| Primary satellite | Secondary satellite |
| Name | Meteor 1-21 | FENGYUN 1C DEB |
| Spacetrack catalog number | 7714 | 32141 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 17 04:29 | 2021 Jan 15 20:57 |
| Time of closest approach (UTC) | 2020 Dec 03 13:14:59.927 |
| Minimum distance | 143.900 km |
| Height difference | 0.472 km |
| Relative speed | 3.224 km/s |
| Angle between velocity vectors | 25° |
| Geographic position | 44.4°S, 119.3°E |
| Height | 865 km |
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