| Primary satellite | Secondary satellite |
| Name | Iridium Sim2 | deb Kosmos-249 |
| Spacetrack catalog number | 24926 | 3679 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 23 03:47 | 2024 Dec 22 19:57 |
| Time of closest approach (UTC) | 2024 Dec 30 00:48:09.522 |
| Minimum distance | 4.238 km |
| Height difference | 0.011 km |
| Relative speed | 13.865 km/s |
| Angle between velocity vectors | 130° |
| Geographic position | 49.1°N, 108.3°E |
| Height | 610 km |
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