| Primary satellite | Secondary satellite |
| Name | Envisat | deb Kosmos-1275 |
| Spacetrack catalog number | 27386 | 17621 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 Nov 17 20:47 | 2025 Nov 14 11:42 |
| Time of closest approach (UTC) | 2025 Oct 17 20:46:49.188 |
| Minimum distance | 72.486 km |
| Height difference | 5.632 km |
| Relative speed | 14.914 km/s |
| Angle between velocity vectors | 174° |
| Geographic position | 80.1°N, 152.5°W |
| Height | 775 km |
|