| Primary satellite | Secondary satellite |
| Name | Envisat | FENGYUN 1C DEB |
| Spacetrack catalog number | 27386 | 31063 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Mar 24 06:55 | 2023 Mar 23 15:16 |
| Time of closest approach (UTC) | 2023 Feb 10 09:21:46.920 |
| Minimum distance | 301.973 km |
| Height difference | 5.282 km |
| Relative speed | 14.657 km/s |
| Angle between velocity vectors | 158° |
| Geographic position | 40.8°N, 88.9°E |
| Height | 772 km |
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