The complex behavior of the blazar 1ES1959+650 during a simultaneous multiwavelength campaign, from the optical to the X-ray to the TeV bands

We performed in May, 2006, a multiwavelength campaign on the TeV blazar 1ES 1959+650. Data from the optical, UV, softand hard-X-ray and TeV bands were obtained with the Suzaku and Swift satellites, with the MAGIC telescope and other ground based facilities. During our campaign the source exhibited a relatively high state in X-rays and optical, while in the TeV band it was at one of the lowest level so far recorded. We also monitored the source for fluxspectral variability on a time window of 10 days in the optical-UV and X-ray bands and 7 days in the TeV band. We found that the synchrotron peak, located in the X-ray band, moves to higher energies as the source gets brighter, with the X-ray fluxes above it varying more rapidly than the X-ray fluxes at lower energies. We will present these results and suggest a possible explanation for the observed variability behavior, describing the overall Spectra Energy Distribution with an homogeneous one-zone synchrotron inverse Compton emission model.