| Primary satellite | Secondary satellite |
| Name | ESTCUBE 1 | COSMOS 1408 DEB |
| Spacetrack catalog number | 39161 | 52066 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2023 Jun 02 00:24 | 2023 Jun 01 04:47 |
| Time of closest approach (UTC) | 2023 Mar 24 07:51:01.671 |
| Minimum distance | 1283.394 km |
| Height difference | 27.752 km |
| Relative speed | 14.161 km/s |
| Angle between velocity vectors | 142° |
| Geographic position | 74.6°N, 68.8°E |
| Height | 667 km |
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