CSS J063539.3+454049 likely superoutburst As judged from the supercycle. YYYYMMDD(UT) mag observer 20200831.4785 20.241zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20200902.4539 17.821zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20200904.4119 15.414zr (Zwicky Transient Facility Lasair (Masci+ 2019))