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Development of a MATLAB Web-based Application for Calculating Ionospheric Scintillation Proxy Indexes (S4p-1 and S4p-2) and the Rate of Total Electron Content Index (RoTI)

In this paper, a web-based application for calculating ionospheric scintillation proxy indexes (S4p-l and S4p-2) and rate of total electron content index (RoTI) was developed using MATLAB. Ionospheric scintillation is a phenomenon described by rapid temporal fluctuations of incoming radio wave signals passing through irregularities in the ionosphere. Through the internet, this application can accept multiple high-rate GNSS data (compressed RINEX file) maximum of 1-day data (96 GNSS files), extracting the pseudo-range numbers, carrier-to-noise ratio (C/No) data, phase measurement data, and accept GPS daily navigational data (brdc) and then calculate and graph the ionospheric scintillation proxy indexes and RoTI.