| Primary satellite | Secondary satellite |
| Name | MOS 1 | FENGYUN 1C DEB |
| Spacetrack catalog number | 17527 | 41828 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 17 21:28 | 2021 Jan 17 03:44 |
| Time of closest approach (UTC) | 2020 Dec 05 00:59:45.665 |
| Minimum distance | 203.814 km |
| Height difference | -4.409 km |
| Relative speed | 3.338 km/s |
| Angle between velocity vectors | 26° |
| Geographic position | 80.9°S, 29.9°E |
| Height | 917 km |
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