| Primary satellite | Secondary satellite |
| Name | Envisat | FENGYUN 1C DEB |
| Spacetrack catalog number | 27386 | 31038 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2026 Jan 18 21:18 | 2026 Jan 18 05:30 |
| Time of closest approach (UTC) | 2025 Dec 15 14:51:47.538 |
| Minimum distance | 83.306 km |
| Height difference | -0.890 km |
| Relative speed | 13.568 km/s |
| Angle between velocity vectors | 131° |
| Geographic position | 69.6°N, 30.4°W |
| Height | 774 km |
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