hec_id,time_start,time_peak,proton_flux,cme_parameters,time_peak_flare,nar,lat_hg,long_hg,xray_class,optical_class 249,2013-05-22 14:20:00.0,2013-05-23 06:50:00.0,1660.0,Asymm. Halo/22 1325,2013-05-22 13:32:00.0,11745,15.0,70.0,M5,long duration