| Primary satellite | Secondary satellite |
| Name | Cosmos 540 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 6324 | 33618 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Sep 28 03:33 | 2023 Sep 25 02:32 |
| Time of closest approach (UTC) | 2023 Jun 05 07:21:57.612 |
| Minimum distance | 788.693 km |
| Height difference | -121.836 km |
| Relative speed | 15.064 km/s |
| Angle between velocity vectors | 176° |
| Geographic position | 34.4°N, 168.5°W |
| Height | 756 km |
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