SS UMi superoutburst YYYYMMDD(UT) mag observer 20191016.803 <149 (Gary Poyner) 20191019.4183 156:c (Yutaka Maeda) 20191021.4113 138cG (Yutaka Maeda) 20191022.4567 140cG (Yutaka Maeda) 20191022.708 137 (Balazs Bago)