| Primary satellite | Secondary satellite |
| Name | Envisat | XW-3 (CAS 9) |
| Spacetrack catalog number | 27386 | 50466 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2023 Dec 07 02:02 | 2023 Dec 06 19:30 |
| Time of closest approach (UTC) | 2023 Sep 23 08:04:42.336 |
| Minimum distance | 303.952 km |
| Height difference | -3.251 km |
| Relative speed | 12.469 km/s |
| Angle between velocity vectors | 113° |
| Geographic position | 76.5°S, 107.6°W |
| Height | 791 km |
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