| Primary satellite | Secondary satellite |
| Name | DX 1 | FENGYUN 1C DEB |
| Spacetrack catalog number | 40071 | 30599 |
| Radar cross section | medium | small |
| Epoch of two-line elements (UTC) | 2021 Mar 06 04:21 | 2021 Mar 05 17:27 |
| Time of closest approach (UTC) | 2021 Jan 18 19:17:46.829 |
| Minimum distance | 6.871 km |
| Height difference | 2.372 km |
| Relative speed | 14.734 km/s |
| Angle between velocity vectors | 151° |
| Geographic position | 53.3°N, 1.2°W |
| Height | 629 km |
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