| Primary satellite | Secondary satellite |
| Name | NOAA 6 | Iridium 4 |
| Spacetrack catalog number | 11416 | 24796 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2021 Jan 25 17:49 | 2021 Jan 25 12:54 |
| Time of closest approach (UTC) | 2020 Dec 05 07:37:53.353 |
| Minimum distance | 20.713 km |
| Height difference | 0.696 km |
| Relative speed | 14.841 km/s |
| Angle between velocity vectors | 167° |
| Geographic position | 66.9°N, 129.5°E |
| Height | 786 km |
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