TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  2567
SUBJECT: IBAS GRB alerts 1739, 1740, 1741
DATE:    04/04/10 17:46:04 GMT
FROM:    Sandro Mereghetti at IASF/CNR  <sandro@mi.iasf.cnr.it>

S.Mereghetti on behalf of the IBAS localization team  reports:

IBAS Alerts n. 1739, 1740 and 1741 were not related to a GRB.

They were due to imaging artefacts caused by the Crab nebula.

We apologize for the inconvenient