V660 Her superoutburst update YYYYMMDD(UT) mag observer 20010522.010 <153 (G. Poyner) 20010522.947 <153 (P. A. Dubovsky) 20010522.958 <156 (M. Reszelski) 20010523.033 <153 (G. Poyner) 20010523.953 <156 (G. Poyner) 20010523.964 <156 (M. Reszelski) 20010524.948 <156 (M. Reszelski) 20010524.965 155 (P. A. Dubovsky) 20010525.921 153 (P. A. Dubovsky) 20010525.978 147 (M. Reszelski) 20010529.964 <153 (G. Poyner) 20010530.224 <145 (M. Simonsen) 20010530.969 158: (C. P. Jones) 20010530.980 <153 (M. Reszelski) 20010531.965 144 (C. P. Jones) 20010607.284 <141 (M. Simonsen) 20010607.892 147 (M. Reszelski) 20010607.983 147 (G. Poyner) 20010608.247 <141 (M. Simonsen) 20010608.963 146 (C. P. Jones) 20010609.217 <141 (M. Simonsen) 20010610.981 154 (G. Poyner)