| Primary satellite | Secondary satellite |
| Name | Envisat | Cosmos 773 |
| Spacetrack catalog number | 27386 | 8343 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2023 Jan 28 12:48 | 2023 Jan 28 13:02 |
| Time of closest approach (UTC) | 2022 Dec 06 23:11:15.889 |
| Minimum distance | 24.250 km |
| Height difference | 7.527 km |
| Relative speed | 12.839 km/s |
| Angle between velocity vectors | 119° |
| Geographic position | 74.3°S, 40.0°E |
| Height | 791 km |
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