| Primary satellite | Secondary satellite |
| Name | Envisat | IRIDIUM 33 DEB |
| Spacetrack catalog number | 27386 | 34489 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Mar 24 15:01 | 2023 Mar 24 12:02 |
| Time of closest approach (UTC) | 2023 Feb 02 23:50:03.897 |
| Minimum distance | 825.686 km |
| Height difference | 23.891 km |
| Relative speed | 14.810 km/s |
| Angle between velocity vectors | 169° |
| Geographic position | 76.4°S, 84.2°W |
| Height | 791 km |
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