Dst indices can be classify weak (Dstmin > –50 nT), moderate (–50 nT > Dstmin > –100 nT), and intense (Dstmin < –100nT), also Kp indices range from “0” (very quiet) to “9” (extremely disturbed). Kp indices between “0” and “3” values were classified as very low and unsettled storms, respectively. Kp indices between “4” and “5” were classified as an active and minor storms, whereas Kp indices between “5” and “9” were classified as minor and extreme storms,respectively.

How EUV flux (0.1-50nm) ???