CCD magnitude estimates by VSOLJ members object YYYYMMDD(UT) mag code ASASSN-17cc 20170217.559 <16.73C Ioh.VSOLJ LMIRZ 20170217.652 16.41C Ioh.VSOLJ SDSSJ1152 20170217.681 15.87C Ioh.VSOLJ Observer: Hiroshi Itoh (Tokyo, Japan) Instruments: 30cmSCT + SBIG ST-9XE 20cmSCT + ATIK 414EX