Index of ftp://ftp.ngdc.noaa.gov/STP/GEOMAGNETIC_DATA
Parent Directory
AASTAR
8.00b
February 8 2011
APSTAR
12.00b
October 14 2014
CATALOG
8.00b
March 14 2007
Google_Earth
3.00b
June 9 2007
HOURLY_VALUES
40.00b
July 13 2011
INDICES
8.00b
August 13 2013
Japan
2.00b
February 18 2003
ONE_MINUTE_VALUES
92.00b
February 18 2003