The charts on this page depict the progression of Solar Cycle 23. The charts and tables are updated by the Space Environment Center monthly using the latest ISES predictions. Observed values are initially the preliminary values which are replaced with the final values as they become available.
Description of Solar Cycle Progression displays
Table of Recent Solar Indices (Preliminary) of Observed Monthly Mean Values
Table of Predicted Values With Expected Ranges
For additional information or comments, contact William.Murtagh@noaa.gov
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