CCD magnitude estimates by VSOLJ members object YYYYMMDD(UT) mag code SDSSJ082409.73+493124.4 20070311.60600 16.49C Njh.VSOLJ SN2007aa 20070311.74896 15.87C Njh.VSOLJ SN2007af 20070311.79184 14.02C Njh.VSOLJ Observer: Kazuhiro Nakajima (Mie, Japan) Instruments: 25cmSC + CV-04 + No filter