SDSS J153634.42+332851.9 superoutburst? Known SU UMa star. YYYYMMDD(UT) mag observer 20230328.6439 <169C (Masayuki Moriyama) 20230331.6921 <156c (Yutaka Maeda) 20230331.7935 <176C (Masayuki Moriyama) 20230402.5742 <152c (Yutaka Maeda) 20230407.6603 <145c (Yutaka Maeda) 20230408.6408 147:c (Yutaka Maeda) 20230408.6408 147:c (Yutaka Maeda)