undef

s1b-iw-grd-vh-20180823t155938-20180823t160003-012392-016d87-002_filter

s1b-iw-grd-vv-20180823t155938-20180823t160003-012392-016d87-001_filter

s1b-iw-grd-vv-20180823t155938-20180823t160003-012392-016d87-001_winddir

s1b-iw-grd-vh-20180823t155938-20180823t160003-012392-016d87-002_winddir