| Primary satellite | Secondary satellite |
| Name | Envisat | IRIDIUM 33 DEB |
| Spacetrack catalog number | 27386 | 33775 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2025 May 14 21:10 | 2025 May 15 01:43 |
| Time of closest approach (UTC) | 2024 Apr 23 00:35:31.313 |
| Minimum distance | 5717.294 km |
| Height difference | 7.278 km |
| Relative speed | 14.841 km/s |
| Angle between velocity vectors | 168° |
| Geographic position | 12.5°S, 142.8°W |
| Height | 769 km |
|