undef

s1a-ew-grd-vh-20190301t062158-20190301t062258-026140-02eac0-002_filter

s1a-ew-grd-vv-20190301t062158-20190301t062258-026140-02eac0-001_filter

s1a-ew-grd-vv-20190301t062158-20190301t062258-026140-02eac0-001_winddir

s1a-ew-grd-vh-20190301t062158-20190301t062258-026140-02eac0-002_winddir