| Cyclone name | HELENE |
| Basin | NA |
| ATCF vmax (m/s) | 41 |
| SAR-derived vmax (m/s) | 42.64 |
| SAR-derived rmax (km) | 50.0 |
| Cyclone estimated speed (m/s) | 6.09 |
| Acquisition time | 2018-09-12 08:18:31 |
| Satellite instrument | C-Band SAR |
| Satellite mission | S1B |
| SAR-derived eye center position (lon / lat) | -36.0 / 18.8 |
| SAR-derived center quality flag | 1.2 |
| Shortest distance to coast from interpolated track point | 1147.51 km |
| Shortest distance to acquisition border from interpolated track point | 21.8 km |
| Area within 100km around track point outside acquisition bounding box | 36.21% |
| Area of 100km around track point inside acquisition bounding box and on land | 0.0% |
| Download TC analysis NETCDF product | s1b-ew-owi-ca-20180912t081831-20180912t082017-000003-01765A_sw_al082018_geogr_polar.nc |
| Download center analysis FIX for this image | SARFIX_s1b-ew-owi-cc-20180912t081831-20180912t082017-012679-01765A.dat |
| Download center analysis FIX for this storm | SARFIX_bal082018.dat'] |
| Download satellite source file | s1b-ew-owi-cm-20180912t081831-20180912t082017-000003-01765A_ll_gd.nc |