Intensity time profiles for the 41 “Hit” (correctly predicted) ≥S2 > 10 MeV proton events in Table 2. The vertical red line gives the time 10 minutes after the peak of the ≥M2 SXR flare, the light blue line gives the time that the proton event intensity crossed the S1 level, and the black line gives the crossing time of the S2 event threshold. The interpolations in the SPE trace for event No. 45 were included in the GOES data. Note that event Nos. 46 and 47 are shown in one plot.