GCN Circular 22434
Subject
GRB 180222A: A long GRB detected by INTEGRAL
Date
2018-02-22T14:19:25Z (6 years ago)
From
Sandro Mereghetti at IASF-Milano/INAF <sandro@iasf-milano.inaf.it>
S.Mereghetti (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) on behalf of the IBAS Localization Team
report:
a gamma ray burst lasting about 20 s has been detected by IBAS in the
IBIS/ISGRI data at 13:10:02 UT of February 22, 2018
The refined coordinates (J2000) are:
R.A.= 256.5418 deg
DEC.= -36.8016 deg
with an uncertainty of 1.5 arcmin (90% c.l.).
The burst had a peak flux of about 1 counts/cm2/s (20-200 keV, 1-s
integration time) and a fluence in the same energy range of about 6e-7
erg/cmq.
This burst was also detected by the Swift/BAT (Cannizzo et al., GCN
22433).
A plot of the light curve will be posted at
http://ibas.iasf-milano.inaf.it/IBAS_Results.html