| Primary satellite | Secondary satellite |
| Name | MOS 1 | Feng Yun 1-A |
| Spacetrack catalog number | 17527 | 19467 |
| Radar cross section | large | large |
| Epoch of two-line elements (UTC) | 2021 Jan 17 21:28 | 2021 Jan 17 18:35 |
| Time of closest approach (UTC) | 2020 Dec 09 00:02:22.057 |
| Minimum distance | 219.567 km |
| Height difference | -2.657 km |
| Relative speed | 4.459 km/s |
| Angle between velocity vectors | 35° |
| Geographic position | 80.1°N, 165.4°W |
| Height | 896 km |
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