| Primary satellite | Secondary satellite |
| Name | KKS-1 | ESTCUBE 1 |
| Spacetrack catalog number | 33499 | 39161 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2023 May 28 22:52 | 2023 May 29 03:33 |
| Time of closest approach (UTC) | 2023 Apr 07 20:53:04.489 |
| Minimum distance | 28.815 km |
| Height difference | 0.071 km |
| Relative speed | 14.920 km/s |
| Angle between velocity vectors | 164° |
| Geographic position | 9.3°S, 158.5°W |
| Height | 645 km |
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