| Primary satellite | Secondary satellite |
| Name | Envisat | COSMOS 2251 DEB |
| Spacetrack catalog number | 27386 | 34641 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2022 May 21 09:52 | 2022 May 21 22:04 |
| Time of closest approach (UTC) | 2022 Feb 03 03:10:01.789 |
| Minimum distance | 556.692 km |
| Height difference | -5.596 km |
| Relative speed | 14.809 km/s |
| Angle between velocity vectors | 166° |
| Geographic position | 39.3°S, 14.1°E |
| Height | 781 km |
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