GCN Circular 33082
Subject
GRB 221218A: a long GRB detected by INTEGRAL
Date
2022-12-18T21:56:21Z (2 years ago)
From
Sandro Mereghetti at IASF-Milano/INAF <sandro.mereghetti@inaf.it>
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:
a gamma ray burst lasting about 140 s has been detected by IBAS in the
IBIS/ISGRI data at 08:14:10 UT of 2022 December 18.
The refined coordinates (J2000) are:
R.A.= 350.6495 deg
DEC.= -4.2477 deg
with an uncertainty of 1 arcmin (90% c.l.).
The burst had a peak flux of 1 ph/cm2/s (20-200 keV, 1-s integration time)
and a fluence in the same energy range of about 5e-6 erg/cmq.
A plot of the light curve will be posted at
http://ibas.iasf-milano.inaf.it/IBAS_Results.html