| Primary satellite | Secondary satellite |
| Name | UKube-1 | COSMOS 2251 DEB |
| Spacetrack catalog number | 40074 | 35703 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2023 Jun 01 23:44 | 2023 May 31 00:57 |
| Time of closest approach (UTC) | 2023 Apr 05 21:28:46.070 |
| Minimum distance | 18.887 km |
| Height difference | 1.219 km |
| Relative speed | 15.105 km/s |
| Angle between velocity vectors | 172° |
| Geographic position | 5.4°S, 158.7°W |
| Height | 607 km |
|