Fig. 1

Long-term (Jan 1996 – Dic 2002) RXTE/ASM 2-12 keV light curve (gray). The data were retrieved from HEASARC public data base. The time of BeppoSAX pointed observations (MDJs = 51 766/7 and 51 820/1) are indicated with arrows. During two observation the source intensity changes from ~300 mCrab to ~30 mCrab. Overall the source intensity can reach ~500 mCrab.
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