1770016

The source is a famous nearby (z = 0.07) blazar that has been in very high state since last summer. Astronomer Telegram n. 14069 and 14072 report large X-ray and gamma-ray outbursts seen with Swift/XRT and Fermi/LAT respectively that are the brightest ever observed for this source since launch of the missions. Its a historical unprecedented state. It is very bright also in optical/UV. It would be critical if INTEGRAL IBIS could observe the hard X-ray tail of the bright X-ray spectrum and monitor it at another 2-3 epochs if it is found to be bright. [truncated! Please see actual data for full text]