YZ Cnc superoutburst, further rise YYYYMMDD(UT) mag observer 20001222.226 145 (G. Comello) 20001222.380 <142 (M. Simonsen) 20001222.603 <136 (R. Stubbings) 20001222.794 142 (A. Pearce) 20001222.872 <136 (E. Muyllaert) 20001222.932 <136 (P. A. Dubovsky) 20001223.578 <133 (R. Stubbings) 20001223.747 <133 (H. Maehara) 20001223.785 144 (A. Pearce) 20001224.789 118 (A. Pearce) 20001225.733 114 (H. Maehara) 20001225.875 123 (G. Comello) 20001226.706 116 (R. Stubbings) 20001227.783 112 (H. Maehara) 20001227.949 107 (J. Gunther) 20001227.951 113 (J. Ripero) 20001228.333 108 (M. Simonsen)