undef

s1a-iw-grd-vv-20211027t044958-20211027t045023-040300-04c67a-001_filter

s1a-iw-grd-vh-20211027t044958-20211027t045023-040300-04c67a-002_filter

s1a-iw-grd-vv-20211027t044958-20211027t045023-040300-04c67a-001_winddir

s1a-iw-grd-vh-20211027t044958-20211027t045023-040300-04c67a-002_winddir