TITLE: GCN CIRCULAR NUMBER: 27693 SUBJECT: GRB 200505A: AGILE detection DATE: 20/05/06 16:14:03 GMT FROM: Francesco Verrecchia at SSDC,INAF-OAR F. Verrecchia (SSDC, and INAF/OAR), A. Ursi (INAF/IAPS), M. Tavani (INAF/IAPS, and Univ. Roma Tor Vergata), C. Casentini (INAF/IAPS), M. Pilia (INAF/OA-Cagliari), C. Pittori (SSDC, and INAF/OAR), A. Argan, M. Cardillo, 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), 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 the long burst GRB 200505A, also reported by Fermi/GBM (GCN #27689; trigger 610415449.084498/200505994) at T0 = 2020-05-05 23:50:44 (UT). The event is visible in the scientific ratemeters of the SuperAGILE (SA; 20-60 keV) detector. The event lasted ~15 s and released a total number of ~630 counts in the SA ratemeters (above a background of ~75 Hz). The SA ratemeters light curve can be found at https://tools.ssdc.asi.it/ImgView/Agile/SARatDet1-4-SUM_SciRat_zoom200505A26 . Additional analysis of AGILE data is in progress.