ASASSN-17ag superoutburst There were only single-night observations in the past. YYYYMMDD(UT) mag observer 20211030.4690 20.498zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211031.7467 <159c (Yutaka Maeda) 20211101.7631 <157c (Yutaka Maeda) 20211102.7342 <152c (Yutaka Maeda) 20211103.3433 19.881zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211103.7424 <164c (Yutaka Maeda) 20211104.7325 <152c (Yutaka Maeda) 20211106.7397 <162c (Yutaka Maeda) 20211107.3622 16.105zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211110.1042 14.88C (Eddy Muyllaert) 20211112.3826 15.514zr (Zwicky Transient Facility Lasair (Masci+ 2019))