undef
s1b-ew-grd-vh-20190503t001359-20190503t001459-016072-01e3ae-002_filter
s1b-ew-grd-vv-20190503t001359-20190503t001459-016072-01e3ae-001_filter
s1b-ew-grd-vv-20190503t001359-20190503t001459-016072-01e3ae-001_winddir
s1b-ew-grd-vh-20190503t001359-20190503t001459-016072-01e3ae-002_winddir