RX J2315.5-3049 analysis of Oct. 27 data Dear Colleagues, We have finally analyzed the time-series data on RX J2315.5-3049 on Oct. 27, observed by K. Matsumoto, the Kyoto team. The observation covered the later half of and the successive hour to the Ouda observation (vsnet-alert 5344). The analysis perfectly confirms the existence and the phasing of humps reported in vsnet-alert 5344. The outburst was unusually short for a superoutburst, although the detected hump signature in outburst bore all characterstics of superhumps. The analysis of the data on subsequent nights in progress. Please keep a continuous watch on this object if it will erupt in near future. Regards, Taichi Kato, Katsura Matsumoto, Makoto Uemura, Hidetoshi Iwamatsu, Ryoko Ishioka VSNET Collaboration team