| Primary satellite | Secondary satellite |
| Name | Cosmos 1812 | OBJECT K |
| Spacetrack catalog number | 17295 | 49324 |
| Radar cross section | large | medium |
| Epoch of two-line elements (UTC) | 2023 Jan 29 22:55 | 2023 Jan 29 21:54 |
| Time of closest approach (UTC) | 2022 Dec 01 09:07:43.284 |
| Minimum distance | 32.980 km |
| Height difference | 6.407 km |
| Relative speed | 15.212 km/s |
| Angle between velocity vectors | 179° |
| Geographic position | 65.5°N, 149.8°E |
| Height | 517 km |
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