GP CVn superoutburst (UGSU+E) YYYYMMDD(UT) mag observer 20230107.8480 <149c (Yutaka Maeda) 20230107.9094 <145C (Masayuki Moriyama) 20230108.7692 <145c (Yutaka Maeda) 20230109.8181 <147c (Yutaka Maeda) 20230110.7889 <151c (Yutaka Maeda) 20230113.2503 <184C (Masao Funada) 20230120.7712 155c (Yutaka Maeda) 20230121.7598 152c (Yutaka Maeda) 20230130.7078 153c (Yutaka Maeda)