| Primary satellite | Secondary satellite |
| Name | IRIDIUM 170 | deb Kosmos-1275 |
| Spacetrack catalog number | 43930 | 12773 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 14:49 | 2024 Dec 23 13:58 |
| Time of closest approach (UTC) | 2024 Dec 27 23:22:48.823 |
| Minimum distance | 2.929 km |
| Height difference | -2.826 km |
| Relative speed | 15.026 km/s |
| Angle between velocity vectors | 168° |
| Geographic position | 33.4°N, 132.2°E |
| Height | 657 km |
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