| Primary satellite | Secondary satellite |
| Name | Envisat | FENGYUN 1C DEB |
| Spacetrack catalog number | 27386 | 30022 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2026 Jan 13 15:13 | 2026 Jan 13 13:40 |
| Time of closest approach (UTC) | 2025 Dec 17 02:52:47.466 |
| Minimum distance | 4.337 km |
| Height difference | 4.251 km |
| Relative speed | 11.506 km/s |
| Angle between velocity vectors | 101° |
| Geographic position | 76.3°S, 150.5°W |
| Height | 790 km |
|