| Primary satellite | Secondary satellite |
| Name | Envisat | Iridium 16 |
| Spacetrack catalog number | 27386 | 24841 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2023 Dec 04 21:52 | 2023 Dec 04 07:51 |
| Time of closest approach (UTC) | 2023 Sep 28 18:20:59.975 |
| Minimum distance | 22.776 km |
| Height difference | 2.364 km |
| Relative speed | 13.458 km/s |
| Angle between velocity vectors | 129° |
| Geographic position | 81.5°S, 29.7°E |
| Height | 791 km |
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