| Primary satellite | Secondary satellite |
| Name | ESTCUBE 1 | COSMOS 2251 DEB |
| Spacetrack catalog number | 39161 | 39552 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2022 Aug 09 09:47 | 2022 Aug 07 18:48 |
| Time of closest approach (UTC) | 2022 Jul 02 09:56:28.378 |
| Minimum distance | 112.864 km |
| Height difference | 3.842 km |
| Relative speed | 14.703 km/s |
| Angle between velocity vectors | 156° |
| Geographic position | 65.1°S, 6.5°W |
| Height | 680 km |
|