CCD magnitude estimates by VSOLJ members object YYYYMMDD(UT) mag code SGRnova2012-4 20120707.707 76C Toa.VSOLJ SGRnova2012-4 20120709.651 81C Toa.VSOLJ Observer: Akira Takao (Fukuoka, Japan) Instruments: 200mmF4 lens + STL-6303E (unfiltered)