| Primary satellite | Secondary satellite |
| Name | NOAA 6 | IRIDIUM 180 |
| Spacetrack catalog number | 11416 | 43922 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2021 Apr 14 12:56 | 2021 Apr 14 09:15 |
| Time of closest approach (UTC) | 2021 Mar 05 20:30:20.585 |
| Minimum distance | 59.823 km |
| Height difference | 2.388 km |
| Relative speed | 2.047 km/s |
| Angle between velocity vectors | 16° |
| Geographic position | 39.1°N, 145.6°E |
| Height | 781 km |
|