Panel a: V versus V − H CMD of the 2002–2003 outburst. The filled upward-facing pink triangles correspond to the RPh, the filled blue circles indicate the RHS, the filled downward-facing green triangles represent the HtS transition, the filled orange squares indicate the SS, the open upward-facing green triangles correspond to the StH transition, the open blue circles indicate the DHS, the open downward-facing pink triangles correspond to the DPh, and the black crosses indicate the Q. Contours are the same as in Fig. 4. The typical 1σ errors are shown in the bottom left corner: the top orange cross corresponds to the bright states and is comparable to the plot symbol size; the bottom black cross corresponds to the quiescent state data, where observational errors are substantial. Panel b: ONIR H (top) and V (bottom) light curves of the same outburst. Symbols are the same as in panel a. Errors are 1σ and error bars are comparable to the symbols size. The solid black line represents the model, fitted to the part of the SS data. The gray area around the line denotes 1σ errors and also includes the contribution from the intrinsic scatter. Panel c: ASM A X-ray light curve.