| Primary satellite | Secondary satellite |
| Name | Cosmos 540 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 6324 | 31820 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Sep 21 21:55 | 2023 Sep 21 03:45 |
| Time of closest approach (UTC) | 2023 Jun 03 05:01:14.692 |
| Minimum distance | 120.694 km |
| Height difference | 16.401 km |
| Relative speed | 14.851 km/s |
| Angle between velocity vectors | 169° |
| Geographic position | 45.7°N, 80.7°E |
| Height | 751 km |
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