Substorm Onsets and Phases (SOPHIE) 2010-2020, EPT 75

Outputs from the SOPHIE (Forsyth et al., 2015, 10.1002/2015JA021343) substorm onset and phase detection technique for SuperMAG data between 2010 and 2020 (inclusive). <br> This version has been updated in to include the MLT and MLAT of the SuperMAG station providing the SML data <br> This file provides the start times of growth/energy input, expansion and recovery phases determined by SOPHIE for an EPT of 75. <br> Data generated for "Extreme Birkeland currents are more likely during geomagnetic storms on the dayside of the Earth" by Coxon et al., submitted to J. Geophys. Res. <br> The data is presented in 5 columns: - The date and time of the first data point in the given phase (YYYY/MM/DD-HH:MM:SS) The phase number (1 for growth/energy input, 2 for expansion, 3 for recovery) A flag indicating that the rate of change of SMU is similar to that of SML in the expansion phase (0 for no flag, 1 for flag) MLT of the active SML station at the shown time MLAT of the active SML station at the shown time <br> The original SuperMAG indices can be downloaded from https://supermag.jhuapl.edu/