| Primary satellite | Secondary satellite |
| Name | KKS-1 | COSMOS 2251 DEB |
| Spacetrack catalog number | 33499 | 37320 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2023 Apr 01 20:11 | 2023 Mar 29 08:21 |
| Time of closest approach (UTC) | 2023 Jan 31 15:00:36.222 |
| Minimum distance | 678.523 km |
| Height difference | -2.512 km |
| Relative speed | 14.849 km/s |
| Angle between velocity vectors | 160° |
| Geographic position | 50.7°N, 116.5°E |
| Height | 657 km |
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