| Primary satellite | Secondary satellite |
| Name | Envisat | IRIDIUM 33 DEB |
| Spacetrack catalog number | 27386 | 35631 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Jan 28 22:24 | 2023 Jan 28 16:58 |
| Time of closest approach (UTC) | 2022 Dec 08 20:05:28.152 |
| Minimum distance | 15.359 km |
| Height difference | -3.145 km |
| Relative speed | 14.906 km/s |
| Angle between velocity vectors | 174° |
| Geographic position | 37.4°S, 110.7°E |
| Height | 778 km |
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