| 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 Jun 07 13:44 | 2023 Jun 07 17:14 |
| Time of closest approach (UTC) | 2023 Apr 07 20:52:28.882 |
| Minimum distance | 20.189 km |
| Height difference | 0.970 km |
| Relative speed | 14.920 km/s |
| Angle between velocity vectors | 164° |
| Geographic position | 9.5°S, 158.3°W |
| Height | 645 km |
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