1140002

We ask for INTEGRAL TOO observations of one blazar in outburst in AO-11 for up to 600 ks conditional to stringent triggering criteria based on X-ray brightening as detected by the current high energy missions including INTEGRAL itself Swift MAXI and NuSTAR. Coordinated INTEGRAL and multiwavelength observations will guarantee the coverage of a broad energy range and allow us to follow the evolution of the overall spectral energy distribution (SED) during one or more flaring episodes. We will thus measure accurately the high energy spectrum and monitor the hard X-ray light curve and thus constrain the time-dependent parameters of the emission models. In past INTEGRAL AOs we have triggered similar observations as part of multi wavelength campaigns and have demonstrated that for bright X-ray sources (> 20 mCrab in 2-10 keV) IBIS can map the interday hard X-ray variability. [truncated! Please see actual data for full text]