PU Per likely superoutburst ASAS-SN detection. SU UMa-type dwarf nova still deserving attention. PUPer 02:42:16.12 35:40:47.30 16.85 2016/12/25 09:28 57747.394530000165 15.02 14.28 56661.31759 PERPU 20161224.404 15.99V ASN PERPU 20161225.395 15.02V ASN