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Solar & Geomagnetic Data

Information about Global Geomagnetic Indices and Solar Parameters

Data are available from January 1932 to the end of last month.

Geomagnetic Indices*:
Kp, ap, Cp and C9.
 
Solar Parameters:
Bartels rotation number, days into 27 day cycle, International sunspot number, 10.7cm flux and flux qualifier.
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Solar Parameters Geomagnetic Indices

Month : (e.g. 6 for June) Year :

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*Kp and its derived indices are provided by GFZ Helmholtz Centre for Geosciences. Matzka, Jürgen; Bronkalla, Oliver; Tornow, Katrin; Elger, Kirsten; Stolle, Claudia (2021): Geomagnetic Kp index. V. 1.0. GFZ Data Services. https://doi.org/10.5880/Kp.0001