Geomagnetic data
Yoshiwa hourly data(IAGA2002 format)
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Available
01/1999 ～ 06/2024
Definitive data
01/1999 ～ 10/2023
Provisional data
11/2023 ～ 06/2024
Geomagnetic data
MT data
Geomagnetic charts
Aeromagnetic data
Report of geomagnetic survey