| Primary satellite | Secondary satellite |
| Name | Envisat | COSMOS 2251 DEB |
| Spacetrack catalog number | 27386 | 34011 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2022 May 21 09:52 | 2022 May 21 13:47 |
| Time of closest approach (UTC) | 2022 Feb 03 07:47:03.293 |
| Minimum distance | 2253.311 km |
| Height difference | 0.524 km |
| Relative speed | 4.483 km/s |
| Angle between velocity vectors | 35° |
| Geographic position | 44.6°N, 40.3°W |
| Height | 772 km |
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