HL CMa outburst YYYYMMDD(UT) mag observer 20010421.842 <130 (J. Ripero) 20010423.869 <130 (J. Ripero) 20010425.485 <118 (R. Stubbings) 20010426.433 <118 (R. Stubbings) 20010426.523 128 (A. Pearce) 20010428.390 120 (R. Stubbings) 20010428.403 126 (P. Nelson)