| Primary satellite | Secondary satellite |
| Name | MOS 1 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 17528 | 30899 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 19 12:23 | 2021 Jan 15 16:39 |
| Time of closest approach (UTC) | 2020 Nov 30 22:52:08.094 |
| Minimum distance | 36.469 km |
| Height difference | -3.753 km |
| Relative speed | 4.946 km/s |
| Angle between velocity vectors | 39° |
| Geographic position | 80.7°N, 15.4°W |
| Height | 834 km |
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