undef

s1b-ew-grd-vv-20181005t073226-20181005t073325-013014-01809d-001_filter

s1b-ew-grd-vh-20181005t073226-20181005t073325-013014-01809d-002_filter

s1b-ew-grd-vv-20181005t073226-20181005t073325-013014-01809d-001_winddir

s1b-ew-grd-vh-20181005t073226-20181005t073325-013014-01809d-002_winddir