| Primary satellite | Secondary satellite |
| Name | IRIDIUM 152 | COSMOS 1818 DEB |
| Spacetrack catalog number | 43479 | 34174 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 23:27 | 2024 Dec 18 01:38 |
| Time of closest approach (UTC) | 2024 Dec 28 20:24:14.624 |
| Minimum distance | 3.745 km |
| Height difference | -3.693 km |
| Relative speed | 8.108 km/s |
| Angle between velocity vectors | 66° |
| Geographic position | 64.0°N, 84.4°W |
| Height | 787 km |
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