| Primary satellite | Secondary satellite |
| Name | Envisat | IRIDIUM 33 DEB |
| Spacetrack catalog number | 27386 | 33776 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2023 Nov 28 20:46 | 2023 Nov 28 14:47 |
| Time of closest approach (UTC) | 2023 Sep 28 06:08:56.174 |
| Minimum distance | 4.833 km |
| Height difference | 3.468 km |
| Relative speed | 14.933 km/s |
| Angle between velocity vectors | 175° |
| Geographic position | 17.6°N, 39.3°W |
| Height | 766 km |
|