TITLE: GCN CIRCULAR NUMBER: 33604 SUBJECT: GRB 230410B: AGILE detection of a burst DATE: 23/04/11 14:47:31 GMT FROM: Francesco Verrecchia at SSDC,INAF-OAR F. Verrecchia (SSDC, and INAF/OAR), C. Casentini (INAF/IAPS), M. Tavani (INAF/IAPS and Uni. Roma Tor Vergata), C. Pittori, F. Lucarelli (SSDC, and INAF/OAR), A. Argan, M. Cardillo, Y. Evangelista, L. Foffano, G. Piano (INAF/IAPS), A. Addis, L. Baroncelli, A. Bulgarelli, A. Di Piano, V. Fioretti, G.Panebianco, N. Parmiggiani (INAF/OAS-Bologna), M. Romani (INAF/OA-Brera), M. Marisaldi (INAF/OAS-Bologna, Bergen University), M. Pilia, A. Trois (INAF/OA Cagliari), I. Donnarumma, E. Menegoni, A.Ursi (ASI), A. Giuliani (INAF/IASF-Mi) and P. Tempesta (TeleSpazio), report on behalf of the AGILE Team: The AGILE Mini-CALorimeter (MCAL) detected a short burst at T0 = 2023-04-10 04:31:20.09 ± 0.01 s (UTC). The event lasted 0.13 s and released a total number of 227 counts in the MCAL detector (in the 0.4-100 MeV energy range), above a background rate of 537 Hz. The MCAL light curve can be found at: https://tools.ssdc.asi.it/ImgView/Agile/GRB230410B_083053_60818588008894555 . The burst is also clearly visible in the AGILE scientific ratemeters of the MCAL detector (0.4-100 MeV), and marginally in that of the AntiCoincidence (AC; 50-200 keV) detectors. The event lasted about 1 s and it released a total number of 1690 counts in the MCAL detector (above a background rate of 1109 Hz), 7078 counts in AC-Top detector (above a background rate of 3263 Hz), and 7271 counts in AC-Lat1 detector (above a background rate of 3171 Hz). The AGILE ratemeters light curves can be found at https://tools.ssdc.asi.it/ImgView/Agile/GRB230410B_AGILE_RM_D357 . Additional analysis of AGILE data is in progress. Automatic MCAL GRB alert Notices can be found at: https://gcn.gsfc.nasa.gov/agile_mcal.html