TITLE: GCN CIRCULAR NUMBER: 25424 SUBJECT: Fermi GBM-190816: AGILE in SAA at T0 DATE: 19/08/21 10:03:37 GMT FROM: Francesco Longo at U of Trieste,INFN Trieste F. Longo (Univ. Trieste, and INFN Trieste), C.Pittori, F. Verrecchia, F.Lucarelli (SSDC, and INAF/OAR), M. Tavani (INAF/IAPS, and Univ. Roma Tor Vergata), M. Cardillo, C. Casentini, G. Piano, A. Ursi (INAF/IAPS), A. Bulgarelli, V. Fioretti, N. Parmiggiani (INAF/OAS-Bologna), M. Pilia (INAF/OA-Cagliari) report on behalf of the AGILE Team: In response to Fermi GBM-190816 sub threshold event, corresponding to a possible compact binary merger candidate at LVC GW trigger time T0 = 2019-08-16 21:22:13.027 UT (GCN 25406), analysis of AGILE data shows that the satellite at T0 was in the South Atlantic Anomaly (SAA). Additional analysis of AGILE data is in progress.