Index of ftp://hazards.cr.usgs.gov/Rigler/SECS/ULF_1min

`ULF_1min_Bgrid2_20111024T120000_to_20111025T235900.nc`	`137.66Mb`	`August 26 2021`
`ULF_1min_Bgrid2_20170527T120000_to_20170528T235900.nc`	`137.66Mb`	`August 23 2021`
`ULF_1min_Bgrid_20111024T120000_to_20111025T235900.nc`	`137.66Mb`	`August 26 2021`
`ULF_1min_Bgrid_20170527T120000_to_20170528T235900.nc`	`137.66Mb`	`August 23 2021`
`ULF_1min_Bobs2_20111024T120000_to_20111025T235900.nc`	`2.40Mb`	`August 26 2021`
`ULF_1min_Bobs2_20170527T120000_to_20170528T235900.nc`	`2.20Mb`	`August 23 2021`
`ULF_1min_Bobs_20111024T120000_to_20111025T235900.nc`	`2.40Mb`	`August 26 2021`
`ULF_1min_Bobs_20170527T120000_to_20170528T235900.nc`	`2.20Mb`	`August 23 2021`
`ULF_1min_Jgrid2_20111024T120000_to_20111025T235900.nc`	`274.87Mb`	`August 26 2021`
`ULF_1min_Jgrid2_20170527T120000_to_20170528T235900.nc`	`274.87Mb`	`August 23 2021`
`ULF_1min_Jgrid_20111024T120000_to_20111025T235900.nc`	`274.87Mb`	`August 26 2021`
`ULF_1min_Jgrid_20170527T120000_to_20170528T235900.nc`	`274.87Mb`	`August 23 2021`