| Primary satellite | Secondary satellite |
| Name | KKS-1 | COSMOS 2251 DEB |
| Spacetrack catalog number | 33499 | 34737 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2023 Dec 09 11:19 | 2023 Aug 31 23:54 |
| Time of closest approach (UTC) | 2022 Sep 27 10:23:04.985 |
| Minimum distance | 2241.109 km |
| Height difference | 157.948 km |
| Relative speed | 13.861 km/s |
| Angle between velocity vectors | 135° |
| Geographic position | 52.8°N, 17.6°W |
| Height | 643 km |
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