{
  "bibcode": "2023GCN.33325....1C",
  "body": "C. Casentini (INAF/IAPS), M. Tavani (INAF/IAPS, and Univ. Roma Tor Vergata),\nC. Pittori, F. Lucarelli, F. Verrecchia (SSDC, and INAF/OAR), A. Argan,\nM. Cardillo, Y. Evangelista, L. Foffano, E. Menegoni, G. Piano (INAF/IAPS),\nA. Addis, L. Baroncelli, A. Bulgarelli, A. Di Piano, V. Fioretti, G.\nPanebianco,\nN. Parmiggiani (INAF/OAS-Bologna), M. Romani (INAF/OA-Brera), M. Marisaldi\n(INAF/OAS-Bologna, Bergen University), F. Longo (Uni. Trieste, INFN\nTrieste),\nM. Pilia, A. Trois (INAF/OA Cagliari), I. Donnarumma, A.Ursi (ASI), A.\nGiuliani\n(INAF/IASF-Mi) and P. Tempesta (TeleSpazio), report on behalf of the AGILE\nTeam:\n\nThe AGILE satellite detected the GRB 230209B at T0 = 2023-02-09 22:32:37 s\n(UTC),\nreported by Fermi/GBM (GCN #33310, GCN #33324), Swift/BAT (GCN #33315),\nIPN network (GCN #33323) and Global MASTER-Net (GCN #33311).\n\nThe burst is clearly visible in the AGILE scientific ratemeters of the\nMiniCALorimeter\n(MCAL; 0.4-100 MeV) and in four out of five panels of the AntiCoincidence\nsystem\n(AC Top, 50-200 keV; AC Lat, 80-200 keV). The event lasted about 6.2 s and\nit\nreleased a total number of 4642 counts in the MCAL detector (above a\nbackground rate\nof 656 Hz), and 25551 counts in the AC Top detector (above a background\nrate of\n3547 Hz). The AGILE ratemeters light curves can be found at:\nhttp://www.agilescienceapp.it/notices/GRB230209B_AGILE_RM_ND.png.\n\nThe event also triggered a high-time resolution MCAL data acquisition, from\nT0-4 s\nto T0+9 s (UTC), and released 2587 counts in the detector, above a\nbackground rate\nof 579.10 Hz. The MCAL light curve can be found at:\nhttp://www.agilescienceapp.it/notices/GRB230209B_082193_603066757.789296.png\n.\n\nAdditional analysis of AGILE data is in progress. Automatic MCAL GRB alert\nNotices\ncan be found at: https://gcn.gsfc.nasa.gov/agile_mcal.html",
  "circularId": 33325,
  "createdOn": 1676458672000,
  "email": "claudio.casentini@inaf.it",
  "subject": "GRB 230209B: AGILE detection",
  "submitter": "Claudio Casentini at INAF-IAPS  <claudio.casentini@inaf.it>",
  "eventId": "GRB 230209B"
}