YZ Cnc superoutburst (Already late for time-series photometry) YYYYMMDD(UT) mag observer 20151211.615 <137 (Tsuneo Horie) 20151212.633 14.80cG (Makoto Watanabe) 20151217.803 114 (Tsuneo Horie) 20151219.822 114 (Tsuneo Horie) 20151221.769 114 (Tsuneo Horie) 20151221.819 117 (Jose Ripero) 20151222.816 115 (Jose Ripero)