undef

s1a-iw-grd-vv-20180422t062204-20180422t062229-021576-0252f5-001_filter

s1a-iw-grd-vh-20180422t062204-20180422t062229-021576-0252f5-002_filter

s1a-iw-grd-vv-20180422t062204-20180422t062229-021576-0252f5-001_winddir

s1a-iw-grd-vh-20180422t062204-20180422t062229-021576-0252f5-002_winddir