CCD magnitude estimates by VSOLJ members object YYYYMMDD(UT) mag code TCPJ20100517+1303006 20170703.978 16.16C Kai.VSOLJ TCPJ20100517+1303006 20170704.985 17.24C Kai.VSOLJ Observer: Kiyoshi Kasai (Switzerland) Instruments: 28cmSCT + ST-7XME