| 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 28 12:40 | 2023 Mar 28 15:03 |
| Time of closest approach (UTC) | 2023 Feb 02 23:53:27.380 |
| Minimum distance | 1057.117 km |
| Height difference | -6.891 km |
| Relative speed | 14.853 km/s |
| Angle between velocity vectors | 171° |
| Geographic position | 66.8°S, 102.1°W |
| Height | 789 km |
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