| Primary satellite | Secondary satellite |
| Name | CZ-2C R/B | FENGYUN 1C DEB |
| Spacetrack catalog number | 31114 | 30516 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Apr 09 19:26 | 2021 Apr 10 09:14 |
| Time of closest approach (UTC) | 2021 Mar 09 03:28:19.774 |
| Minimum distance | 20.515 km |
| Height difference | -4.026 km |
| Relative speed | 14.023 km/s |
| Angle between velocity vectors | 141° |
| Geographic position | 63.2°S, 66.3°E |
| Height | 845 km |
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