| Primary satellite | Secondary satellite |
| Name | Transit 2A Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 47 | 38506 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 14 21:07 | 2021 Jan 12 01:31 |
| Time of closest approach (UTC) | 2020 Dec 02 21:22:41.927 |
| Minimum distance | 52.113 km |
| Height difference | 0.973 km |
| Relative speed | 14.586 km/s |
| Angle between velocity vectors | 161° |
| Geographic position | 39.5°N, 52.4°E |
| Height | 873 km |
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