TITLE: GCN CIRCULAR NUMBER: 22110 SUBJECT: GRB 171101A CALET Gamma-Ray Burst Monitor detection DATE: 17/11/09 00:31:16 GMT FROM: Takanori Sakamoto at AGU T. Sakamoto, A. Yoshida, Y. Kawakubo, M. Moriyama, Y. Yamada, A. Tezuka, S. Matsukawa (AGU), K. Yamaoka (Nagoya U), S. Nakahira (RIKEN), I. Takahashi (IPMU), Y. Asaoka, S. Ozawa, S. Torii (Waseda U), Y. Shimizu, T. Tamura (Kanagawa U), W. Ishizaki (ICRR), M. L. Cherry (LSU), S. Ricciarini (U of Florence), A. V. Penacchioni, P. S. Marrocchesi (U of Siena) and the CALET collaboration: The long-duration GRB 171101A (INTEGRAL SPI-ACS trigger #7954) triggered the CALET Gamma-ray Burst Monitor (CGBM) at 10:49:47.91 on 1 November 2017. The burst signal was seen by the all CGBM instruments. The light curve of the SGM shows a single peak. The emission starts at T+3 sec, peaks at T+4.5 sec and ends at T+15 sec. The T90 duration measured by the SGM data is 6.0 +- 0.4 sec (40-1000 keV). The light curve is available at http://cgbm.calet.jp/cgbm_trigger/flight/1193568506/index.html The CALET data used in this analysis are provided by the Waseda CALET Operation Center located at the Waseda University.