HS Vir outburst YYYYMMDD(UT) mag observer 20010131.715 <148 (R. Stubbings) 20010202.696 <148 (R. Stubbings) 20010202.819 <156 (A. Pearce) 20010203.817 <154 (A. Pearce) 20010207.819 <149 (A. Pearce) 20010213.794 <150 (A. Pearce) 20010216.589 148 (R. Stubbings)