CCD magnitude estimates by VSOLJ members object YYYYMMDD(UT) mag code ASASSN-19ag 20190122.583 13.00C Ioh.VSOLJ SERV386 20190128.811 12.30C Ioh.VSOLJ SERV386 20190129.818 12.38C Ioh.VSOLJ Observer: Hiroshi Itoh (Tokyo, Japan) Instruments: 12.7cmSCT + ATIK 414EX