V436 Cen outburst again Very anomalous sequence of small outbursts! YYMMDD(UT) mag observer 990502.450 <136 (P. Williams) 990503.450 <141 (P. Williams) 990505.700 <136 (D. Overbeek) 990506.411 150 (R. Stubbings) 990508.588 124 (R. Stubbings) 990509.715 134 (D. Overbeek) 990509.744 134 (D. Overbeek) 990509.906 132 (B. Monard) 990510.406 135 (R. Stubbings) 990510.710 <142 (B. Monard) 990511.403 146 (R. Stubbings) 990513.495 152 (R. Stubbings) 990513.712 142 (B. Monard) 990514.380 <148 (R. Stubbings) 990515.447 150 (R. Stubbings) 990515.849 <142 (B. Monard) 990516.719 141 (B. Monard)