MKN421 bright state continues YYYYMMDD(UT) mag observer 20010311.849 125 (J. Ripero) 20010312.853 124 (J. Ripero) 20010312.872 130 (G. Poyner) 20010312.919 126V (D. Rodriguez) 20010313.867 129 (G. Poyner) 20010313.901 127 (M. Reszelski) 20010313.951 131 (H. McGee) 20010314.878 129 (G. Poyner) 20010314.966 124 (J. Ripero) 20010315.583 128 (H. Itoh) 20010315.864 125 (J. Ripero) 20010315.947 12.65V (D. Rodriguez) 20010315.996 127 (M. Reszelski) 20010316.956 128 (M. Reszelski) 20010318.276 123 (M. Simonsen) 20010318.439 127 (T. Watanabe) 20010318.462 127 (T. Watanabe) 20010318.482 128 (T. Watanabe) 20010318.499 127 (T. Watanabe) 20010319.290 128 (M. Simonsen) 20010319.719 129 (H. Itoh) 20010319.890 128 (E. Muyllaert) 20010321.942 128 (M. Reszelski) 20010322.219 126 (M. Simonsen) 20010323.071 126 (M. Simonsen)