{
  "bibcode": "2020GCN.28714....1U",
  "body": "A. Ursi (INAF/IAPS), M. Pilia (INAF/OA-Cagliari), M. Tavani (INAF/IAPS, and\nUniv. Roma Tor Vergata), A. Argan, M. Cardillo, C. Casentini, Y.\nEvangelista, G. Piano (INAF/IAPS), F. Lucarelli, C. Pittori, F. Verrecchia\n(SSDC, and INAF/OAR), A. Bulgarelli, V. Fioretti, F. Fuschino, N.\nParmiggiani (INAF/OAS-Bologna), M. Marisaldi (INAF/OAS-Bologna, and Bergen\nUniversity), A. Trois (INAF/OA-Cagliari), I. Donnarumma (ASI), F. Longo\n(Univ. Trieste and INFN Trieste), A. Giuliani (INAF/IASF-Mi), report on\nbehalf of the AGILE Team:\n\nThe AGILE Mini-CALorimeter (MCAL) detected GRB 201020B at T0 = 2020-10-20\n17:34:03.78 +/- 0.01 s (UTC), reported by Fermi/GBM (GCNs #28702 and\n#28710).\n\nThe event lasted about 5 s and released a total number of 3250 counts in\nthe detector (in the 0.4-100 MeV energy range), above an average background\nrate of 550 Hz. The MCAL light curve can be found at\nhttp://www.agilescienceapp.it/notices/GRB_069336_525794310.907011.png .\n\nThe time-integrated spectrum of the burst can be fitted in the energy range\n0.4-20 MeV with a single power-law with ph.ind. = -2.78 -0.03/+0.04,\nresulting in a reduced chi-squared of 1.05 (89 d.o.f.) and a fluence of\n4.56e-06 ergs/cm^2 (90% confidence level), in the same energy range.\n\nThe burst is clearly visible in the AGILE scientific ratemeters of the\nSuperAGILE (SA; 20-60 keV), MiniCALorimeter (MCAL; 0.4-100 MeV), and\nAntiCoincidence (AC; 50-200 keV) detectors. The event lasted ~27 s and\nreleased a total number of 5856 counts in the SA detector (above a\nbackground rate of 80 Hz); it lasted ~17.5 s and released a total number of\n66750 counts in the AC detector (above a background rate of 3670 Hz); it\nlasted ~5 s and released a total number of 7506 counts in the MCAL detector\n(above a background rate of 1260 Hz). The AGILE ratemeter light curves can\nbe found at http://www.agilescienceapp.it/notices/GRB_201020B_AGILE_RM.png .\n\nThe AGILE-MCAL detector is a CsI detector with a 4 pi FoV, sensitive in the\nenergy range 0.4-100 MeV. Additional analysis of AGILE data is in progress.\nAutomatic MCAL GRB alert Notices can be found at:\nhttps://gcn.gsfc.nasa.gov/agile_mcal.html.",
  "circularId": 28714,
  "createdOn": 1603269811000,
  "email": "alessandro.ursi@gmail.com",
  "subject": "GRB 201020B: AGILE detection",
  "submitter": "Alessandro Ursi at INAF/IAPS  <alessandro.ursi@gmail.com>",
  "eventId": "GRB 201020B"
}