| Primary satellite | Secondary satellite |
| Name | CORIOLIS | FENGYUN 1C DEB |
| Spacetrack catalog number | 27640 | 30988 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Mar 05 12:30 | 2021 Mar 04 23:31 |
| Time of closest approach (UTC) | 2021 Jan 21 20:27:53.463 |
| Minimum distance | 17.776 km |
| Height difference | 3.918 km |
| Relative speed | 14.218 km/s |
| Angle between velocity vectors | 148° |
| Geographic position | 57.7°N, 48.4°W |
| Height | 835 km |
|