| Primary satellite | Secondary satellite |
| Name | NOAA 12 | FENGYUN 1C DEB |
| Spacetrack catalog number | 21263 | 31823 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Mar 05 21:47 | 2021 Mar 05 20:18 |
| Time of closest approach (UTC) | 2021 Jan 22 19:11:13.467 |
| Minimum distance | 9.531 km |
| Height difference | -2.902 km |
| Relative speed | 14.590 km/s |
| Angle between velocity vectors | 158° |
| Geographic position | 36.1°S, 11.6°W |
| Height | 816 km |
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