undef
s1b-ew-grd-vh-20190803t032349-20190803t032443-017416-020c12-002_filter
s1b-ew-grd-vv-20190803t032349-20190803t032443-017416-020c12-001_filter
s1b-ew-grd-vv-20190803t032349-20190803t032443-017416-020c12-001_winddir
s1b-ew-grd-vh-20190803t032349-20190803t032443-017416-020c12-002_winddir