| 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 Nov 28 20:46 | 2023 Nov 28 09:51 |
| Time of closest approach (UTC) | 2023 Sep 28 18:20:29.957 |
| Minimum distance | 69.794 km |
| Height difference | 1.991 km |
| Relative speed | 13.458 km/s |
| Angle between velocity vectors | 129° |
| Geographic position | 81.7°S, 35.5°E |
| Height | 791 km |
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