TITLE: GCN CIRCULAR NUMBER: 35361 SUBJECT: GRB 231215A: AGILE detection DATE: 23/12/15 20:12:46 GMT FROM: Francesco Verrecchia at SSDC,INAF-OAR <francesco.verrecchia@ssdc.asi.it> F. Verrecchia (SSDC, and INAF/OAR), C. Casentini (INAF/IAPS), C. Pittori (SSDC, and INAF/OAR), M. Tavani (INAF/IAPS, and Univ. Roma Tor Vergata), A. Argan, M. Cardillo, Y. Evangelista, L. Foffano, G. Piano (INAF/IAPS), L. Baroncelli, A. Bulgarelli, A. Ciabattoni, A. Di Piano, V. Fioretti (INAF/OAS-Bologna), G. Panebianco (Univ. Bologna - INAF/OAS Bologna), N. Parmiggiani (INAF/OAS-Bologna), F. Lucarelli (SSDC, and INAF/OAR), P.W. Cattaneo (INFN Pavia), F. Longo (Univ. Trieste, and INFN Trieste), M. Marisaldi (INAF/OAS-Bologna, and Bergen University), M. Pilia, A. Trois (INAF/OA-Cagliari), A. Ursi (ASI and INAF/IAPS), I. Donnarumma, E. Menegoni (ASI), A. Giuliani (INAF/IASF-Mi), F. Cutrona (Univ. Milano Bicocca) and P. Tempesta (TeleSpazio) report on behalf of the AGILE Team: The AGILE satellite detected the GRB 231215A at T0 = 2023-12-15 09:47:17.8 s (UTC), reported by Swift (GCNs #35343, #35345, #35357), Mondy (GCN #35349), MITSuME (GCN #35351), Astrosat (GCN #35352), HMT (GCN #35353), GROWTH (GCN #35354). The event lasted about 12 s and it released a total number of 10990 counts in the MCAL detector RM (above a background rate of 548 Hz) and 49280 counts in the AC-Top detector RM (above a background rate of 2741 Hz). The AGILE ratemeters light curves can be found at http://www.agilescienceapp.it/notices/GRB231215A_AGILE_RM_ND.png . The event also triggered a high time resolution MCAL data acquisition, from T0-22 s s to T0+10 s (UTC), and released 8436 counts in the detector, above a background rate of 510 Hz. The MCAL light curve can be found at http://www.agilescienceapp.it/notices/GRB231215A_086695_629718437.810000.png . At the T0, the event was 148 deg off-axis. 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 View this GCN Circular online at https://gcn.nasa.gov/circulars/35361. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...