GRB 210707A: A long GRB detected by INTEGRAL

a gamma ray burst lasting about 50 s has been detected by IBAS in the IBIS/ISGRI data at 22:25:05 UT of 2021 July 7. The corresponding WEAK type Alert Packet with the burst position was distributed in real time (Alert n. 9296). The refined coordinates (J2000) are: R.A.= 192.5460 deg DEC.= -63.2763 deg with an uncertainty of 3 arcmin (90% c.l.). The burst had a peak flux of 0.2 ph/cm2/s (20-200 keV, 1-s integration time) and a fluence in the same energy range of about 5e-7 erg/cmq. A plot of the light curve is posted at http://ibas.iasf-milano.inaf.it/IBAS_Results.html