undef

s1a-iw-grd-vv-20180614t131437-20180614t131502-022353-026b91-001_filter

s1a-iw-grd-vh-20180614t131437-20180614t131502-022353-026b91-002_filter

s1a-iw-grd-vh-20180614t131437-20180614t131502-022353-026b91-002_winddir

s1a-iw-grd-vv-20180614t131437-20180614t131502-022353-026b91-001_winddir