| Primary satellite | Secondary satellite |
| Name | KKS-1 | COSMOS 2251 DEB |
| Spacetrack catalog number | 33499 | 36002 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2023 May 29 15:08 | 2023 May 27 23:06 |
| Time of closest approach (UTC) | 2023 Apr 06 03:14:09.084 |
| Minimum distance | 1240.063 km |
| Height difference | 8.291 km |
| Relative speed | 14.660 km/s |
| Angle between velocity vectors | 153° |
| Geographic position | 50.2°N, 65.3°W |
| Height | 642 km |
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