| Primary satellite | Secondary satellite |
| Name | MOS 1 Rocket | FENGYUN 1C DEB |
| Spacetrack catalog number | 17528 | 30087 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Jan 19 12:23 | 2021 Jan 19 13:37 |
| Time of closest approach (UTC) | 2020 Nov 30 04:46:08.024 |
| Minimum distance | 1.305 km |
| Height difference | -1.111 km |
| Relative speed | 14.167 km/s |
| Angle between velocity vectors | 146° |
| Geographic position | 61.3°N, 142.6°W |
| Height | 841 km |
|