10MeV (S1) Proton/PCA Event Ended 20 07 2023 0335UT 10MeV Maximum proton flux of 6.20E+02 PFU (S2) observed at 18 07 2023 0615UT Australian Space Weather Forecasting Centre Bureau of Meteorology ASWFC at bom.gov.au www.bom.gov.au | www.sws.bom.gov.au