MKN421 recent (cont'd) YYYYMMDD(UT) mag observer 20001223.657 132 (T. Watanabe) 20001227.972 130 (J. Ripero) 20001229.824 132 (H. Itoh) 20010103.698 131 (T. Watanabe) 20010104.606 131 (T. Watanabe) 20010105.644 131 (T. Watanabe) 20010107.058 129 (G. Poyner) 20010113.964 129 (G. Poyner) 20010116.026 130 (G. Poyner) 20010117.613 131 (T. Watanabe)