| Primary satellite | Secondary satellite |
| Name | PROMETHEUS 2-3 | Cosmos 1842 |
| Spacetrack catalog number | 41855 | 17911 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 23 07:54 | 2024 Dec 23 02:49 |
| Time of closest approach (UTC) | 2024 Dec 25 17:19:39.927 |
| Minimum distance | 3.724 km |
| Height difference | -2.393 km |
| Relative speed | 15.238 km/s |
| Angle between velocity vectors | 179° |
| Geographic position | 37.0°S, 9.4°E |
| Height | 488 km |
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