undef

s1a-ew-grd-vv-20190326t013027-20190326t013113-026502-02f7fa-001_filter

s1a-ew-grd-vh-20190326t013027-20190326t013113-026502-02f7fa-002_filter

s1a-ew-grd-vh-20190326t013027-20190326t013113-026502-02f7fa-002_winddir

s1a-ew-grd-vv-20190326t013027-20190326t013113-026502-02f7fa-001_winddir