undef

s1b-iw-grd-vh-20190810t095340-20190810t095405-017522-020f3e-002_filter

s1b-iw-grd-vv-20190810t095340-20190810t095405-017522-020f3e-001_filter

s1b-iw-grd-vv-20190810t095340-20190810t095405-017522-020f3e-001_winddir

s1b-iw-grd-vh-20190810t095340-20190810t095405-017522-020f3e-002_winddir