| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | IRIDIUM 111 |
| Spacetrack catalog number | 47073 | 41926 |
| Radar cross section | small | large |
| Epoch of two-line elements (UTC) | 2024 Dec 20 23:38 | 2024 Dec 22 07:09 |
| Time of closest approach (UTC) | 2024 Dec 27 12:27:06.933 |
| Minimum distance | 4.135 km |
| Height difference | -1.962 km |
| Relative speed | 13.775 km/s |
| Angle between velocity vectors | 134° |
| Geographic position | 63.5°S, 22.1°E |
| Height | 805 km |
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