Historical databases of propagation indexes

This database contains information of the geomagnetic Kp and ap indexes at 3 hour intervals since 1932, plus the resulting Ap index. It also contains daily details of SSN (Sun spots) and SFI (Solar flux) since 1947. (Brief description of propagation indexes)


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Database is not updated in real time yet, but most recent indexes will be added when possible. Currently contains information up to 28-Sep-2023.
Source of data is NOOA's NGDC


This database contains information of the most relevant propagation indexes collected by DXMAPS.COM at 3 hour intervals since 6-Apr-2007. (Brief description of propagation indexes)


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Database is updated in near real time, however it could happen that sometimes there are gaps in the data due to server issues.

 

 
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