| Primary satellite | Secondary satellite |
| Name | Envisat | FENGYUN 1C DEB |
| Spacetrack catalog number | 27386 | 33748 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2026 Jan 15 11:59 | 2026 Jan 15 02:33 |
| Time of closest approach (UTC) | 2025 Jul 21 20:42:11.116 |
| Minimum distance | 6377.118 km |
| Height difference | -2.514 km |
| Relative speed | 13.025 km/s |
| Angle between velocity vectors | 121° |
| Geographic position | 37.6°S, 80.3°E |
| Height | 775 km |
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