6324 | 31046 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Sep 28 03:33 | 2023 Sep 28 03:52 |
| Time of closest approach (UTC) | 2023 Jun 03 02:31:16.030 |
| Minimum distance | 43.420 km |
| Height difference | -7.020 km |
| Relative speed | 14.928 km/s |
| Angle between velocity vectors | 170° |
| Geographic position | 41.5°S, 63.9°W |
| Height | 763 km |
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