| Primary satellite | Secondary satellite |
| Name | ESTCUBE 1 | COSMOS 2251 DEB |
| Spacetrack catalog number | 39161 | 34854 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2022 Aug 15 04:22 | 2022 Aug 13 01:25 |
| Time of closest approach (UTC) | 2022 Jul 09 01:05:41.851 |
| Minimum distance | 19.784 km |
| Height difference | -1.846 km |
| Relative speed | 14.690 km/s |
| Angle between velocity vectors | 154° |
| Geographic position | 68.0°N, 163.3°E |
| Height | 666 km |
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