| Primary satellite | Secondary satellite |
| Name | ESTCUBE 1 | FENGYUN 1C DEB |
| Spacetrack catalog number | 39161 | 29842 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2023 May 31 22:21 | 2023 May 31 16:00 |
| Time of closest approach (UTC) | 2023 Apr 02 23:57:16.728 |
| Minimum distance | 662.833 km |
| Height difference | -0.354 km |
| Relative speed | 2.991 km/s |
| Angle between velocity vectors | 23° |
| Geographic position | 82.1°S, 62.5°E |
| Height | 672 km |
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