TITLE:   GCN CIRCULAR
NUMBER:  20663
SUBJECT: IBAS Trigger 7691 is not a GRB
DATE:    17/02/11 20:54:02 GMT
FROM:    Sandro Mereghetti at IASF-Milano/INAF  <sandro@iasf-milano.inaf.it>

S.Mereghetti (IASF-Milano), C.Ferrigno (ISDC, Versoix) on behalf of the 
IBAS Localization Team report:

The IBAS  trigger n. 7691 at 19:33:58 of February 11, 2017 is not due to a
GRB.  It was caused by the Crab due to incorrect attitude information.