| Primary satellite | Secondary satellite |
| Name | KKS-1 | FENGYUN 1C DEB |
| Spacetrack catalog number | 33499 | 31281 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2021 Mar 07 21:29 | 2021 Mar 07 21:29 |
| Time of closest approach (UTC) | 2021 Jan 20 00:19:49.696 |
| Minimum distance | 23.381 km |
| Height difference | 2.581 km |
| Relative speed | 14.787 km/s |
| Angle between velocity vectors | 157° |
| Geographic position | 42.3°S, 65.6°W |
| Height | 656 km |
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