| Primary satellite | Secondary satellite |
| Name | CZ-4B R/B | FENGYUN 1C DEB |
| Spacetrack catalog number | 27432 | 30570 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Mar 05 19:15 | 2021 Mar 05 16:18 |
| Time of closest approach (UTC) | 2021 Jan 22 06:16:37.198 |
| Minimum distance | 19.364 km |
| Height difference | -3.054 km |
| Relative speed | 3.736 km/s |
| Angle between velocity vectors | 29° |
| Geographic position | 80.8°N, 100.4°E |
| Height | 895 km |
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