HL CMa outburst YYYYMMDD(UT) mag observer 20010409.068 <130 (M. Simonsen) 20010409.423 <120 (R. Stubbings) 20010411.860 <137 (J. Ripero) 20010412.390 <120 (R. Stubbings) 20010412.410 <130 (P. Nelson) 20010413.385 <130 (P. Nelson) 20010413.398 <120 (R. Stubbings) 20010413.846 <137 (J. Ripero) 20010414.853 127 (J. Ripero)