| Primary satellite | Secondary satellite |
| Name | Meteor 1-23 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 8520 | 30021 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 17 20:04 | 2021 Jan 17 19:29 |
| Time of closest approach (UTC) | 2020 Dec 04 20:00:00.020 |
| Minimum distance | 261.499 km |
| Height difference | 6.488 km |
| Relative speed | 3.916 km/s |
| Angle between velocity vectors | 31° |
| Geographic position | 55.9°N, 176.2°E |
| Height | 897 km |
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