| Primary satellite | Secondary satellite |
| Name | Envisat | IRIDIUM 33 DEB |
| Spacetrack catalog number | 27386 | 35618 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Mar 24 06:55 | 2023 Mar 18 16:52 |
| Time of closest approach (UTC) | 2023 Feb 06 02:06:57.154 |
| Minimum distance | 950.386 km |
| Height difference | -2.822 km |
| Relative speed | 9.018 km/s |
| Angle between velocity vectors | 74° |
| Geographic position | 76.3°N, 61.1°E |
| Height | 778 km |
|