TITLE:   GCN CIRCULAR
NUMBER:  6211
SUBJECT: IBAS Alert n. 4176: not a GRB
DATE:    07/03/18 08:22:08 GMT
FROM:    Sandro Mereghetti at IASF/CNR  <sandro@iasf-milano.inaf.it>

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

IBAS Alert n. 4176 is not due to a GRB.  It has been caused by a known 
source. The attitude information was incorrect at the time of the trigger.