| Primary satellite | Secondary satellite |
| Name | Oscar 18 | IRIDIUM 159 |
| Spacetrack catalog number | 20441 | 43578 |
| Radar cross section | medium | large |
| Epoch of two-line elements (UTC) | 2024 Sep 09 12:53 | 2024 Sep 08 22:34 |
| Time of closest approach (UTC) | 2024 Aug 10 12:24:20.124 |
| Minimum distance | 59.573 km |
| Height difference | 3.521 km |
| Relative speed | 12.746 km/s |
| Angle between velocity vectors | 117° |
| Geographic position | 81.1°N, 7.2°W |
| Height | 788 km |
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