TITLE: GCN CIRCULAR NUMBER: 25578 SUBJECT: GRB 190829A: AGILE-GRID upper limits DATE: 19/08/30 14:42:21 GMT FROM: Giovanni Piano at INAF-IAPS G. Piano (INAF/IAPS), F. Verrecchia (SSDC, and INAF/OAR), M. Tavani (INAF/IAPS, and Univ. Roma Tor Vergata), C. Pittori (SSDC, and INAF/OAR), A. Ursi, M. Cardillo, C. Casentini (INAF/IAPS), F. Lucarelli (SSDC, and INAF/OAR), A. Bulgarelli, V. Fioretti, N. Parmiggiani (INAF/OAS-Bologna), M. Pilia (INAF/OA-Cagliari), F. Longo (Univ. Trieste, and INFN Trieste) report on behalf of the AGILE Team: AGILE observed the long GRB 190829A at T0 = 2019-08-29 19:55:53 (UT) first reported by Fermi GBM (GCN 25551) and by Swift (GCN 25552). A sub-threshold gamma-ray source (at about 2.5 sigma) was found by integrating the AGILE-GRID data from T0 to T0 + 100 s. The following preliminary GRID values of 3-sigma upper limits (ULs) are obtained above 50 MeV: - 5.5e-08 erg cm^-2 s^-1 over the time interval (T0; T0 + 100 s); - 1.9e-09 erg cm^-2 s^-1 over the time interval (T0; T0 + 5 hr). These measurements were obtained with AGILE observing a large portion of the sky in spinning mode. Additional analysis of AGILE data is in progress.