BL Lac very active! YYYYMMDD(UT) mag observer 20010513.064 145 (G. Poyner) 20010515.033 145 (P. A. Dubovsky) 20010517.034 145: (P. A. Dubovsky) 20010520.085 149 (G. Poyner) 20010521.031 145: (P. A. Dubovsky) 20010522.064 148 (G. Poyner) 20010522.976 145 (P. A. Dubovsky) 20010523.087 145 (G. Poyner) 20010524.046 148 (G. Poyner) 20010525.033 147: (M. Reszelski) 20010525.986 146 (P. A. Dubovsky) 20010530.026 149 (G. Poyner) 20010608.046 146 (G. Poyner) 20010608.331 137 (M. Simonsen) 20010611.047 138 (G. Poyner) 20010613.947 137 (J. Ripero) 20010613.998 136 (E. Muyllaert)