| Primary satellite | Secondary satellite |
| Name | Envisat | COSMOS 2251 DEB |
| Spacetrack catalog number | 27386 | 34468 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2022 May 21 09:52 | 2022 May 21 22:31 |
| Time of closest approach (UTC) | 2022 Jan 30 03:16:07.328 |
| Minimum distance | 579.500 km |
| Height difference | 3.156 km |
| Relative speed | 14.285 km/s |
| Angle between velocity vectors | 146° |
| Geographic position | 64.5°N, 178.0°W |
| Height | 775 km |
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