PV Per superoutburst YYYYMMDD(UT) mag observer 20180718.7884 <158c (Yutaka Maeda) 20180719.7878 <159c (Yutaka Maeda) 20180721.772 153c (Mitsutaka Hiraga) 20180724.7784 155cG (Yutaka Maeda) 20180726.7620 153cG (Yutaka Maeda) 20180727.7536 154cG (Yutaka Maeda)