CCD magnitude estimates by VSOLJ members object YYYYMMDD(UT) mag code ASASSN-17gm 20170522.72422 186V Mdy.VSOLJ MASTER_OT_J174305.70+231107.8 20170522.772 17.28C Mdy.VSOLJ SwiftJ1357.2-0933 20170522.641 16.87C Mdy.VSOLJ Observer: Yutaka Maeda (Nagasaki, Japan) Instruments: 35cmSCT + SBIG ST-10XME