[vsnet-grb-info 26037] GRB 200716B: Insight-HXMT/HE detection

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  28137
SUBJECT: GRB 200716B: Insight-HXMT/HE detection
DATE:    20/07/18 10:41:55 GMT
FROM:    Shuo Xiao at IHEP  <xiaoshuo at ihep.ac.cn>

S. Xiao, C. Cai, Y. F. Du, Y. G. Zheng, Q. Luo, Q. B. Yi, 
Y. Huang, C. K. Li, G. Li, X. B. Li, J. Y. Liao, S. L. Xiong,
C. Z. Liu, X. F. Li, Z. W. Li, Z. Chang, A. M. Zhang, 
Y. F. Zhang, X. F. Lu, C. L. Zou (IHEP), Y. J. Jin, 
Z. Zhang (THU), T. P. Li (IHEP/THU), F. J. Lu, L. M. Song, 
M. Wu, Y. P. Xu, S. N. Zhang (IHEP), 
report on behalf of the Insight-HXMT team:

At 2020-07-16T07:34:29.50 (T0), Insight-HXMT/HE detected 
GRB 200716B (trigger ID: HEB200716315) in a routine search of the data, 
which also triggered Fermi-GBM (Fermi GBM team, GCN 28113) 
and AstroSat-CZTI (Gupta et al. GCN 28118).

The Insight-HXMT/HE light curve mainly consists of single 
pulse with a duration (T90) of 3.41 s measured from T0-0.64 s. 
The 1-ms peak rate, measured from T0-0.21 s, is 1026 cnts/sec. 
The total counts from this burst is 2519 counts. 
URL_LC: http://twiki.ihep.ac.cn/pub/HXMT/GRBList/HEB200716315_lc.jpg 

All measurements above are made with the CsI detectors operating in the 
regular mode with the energy range of about 80-800 keV (deposited energy). 
Only gamma-rays with energy greater than about 200 keV can penetrate 
the spacecraft and leave signals in the CsI detectors installed inside 
of the telescope. 
 
Insight-HXMT is the first Chinese space X-ray telescope, which was 
funded jointly by the China National Space Administration (CNSA) and 
the Chinese Academy of Sciences (CAS). 
More information about it could be found at: 
http://www.hxmt.org.