undef
s1a-iw-grd-vh-20211027t044818-20211027t044843-040300-04c67a-002_filter
s1a-iw-grd-vv-20211027t044818-20211027t044843-040300-04c67a-001_filter
s1a-iw-grd-vv-20211027t044818-20211027t044843-040300-04c67a-001_winddir
s1a-iw-grd-vh-20211027t044818-20211027t044843-040300-04c67a-002_winddir