CCD magnitude estimates by VSOLJ members object YYYYMMDD(UT) mag code ASASSN-18fk 20180324.679 13.14C Ioh.VSOLJ ASASSN-18fk 20180325.641 13.20C Ioh.VSOLJ Observer: Hiroshi Itoh (Tokyo, Japan) Instruments: 30cmSCT + SBIG ST-9XE