The 6 September 2017 X-Class Solar Flares and Their Impacts on the Ionosphere, GNSS, and HF Radio Wave Propagation.

Space Weather · 2018 · PMC6473633 · PMID 31031571

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quite significantno p-value reported

During the X9.3 SF the subsolar point shifts to the European and Atlantic regions, and the effects are quite significant in the American sector as well.

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