undef
s1b-iw-grd-vh-20200906t092914-20200906t092940-023253-02c288-002_filter
s1b-iw-grd-vv-20200906t092914-20200906t092940-023253-02c288-001_filter
s1b-iw-grd-vv-20200906t092914-20200906t092940-023253-02c288-001_winddir
s1b-iw-grd-vh-20200906t092914-20200906t092940-023253-02c288-002_winddir