TCP J07363658+4151215 superhump period (=ASASSN-21um, vsnet-alert 26400) Using observations since Nov. 9 (Tamas Tordai and Kiyota-san), the superhump period is 0.08591(4) d. The period is unusually long for the outburst amplitude, but the large amplitude of superhumps excludes a low mass-ratio object.