| Primary satellite | Secondary satellite |
| Name | Cosmos 1812 | KAIDUN 1 |
| Spacetrack catalog number | 17295 | 41915 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Sep 16 11:17 | 2024 Sep 16 13:41 |
| Time of closest approach (UTC) | 2024 Aug 12 23:54:17.475 |
| Minimum distance | 146.079 km |
| Height difference | 2.696 km |
| Relative speed | 15.248 km/s |
| Angle between velocity vectors | 173° |
| Geographic position | 75.5°N, 91.8°W |
| Height | 475 km |
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