Skip to main content
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 28831

GRB 201103B: AGILE detection
2020-11-04T21:05:06Z (4 years ago)
Alessandro Ursi at INAF/IAPS <>
A. Ursi (INAF/IAPS), C. Pittori, F. Verrecchia (SSDC, and INAF/OAR), M.
Tavani (INAF/IAPS, and Univ. Roma Tor Vergata), A. Argan, M. Cardillo, C.
Casentini, Y. Evangelista, G. Piano (INAF/IAPS), F. Lucarelli (SSDC, and
INAF/OAR), A. Bulgarelli, V. Fioretti, F. Fuschino, N. Parmiggiani
(INAF/OAS-Bologna), M. Marisaldi (INAF/OAS-Bologna, and Bergen University),
M. Pilia, A. Trois (INAF/OA-Cagliari), I. Donnarumma (ASI), F. Longo (Univ.
Trieste and INFN Trieste), A. Giuliani (INAF/IASF-Mi), report on behalf of
the AGILE Team:

The AGILE satellite detected a burst at T0 = 2020-11-03 18:06:45.36 +/-
0.01 s (UTC), reported by INTEGRAL/SPI-ACS (trigger ID 8788,0).

The burst is clearly visible in the AGILE scientific ratemeters of the
SuperAGILE (SA; 20-60 keV), MiniCALorimeter (MCAL; 0.4-100 MeV), and
AntiCoincidence (AC; 50-200 keV) detectors. The event lasted ~7 s and
released a total number of 1850 counts in the SA detector (above a
background rate of 90 Hz), 25200 counts in the MCAL detector (above a
background rate of 1260 Hz), and 73000 counts in the AC detector (above a
background rate of 3650 Hz). The AGILE ratemeter light curves can be found
at .

The event also triggered a partial high time resolution MCAL data

Additional analysis of AGILE data is in progress. Automatic MCAL GRB alert
Notices can be found at:

[GCN OPS NOTE(06Nov20): Due to the uncertainty of the arrival time with respect 
to the downtime window (15 hours) of the GCN Circulars processing system, 
the error in the date-time in the header of this Circular can be off anywhere from 0-15 hours.]
Looking for U.S. government information and services? Visit