TITLE:   GCN CIRCULAR
NUMBER:  36578
SUBJECT: GRB 240529A: Insight-HXMT/HE detection
DATE:    24/05/31 02:38:28 GMT
FROM:    tanwj@ihep.ac.cn

Wenjun Tan, Shaolin Xiong , Xiaobo Li and Chengkui Li
report on behalf of the Insight-HXMT team:

At 2024-05-29T02:58:31.000 (T0), Insight-HXMT/HE detected
GRB 240529A(trigger ID: HEB240529123) in a routine search of the data,
which was also observed by Swift (Eyles-Ferris et al. GCN 36556; C. B. Markwardt et al. GCN 36566).

The Insight-HXMT/HE light curve consists of multiple
pulses with a duration (T90) of 66.23s measured from T0-37.26 s.
The 1s peak rate, measured from T0-0.159 s, is 3138 cnts/sec.
The total counts from this burst is 53027 counts.
URL_LC: https://twikinew.ihep.ac.cn/pubhxmt/HXMT/GRBList/HEB240529123_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
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://hxmtweb.ihep.ac.cn/