| Primary satellite | Secondary satellite |
| Name | Cosmos 1850 | IRIDIUM 145 |
| Spacetrack catalog number | 18095 | 43253 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2024 Dec 22 21:05 | 2024 Dec 22 22:16 |
| Time of closest approach (UTC) | 2024 Dec 26 16:31:49.902 |
| Minimum distance | 3.489 km |
| Height difference | -3.219 km |
| Relative speed | 14.570 km/s |
| Angle between velocity vectors | 156° |
| Geographic position | 36.7°S, 168.8°E |
| Height | 796 km |
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