| Primary satellite | Secondary satellite |
| Name | Cosmos 407 Rocket | IRIDIUM 111 |
| Spacetrack catalog number | 5175 | 41926 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2021 Feb 24 18:47 | 2021 Feb 24 14:27 |
| Time of closest approach (UTC) | 2021 Jan 19 03:14:19.994 |
| Minimum distance | 16.182 km |
| Height difference | 2.132 km |
| Relative speed | 12.839 km/s |
| Angle between velocity vectors | 119° |
| Geographic position | 69.5°N, 162.9°W |
| Height | 788 km |
|