| Primary satellite | Secondary satellite |
| Name | CORIOLIS | FENGYUN 1C DEB |
| Spacetrack catalog number | 27640 | 31743 |
| Radar cross section | large | small |
| Epoch of two-line elements (UTC) | 2021 Mar 05 12:30 | 2021 Mar 05 08:15 |
| Time of closest approach (UTC) | 2021 Jan 18 21:04:30.662 |
| Minimum distance | 8.042 km |
| Height difference | -1.893 km |
| Relative speed | 14.673 km/s |
| Angle between velocity vectors | 162° |
| Geographic position | 8.7°S, 42.3°W |
| Height | 842 km |
|