| Primary satellite | Secondary satellite |
| Name | Cosmos 1842 | TerraSAR-X |
| Spacetrack catalog number | 17911 | 31698 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2023 Dec 03 13:39 | 2023 Dec 02 15:14 |
| Time of closest approach (UTC) | 2023 Oct 03 07:27:15.862 |
| Minimum distance | 322.368 km |
| Height difference | -0.431 km |
| Relative speed | 15.206 km/s |
| Angle between velocity vectors | 178° |
| Geographic position | 34.6°N, 19.5°W |
| Height | 519 km |
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