| Primary satellite | Secondary satellite |
| Name | IRIDIUM 138 | IRIDIUM 33 DEB |
| Spacetrack catalog number | 43071 | 39777 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2024 Dec 22 20:13 | 2024 Dec 21 06:34 |
| Time of closest approach (UTC) | 2024 Dec 24 17:56:53.072 |
| Minimum distance | 3.813 km |
| Height difference | -1.907 km |
| Relative speed | 14.610 km/s |
| Angle between velocity vectors | 157° |
| Geographic position | 70.8°N, 6.2°W |
| Height | 789 km |
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