TITLE: GCN CIRCULAR NUMBER: 28561 SUBJECT: INTEGRAL sub-threshold detection of GRB 201006A DATE: 20/10/06 07:51:46 GMT FROM: Sandro Mereghetti at IASF-Milano/INAF S.Mereghetti (INAF, IASF-Milano), D.Gotz (CEA, Saclay), C.Ferrigno, E.Bozzo, V.Savchenko (ISDC, Versoix), L.Ducci (IAAT, Germany and ISDC, Versoix) and J.Borkowski (CAMK, Torun) report: GRB 201006A detected by Swift (Gropp et al., GCN 28560) has been also revealed as a sub-threshold GRB by IBAS in the IBIS/ISGRI data. The corresponding WEAK type Alert Packet with the burst position was distributed in real time (Alert n. 8745). The burst coordinates (J2000) obtained with the offline analysis of the IBIS/ISGRI data are: R.A.= 61.9045 deg DEC.= +65.1478 deg with an uncertainty of 3 arcmin (90% c.l.).