| Primary satellite | Secondary satellite |
| Name | Envisat | FENGYUN 1C DEB |
| Spacetrack catalog number | 27386 | 30530 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Nov 28 20:46 | 2023 Nov 28 16:41 |
| Time of closest approach (UTC) | 2023 Sep 29 00:08:14.697 |
| Minimum distance | 384.319 km |
| Height difference | 1.556 km |
| Relative speed | 9.301 km/s |
| Angle between velocity vectors | 77° |
| Geographic position | 78.0°N, 174.5°W |
| Height | 778 km |
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