| Primary satellite | Secondary satellite |
| Name | NOAA 12 | FENGYUN 1C DEB |
| Spacetrack catalog number | 21263 | 29933 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Mar 07 22:38 | 2021 Mar 08 01:54 |
| Time of closest approach (UTC) | 2021 Jan 22 04:36:23.604 |
| Minimum distance | 61.563 km |
| Height difference | -2.694 km |
| Relative speed | 3.076 km/s |
| Angle between velocity vectors | 24° |
| Geographic position | 81.1°N, 129.6°E |
| Height | 813 km |
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