GCN Circular 29767
Subject
GRB 210406A: A long GRB detected by INTEGRAL
Date
2021-04-06T17:58:19Z (4 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 60 s has been detected by IBAS in the
IBIS/ISGRI data at 17:11:22 UT of April 6, 2021.
The refined coordinates (J2000) are:
R.A.= 132.4589 deg
DEC.= +76.5322 deg
with an uncertainty of 1.5 arcmin (90% c.l.).
Due to telemetry saturation, we can derive only lower limits on the fluence
and peak flux (20-200 keV).
These are >1.2e-6 erg/cm2 and >1.6 ph/cm2/s (1-s integration time),
respectively.
A plot of the light curve will be posted at
http://ibas.iasf-milano.inaf.it/IBAS_Results.html