undef

s1b-iw-grd-vv-20190314t160621-20190314t160646-015352-01cbee-001_filter

s1b-iw-grd-vh-20190314t160621-20190314t160646-015352-01cbee-002_filter

s1b-iw-grd-vh-20190314t160621-20190314t160646-015352-01cbee-002_winddir

s1b-iw-grd-vv-20190314t160621-20190314t160646-015352-01cbee-001_winddir