Positions of all observation in the ṁ_in−r_J plane for the four outbursts of GX 339-4 covered by RXTE/PCA. All data points are shown in gray, and the constrained observations (see text) are color-coded as in Fig. 2. The points in pink are radio-constrained observations of the 2008–2009 failed outburst. Points A–E are placed at the average locations (of the four outbursts) for each phase to illustrate their approximate locations.