undef
s1b-iw-grd-vv-20211114t172942-20211114t173007-029587-0387ec-001_filter
s1b-iw-grd-vh-20211114t172942-20211114t173007-029587-0387ec-002_filter
s1b-iw-grd-vh-20211114t172942-20211114t173007-029587-0387ec-002_winddir
s1b-iw-grd-vv-20211114t172942-20211114t173007-029587-0387ec-001_winddir