| Primary satellite | Secondary satellite |
| Name | Envisat | IRIDIUM 33 DEB |
| Spacetrack catalog number | 27386 | 37548 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Jun 02 13:06 | 2023 May 25 14:01 |
| Time of closest approach (UTC) | 2023 Apr 08 14:58:58.199 |
| Minimum distance | 560.864 km |
| Height difference | -2.003 km |
| Relative speed | 4.509 km/s |
| Angle between velocity vectors | 35° |
| Geographic position | 67.6°S, 30.6°E |
| Height | 789 km |
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