| 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 13:18:47.101 |
| Minimum distance | 565.690 km |
| Height difference | -2.122 km |
| Relative speed | 4.521 km/s |
| Angle between velocity vectors | 35° |
| Geographic position | 67.6°S, 55.7°E |
| Height | 789 km |
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