TITLE:   GCN CIRCULAR
NUMBER:  32947
SUBJECT: GRB 221114A: CALET Gamma-Ray Burst Monitor detection
DATE:    22/11/18 18:23:28 GMT
FROM:    Yuta Kawakubo at Louisiana State U./CALET  <kawakubo1@lsu.edu>

P. S. Marrocchesi (U of Siena), A. Yoshida, T. Sakamoto, S. Sugita (AGU),
Y. Kawakubo (LSU), K. Yamaoka (Nagoya U), S. Nakahira (RIKEN), 
Y. Asaoka (ICRR), S. Torii, Y. Akaike, K. Kobayashi (Waseda U),
Y. Shimizu, T. Tamura (Kanagawa U), N. Cannady (GSFC/UMBC),
M. L. Cherry (LSU), S. Ricciarini (U of Florence),
and the CALET collaboration:

The long GRB 221114A (GECAM GCN Notice #67) triggered the CALET Gamma-ray
Burst Monitor (CGBM) at 15:19:37.44 UTC on 14 November  2022
(http://cgbm.calet.jp/cgbm_trigger/flight/1352474360/index.html).
The burst signal was seen by all CGBM detectors.

The burst light curve shows a single pulse which starts
at T+1.4 sec, peaks at T+17.6 sec, and ends at T+20.1 sec.
The T90 and T50 durations measured by the SGM data are 15.9 +/- 1.0 sec
and 8.5 +/- 0.5 sec (40-1000 keV), respectively.

The ground processed light curve is available at

http://cgbm.calet.jp/cgbm_trigger/ground/1352474360/

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