| 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 07 20:17 | 2022 Aug 07 18:48 |
| Time of closest approach (UTC) | 2022 Jul 02 09:56:30.832 |
| Minimum distance | 120.389 km |
| Height difference | 3.857 km |
| Relative speed | 14.703 km/s |
| Angle between velocity vectors | 156° |
| Geographic position | 64.9°S, 6.4°W |
| Height | 680 km |
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