ASASSN-13bc likely superoutburst YYYYMMDD(UT) mag observer 20200812.542 <165c (Mitsutaka Hiraga) 20200814.519 164c (Mitsutaka Hiraga) 20200814.5981 <118c (Yutaka Maeda) 20200815.5581 149cG (Yutaka Maeda) 20200816.5683 149cG (Yutaka Maeda)