Service International des Indices Géomagnétiques
International Service of Geomagnetic Indices

Data download

The download of geomagnetic indices (that are not officially endorsed by IAGA but are already widely used and/or under development) is done in a two-steps procedure.
  At first, the avaibility of the considered data is displayed.
  Then, data may be uploaded after providing your e-mail address (necessary/used for data service only).

Data type
  ASY/SYM (since 1981)
(since 1959)
Data range
  from... to...
Output data format
  IAGA2002-like format