V426 Oph outburst YYYYMMDD(UT) mag observer 20010727.172 126 (M. Simonsen) 20010728.920 121 (P. A. Dubovsky) 20010729.894 128 (E. Muyllaert) 20010730.969 127 (E. Muyllaert) 20010801.887 119 (E. Muyllaert) 20010801.967 117 (M. Reszelski)