| Primary satellite | Secondary satellite |
| Name | Cosmos 540 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 6324 | 31929 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Sep 24 04:47 | 2023 Sep 23 01:32 |
| Time of closest approach (UTC) | 2023 Jun 02 18:21:59.105 |
| Minimum distance | 1095.150 km |
| Height difference | 7.760 km |
| Relative speed | 13.500 km/s |
| Angle between velocity vectors | 129° |
| Geographic position | 70.6°S, 98.3°E |
| Height | 770 km |
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