| Primary satellite | Secondary satellite |
| Name | UKube-1 | SL-18 DEB |
| Spacetrack catalog number | 40074 | 29032 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2021 Mar 07 12:48 | 2021 Mar 07 09:52 |
| Time of closest approach (UTC) | 2021 Jan 18 19:59:36.917 |
| Minimum distance | 184.786 km |
| Height difference | -3.183 km |
| Relative speed | 15.040 km/s |
| Angle between velocity vectors | 171° |
| Geographic position | 60.2°N, 2.5°E |
| Height | 623 km |
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