| Primary satellite | Secondary satellite |
| Name | Cosmos 1842 | KAIDUN 1 |
| Spacetrack catalog number | 17911 | 41915 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2023 Dec 03 13:39 | 2023 Dec 03 13:40 |
| Time of closest approach (UTC) | 2023 Oct 07 08:50:37.668 |
| Minimum distance | 388.282 km |
| Height difference | 7.303 km |
| Relative speed | 14.408 km/s |
| Angle between velocity vectors | 143° |
| Geographic position | 82.0°S, 165.2°W |
| Height | 527 km |
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