| Primary satellite | Secondary satellite |
| Name | Envisat | Cosmos 540 |
| Spacetrack catalog number | 27386 | 6323 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2023 Mar 24 15:01 | 2023 Mar 23 18:51 |
| Time of closest approach (UTC) | 2023 Feb 05 03:58:07.494 |
| Minimum distance | 2.450 km |
| Height difference | -0.273 km |
| Relative speed | 14.909 km/s |
| Angle between velocity vectors | 172° |
| Geographic position | 1.4°N, 176.9°E |
| Height | 768 km |
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