| Primary satellite | Secondary satellite |
| Name | Meteor 1-21 | FENGYUN 1C DEB |
| Spacetrack catalog number | 7714 | 32212 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 19 09:21 | 2021 Jan 18 14:25 |
| Time of closest approach (UTC) | 2020 Dec 09 06:17:02.296 |
| Minimum distance | 5.751 km |
| Height difference | -5.559 km |
| Relative speed | 14.741 km/s |
| Angle between velocity vectors | 174° |
| Geographic position | 77.6°N, 94.3°W |
| Height | 900 km |
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