V1504 Cyg outburst YYYYMMDD(UT) mag observer 20000902.799 <148 (T. Kinnunen) 20000902.905 <150 (M. Reszelski) 20000904.835 <145 (E. Muyllaert) 20000904.873 <155 (M. Reszelski) 20000905.230 <145 (M. Simonsen) 20000905.897 <148 (M. Reszelski) 20000906.135 <145 (M. Simonsen) 20000906.799 148 (T. Kinnunen) 20000906.835 <145 (E. Muyllaert) 20000906.933 <147 (P. A. Dubovsky)