TITLE:   GCN CIRCULAR
NUMBER:  38280
SUBJECT: GRB241120A: a long GRB detected by INTEGRAL
DATE:    24/11/20 07:01:13 GMT
FROM:    Diego Gotz at CEA <diego.gotz@cea.fr>

D.Gotz (CEA, Saclay), S.Mereghetti (INAF, IASF-Milano), C.Ferrigno, E.Bozzo, V.Savchenko (ISDC, Versoix), L.Ducci (IAAT, Germany and ISDC, Versoix) and J.Borkowski (CAMK, Torun) report:

a gamma ray burst lasting about 4 s has been detected by IBAS in the IBIS/ISGRI data at 05:53:58  UT of 2024 November 20. 

The refined coordinates (J2000) are:
R.A.=  194.2908 deg,
DEC.=  52.1504 deg
with an uncertainty of  1   arcmin (90% c.l.).

A preliminary analysis gives a peak flux of  about 2  ph/cm2/s (20-200 keV, 1-s integration time) and a fluence in the same energy range of about 1.3e-06 erg/cmsq.

This burst has also been detected by Fermi/GBM (GCN 38279), and its position is at 2.7° from the Fermi reported position.

A plot of the light curve will  be posted at
http://ibas.iasf-milano.inaf.it/IBAS_Results.html