Chandra 0.3–7 keV light curve for HST-1 during the same time interval as in Fig. 2. The black points are considered to belong to the low state (L). The dashed lines, on the other hand, separate the high state from January 16, 2002 (MJD 52290), to May 14, 2010 (MJD 55330), into five subsections, that are labelled H1, H2, H3, H4, and H5. The data from April 01, 2009 to May 14, 2010, belong to a transition period between high and low state, and have thus been included in both L and H5 calculations.
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