| Primary satellite | Secondary satellite |
| Name | Envisat | COSMOS 1275 DEB |
| Spacetrack catalog number | 27386 | 42180 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 May 29 05:07 | 2023 May 27 21:05 |
| Time of closest approach (UTC) | 2023 Mar 30 02:47:45.845 |
| Minimum distance | 80.245 km |
| Height difference | 1.472 km |
| Relative speed | 14.948 km/s |
| Angle between velocity vectors | 179° |
| Geographic position | 48.2°N, 176.0°W |
| Height | 772 km |
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