| Primary satellite | Secondary satellite |
| Name | Envisat | FENGYUN 1C DEB |
| Spacetrack catalog number | 27386 | 30370 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2025 Jul 13 11:52 | 2025 Jul 12 15:25 |
| Time of closest approach (UTC) | 2025 Jun 19 20:18:14.858 |
| Minimum distance | 38.237 km |
| Height difference | -4.423 km |
| Relative speed | 11.063 km/s |
| Angle between velocity vectors | 95° |
| Geographic position | 77.3°N, 126.7°W |
| Height | 775 km |
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