| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | IRIDIUM 108 |
| Spacetrack catalog number | 35459 | 41924 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 20 16:06 | 2024 Dec 22 20:10 |
| Time of closest approach (UTC) | 2024 Dec 27 15:03:19.894 |
| Minimum distance | 3.446 km |
| Height difference | -2.189 km |
| Relative speed | 14.530 km/s |
| Angle between velocity vectors | 154° |
| Geographic position | 39.5°S, 141.5°E |
| Height | 796 km |
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