CCD magnitude estimates by VSOLJ members object YYYYMMDD(UT) mag code ASASSN-17fn 20170505.683 16.17C Ioh.VSOLJ BOOOV 20170505.692 16.81C Ioh.VSOLJ BOOOV 20170506.594 16.79C Ioh.VSOLJ LMIRZ 20170506.573 15.96C Ioh.VSOLJ Observer: Hiroshi Itoh (Tokyo, Japan) Instruments: 30cmSCT + SBIG ST-9XE 20cmSCT + ATIK 414EX