Wils_SDSSJ091147.02+315101.8 superoutburst YYYYMMDD(UT) mag observer 20200128.5705 <163c (Yutaka Maeda) 20200201.5469 150c (Yutaka Maeda) 20200202.5889 <149c (Yutaka Maeda) 20200203.5898 151:cG (Yutaka Maeda) 20200205.6236 150:cG (Yutaka Maeda)