| 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 Jan 29 16:20:42.736 |
| Minimum distance | 1062.143 km |
| Height difference | 0.985 km |
| Relative speed | 14.566 km/s |
| Angle between velocity vectors | 155° |
| Geographic position | 50.3°S, 173.4°E |
| Height | 786 km |
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