IY UMa superoutburst: new observations Dear Colleagues, We have received new data from Jochen Pietz and Lew Cook. The data by the Kyoto team are being reduced. All observations show great humps and eclipses, making the current observation one of the best coverage and quality of the data on all (except WZ Sge 2001) targets. Needless to say, IY UMa is one of the most important eclipsing SU UMa-type dwarf nova, which has been already nominated as a most suitable target for the present and future huge telescopes! Please keep the current excellent coverage over everything!! More information of the data reduction will be reported by Uemura-san. Regards, Taichi Kato VSNET Collaboration team