| Primary satellite | Secondary satellite |
| Name | Envisat | IRIDIUM 33 DEB |
| Spacetrack catalog number | 27386 | 46979 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Jan 28 22:24 | 2023 Jan 22 14:37 |
| Time of closest approach (UTC) | 2022 Dec 08 20:16:20.617 |
| Minimum distance | 1389.909 km |
| Height difference | -11.088 km |
| Relative speed | 14.290 km/s |
| Angle between velocity vectors | 146° |
| Geographic position | 74.5°S, 83.2°E |
| Height | 791 km |
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