| Primary satellite | Secondary satellite |
| Name | Envisat | Cosmos 1420 |
| Spacetrack catalog number | 27386 | 13648 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2023 Dec 03 20:58 | 2023 Dec 03 17:36 |
| Time of closest approach (UTC) | 2022 Sep 29 08:33:35.522 |
| Minimum distance | 5161.597 km |
| Height difference | 13.018 km |
| Relative speed | 12.388 km/s |
| Angle between velocity vectors | 112° |
| Geographic position | 41.5°S, 76.6°W |
| Height | 780 km |
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