| Primary satellite | Secondary satellite |
| Name | CZ-2C R/B | FENGYUN 1C DEB |
| Spacetrack catalog number | 31114 | 36741 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Apr 09 19:26 | 2021 Apr 03 08:39 |
| Time of closest approach (UTC) | 2021 Mar 04 10:08:49.725 |
| Minimum distance | 14.486 km |
| Height difference | -5.044 km |
| Relative speed | 14.361 km/s |
| Angle between velocity vectors | 149° |
| Geographic position | 56.9°S, 37.3°W |
| Height | 837 km |
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