2017 May 21 1900 UTC Sunspot Group Detection and Classification Results (based on SDO HMI Continuum and Magnetogram Images) Number of Detected Sunspot Groups : 3 ASSA Number Num Spots Num Spots (with penumbra) Location LE Area Area(pen) McIntosh Class Mag Class fprob_C fprob_M fprob_X 0001 1 1 S 6.4/W 3.5 0.4 9 9 Hsx Alpha 10 1 0 0002 1 1 N11.2/E 1.8 0.5 13 13 Hsx Alpha 10 1 0 0003 2 2 N13.4/E27.7 4.3 21 21 Dsi Beta 12 2 0 Total Number of Spots : 4 Wolf Number : 34 < Flare Probability as a whole > C-Flare : 29 (%) M-Flare : 4 (%) X-Flare : 0 (%)