U Mon rising from primary minimum YYYYMMDD(UT) mag observer 20001219.569 73 (Y. Tsuchiyama) 20001221.000 75 (L. Kiss) 20001222.560 73 (T. Kato) 20001222.649 72 (Y. Tsuchiyama) 20001222.651 72 (R. Naito) 20001223.589 74 (Y. Atobe) 20001223.603 68 (H. Maehara) 20001223.612 67 (T. Watanabe) 20001223.644 73 (T. Kato) 20001223.924 71 (E. Eker) 20001224.080 70 (S. Otero) 20001224.599 72 (T. Kato) 20001224.937 69 (E. Eker) 20001225.644 64 (H. Maehara) 20001225.687 67 (T. Watanabe) 20001226.080 65 (S. Otero) 20001226.582 65 (Y. Watanabe) 20001226.683 66 (T. Kato) 20001227.574 65 (T. Kato) 20001228.651 64 (T. Kato) 20001229.598 62 (T. Kato)