Kawakubo, YutaCannady, NicholasHams, ThomasKrizmanic, John F.Sakai, KenichiCALET Collaborationet al2022-08-112022-08-112019-04-15http://hdl.handle.net/11603/25371APS April Meeting 2019, Saturday–Tuesday, April 13–16, 2019; Denver, ColoradoCALET Collaboration Authors: O. Adriani, Y. Akaike, K. Asano, Y. Asaoka, E. Berti, G. Bigongiari, W. R. Binns, M. Bongi, P. Brogi, A. Bruno, J. H. Buckley, N. Cannady, G. Castellini, C. Checchia, M. L. Cherry, G. Collazuol, K. Ebisawa, A. W. Ficklin, H. Fuke, S. Gonzi, T. G. Guzik, T. Hams, K. Hibino, M. Ichimura, K. Ioka, W. Ishizaki, M. H. Israel, K. Kasahara, J. Kataoka, R. Kataoka, Y. Katayose, C. Kato, N. Kawanaka, Y. Kawakubo, K. Kobayashi, K. Kohri, H. S. Krawczynski, J. F. Krizmanic, P. Maestro, P. S. Marrocchesi, A. M. Messineo, J.W. Mitchell, S. Miyake, A. A. Moiseev, M. Mori, N. Mori, H. M. Motz, K. Munakata, S. Nakahira, J. Nishimura, G. A. de Nolfo, S. Okuno, J. F. Ormes, N. Ospina, S. Ozawa, L. Pacini, P. Papini, B. F. Rauch, S. B. Ricciarini, K. Sakai, T. Sakamoto, M. Sasaki, Y. Shimizu, A. Shiomi, P. Spillantini, F. Stolzi, S. Sugita, A. Sulaj, M. Takita, T. Tamura, T. Terasawa, S. Torii, Y. Tsunesada, Y. Uchihori, E. Vannuccini, J. P. Wefel, K. Yamaoka, S. Yanagita, A. Yoshida, K. Yoshida, and W. V. ZoberThe CALorimetric Electron Telescope (CALET) includes a Gamma-ray Burst Monitor (CGBM) to enhance the gamma-ray observations of the calorimeter, the main CALET detector. CGBM consists of two kinds of scintillation detectors, the Hard X-ray Monitor (HXM) consisting of LaBr3(Ce) and the Soft Gamma-ray Monitor (SGM) consisting of BGO. Together, the two detectors cover the X-ray/gamma-ray energy range 7 keV - 20 MeV. CGBM has observed gamma-ray bursts (GRBs) since October 2015. So far, CGBM has detected ~140 GRBs. The fraction of long and short GRBs are ~90% and ~10%. In this paper, we describe the current operational status of CGBM, the GRB analysis results including temporal and spectral analysis, and the search for gravitational wave counterparts.16 pagesen-USThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.Public Domain Mark 1.0Text