GZ Cnc possible superoutburst YYYYMMDD(UT) mag observer 20220225.6586 <150c (Yutaka Maeda) 20220225.7558 <162C (Masayuki Moriyama) 20220226.6771 135cG (Yutaka Maeda) 20220226.6772 135cG (Yutaka Maeda) 20220227.6656 131cG (Yutaka Maeda) 20220227.6656 131cG (Yutaka Maeda) 20220227.7532 135C (Masayuki Moriyama) 20220227.8778 132 (Eddy Muyllaert)