| Primary satellite | Secondary satellite |
| Name | Envisat | IRIDIUM 33 DEB |
| Spacetrack catalog number | 27386 | 33881 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Dec 07 02:02 | 2023 Dec 06 06:23 |
| Time of closest approach (UTC) | 2023 Sep 24 01:05:16.266 |
| Minimum distance | 3827.108 km |
| Height difference | 48.187 km |
| Relative speed | 14.573 km/s |
| Angle between velocity vectors | 156° |
| Geographic position | 32.8°S, 140.6°W |
| Height | 775 km |
|