undef
s1b-ew-grd-vv-20181005t215113-20181005t215213-013023-0180e1-001_filter
s1b-ew-grd-vh-20181005t215113-20181005t215213-013023-0180e1-002_filter
s1b-ew-grd-vv-20181005t215113-20181005t215213-013023-0180e1-001_winddir
s1b-ew-grd-vh-20181005t215113-20181005t215213-013023-0180e1-002_winddir