| Primary satellite | Secondary satellite |
| Name | Envisat | IRIDIUM 33 DEB |
| Spacetrack catalog number | 27386 | 35052 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Jan 28 12:48 | 2023 Jan 28 04:52 |
| Time of closest approach (UTC) | 2022 Dec 03 04:31:38.342 |
| Minimum distance | 11.611 km |
| Height difference | 4.848 km |
| Relative speed | 14.928 km/s |
| Angle between velocity vectors | 175° |
| Geographic position | 30.0°N, 4.6°W |
| Height | 769 km |
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