undef

s1a-iw-grd-vh-20190426t025824-20190426t025849-026955-03088f-002_filter

s1a-iw-grd-vv-20190426t025824-20190426t025849-026955-03088f-001_filter

s1a-iw-grd-vv-20190426t025824-20190426t025849-026955-03088f-001_winddir

s1a-iw-grd-vh-20190426t025824-20190426t025849-026955-03088f-002_winddir