MKN421 outburst continues YYYYMMDD(UT) mag observer 20010123.631 129 (T. Watanabe) 20010123.658 130 (T. Watanabe) 20010123.685 131 (T. Watanabe) 20010125.358 132 (M. Simonsen) 20010127.015 128 (G. Poyner) 20010127.201 130 (H. McGee) 20010127.876 131 (E. Muyllaert) 20010128.069 127 (G. Poyner) 20010128.887 129 (J. Ripero) 20010130.544 132 (T. Watanabe) 20010130.567 132 (T. Watanabe) 20010130.592 132 (T. Watanabe) 20010130.622 132 (T. Watanabe) 20010211.923 133 (J. Ripero) 20010212.894 129 (G. Poyner) 20010212.919 133 (J. Ripero) 20010212.960 125 (H. McGee) 20010213.962 127 (G. Poyner) 20010215.610 129 (T. Watanabe) 20010215.889 129 (E. Muyllaert) 20010215.897 130 (H. McGee) 20010216.510 129 (T. Watanabe) 20010216.535 128 (T. Watanabe) 20010216.558 129 (T. Watanabe) 20010216.581 129 (T. Watanabe) 20010216.608 129 (T. Watanabe) 20010216.765 129 (T. Watanabe) 20010216.815 129 (T. Watanabe) 20010216.930 129 (J. Ripero) 20010217.906 129 (G. Poyner) 20010217.933 128 (J. Ripero) 20010218.385 126 (M. Simonsen) 20010218.514 129 (T. Watanabe) 20010218.680 126 (H. Maehara) 20010219.278 127 (M. Simonsen) 20010219.628 124 (H. Itoh) 20010219.919 127V (D. Rodriguez) 20010221.919 123V (D. Rodriguez) 20010221.960 126 (J. Ripero) 20010222.919 124 (J. Ripero) 20010223.938 126 (G. Poyner) 20010224.837 126 (E. Muyllaert) 20010225.530 127 (T. Watanabe) 20010225.551 128 (T. Watanabe) 20010225.931 126 (E. Muyllaert) 20010225.949 124 (J. Ripero) 20010227.810 128 (P. A. Dubovsky)