RZ Leo superhump refined superhump period Dear Colleagues, S. Kiyota-san (Tsukuba, Japan) has reported high-quality time-series photometry on Dec. 25. The Kyoto team also covered the later part following the UV Per run. Superhumps are still very prominently present, with narrower peaks than before. The amplitude of superhumps still amounts to 0.35 mag. The period analysis based on the data Dec. 23-25 has yielded the refined superhump period of 0.07870 d. The value seems to be now established. More detailed information on this object, during the superoutburst plateau, will be presented in vsnet-campaign or vsnet-campaign-dn, unless unusual findings come out. Regards, VSNET Collaboration team