TITLE:   GCN CIRCULAR
NUMBER:  18814
SUBJECT: GRB 160101A: CALET Gamma-Ray Burst Monitor detection
DATE:    16/01/04 07:54:40 GMT
FROM:    Takanori Sakamoto at AGU  <tsakamoto@phys.aoyama.ac.jp>

Y. Yamada, A. Yoshida, T. Sakamoto, I. Takahashi, Y. Kawakubo, K. Senuma, 
M. Moriyama (AGU), K. Yamaoka (Nagoya U), S. Nakahira (JAXA), 
Y. Asaoka, S. Ozawa, S. Torii (Waseda U), Y. Shimizu, T. Tamura (Kanagawa U), 
M. L. Cherry (LSU), S. Ricciarini (U of Florence), P. S. Marrocchesi (U of Siena) 
and the CALET collaboration:

The long-duration GRB 160101A (Itoh et al. GCN Circ. 18793; Veres et al. GCN Circ. 18796) 
triggered the CALET Gamma-Ray Burst Monitor (CGBM) at 00:43:54.04 UT on 1 January 2016.  
The clear burst signal was detected by all instruments.  

The light curve of the HXM shows a multiple peak structure starting at T0-2 sec and 
ending at T0+8 sec.  The T90 duration measured by the HXM1 data is 
7.2 +- 1.3 sec (7-100 keV).  

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