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