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TITLE:   GCN CIRCULAR
NUMBER:  22050
SUBJECT: GRB 171013B CALET Gamma-Ray Burst Monitor detection
DATE:    17/10/26 00:55:07 GMT
FROM:    Takanori Sakamoto at AGU  <tsakamoto@phys.aoyama.ac.jp>

A. Yoshida, T. Sakamoto, 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 171013B (Fermi-GBM trigger #529575887) triggered the
CALET Gamma-ray Burst Monitor (CGBM) at 08:24:45.797 on 13 October 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 T0 sec,
peaks at T+17 sec and ends at T+26 sec.  The T90 duration measured by the
SGM data is 18.9 +- 1.5 sec (40-1000 keV).

The light curve is available at

http://cgbm.calet.jp/cgbm_trigger/flight/1191918235/

The CALET data used in this analysis are provided by the Waseda CALET Operation
Center located at the Waseda University.