| Primary satellite | Secondary satellite |
| Name | DX 1 | IRIDIUM 47 DEB |
| Spacetrack catalog number | 40071 | 40252 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2021 Mar 06 04:21 | 2021 Mar 05 20:08 |
| Time of closest approach (UTC) | 2021 Jan 21 06:59:26.030 |
| Minimum distance | 15.271 km |
| Height difference | -6.699 km |
| Relative speed | 15.055 km/s |
| Angle between velocity vectors | 169° |
| Geographic position | 61.8°N, 23.9°W |
| Height | 637 km |
|