CCD magnitude estimates by VSOLJ members object YYYYMMDD(UT) mag code ASASSN-18aan 20181223.653 16.33C Ioh.VSOLJ TCPJ03005508+1802290 20181223.617 13.85C Ioh.VSOLJ Observer: Hiroshi Itoh (Tokyo, Japan) Instruments: 30cmSCT + SBIG ST-9XE 20cmSCT + ATIK 414EX