SN1999by early photometry (update) YYMMDD(UT) mag observer 990425.199 <193C (KAIT (from IAUC)) 990428.878 163:C (R. Arbour (from IAUC)) 990430.199 157C (KAIT (from IAUC)) 990430.826 155 (E. Berko) 990430.874 151C (R. Arbour (from IAUC)) 990501.199 150C (KAIT (from IAUC)) 990501.885 145 (M. Armstrong (from IAUC)) 990502.044 142 (M. Moilanen) 990502.549 14.03C (Y. Sano) 990502.872 14.31I (D. Hanzl) 990502.872 14.42V (D. Hanzl) 990502.872 14.69B (D. Hanzl) 990503.875 140 (J. Ripero) 990503.887 143 (R. J. Bouma) 990503.887 143 (G. Comello) 990503.916 14.15C (D. Rodriguez) 990504.137 144 (B. King)