CI UMa likely superoutburst YYYYMMDD(UT) mag observer 20190512.938 <147 (Gary Poyner) 20190513.932 <147 (Gary Poyner) 20190514.919 <147 (Gary Poyner) 20190515.5285 147:cG (Yutaka Maeda) 20190518.5125 145cG (Yutaka Maeda)