{
  "bibcode": "2019GCN.26617....1D",
  "body": "Y. F. Du, Y. G. Zheng, C. Cai, Q. Luo, S. Xiao, Q. B. Yi, \nY. Huang, C. K. Li, G. Li, X. B. Li, J. Y. Liao, S. L. Xiong,\nC. Z. Liu, X. F. Li, Z. W. Li, Z. Chang, A. M. Zhang, \nY. F. Zhang, X. F. Lu, C. L. Zou (IHEP), Y. J. Jin, \nZ. Zhang (THU), T. P. Li (IHEP/THU), F. J. Lu, L. M. Song, \nM. Wu, Y. P. Xu, S. N. Zhang (IHEP), \nreport on behalf of the Insight-HXMT team:\n\nAt 2019-12-27T17:21:44.14 (T0), Insight-HXMT/HE detected \nGRB 191227B (trigger ID: HEB191227723) in a routine search of the data, \nwhich was also triggered by Fermi/GBM, IPN and Konus-Wind (GCN #26612).\n\nThe Insight-HXMT/HE light curve mainly consists of multiple \npulses with a duration (T90) of 0.161 s measured from T0+0.010 s. \nThe 1-ms peak rate, measured from T0+0.045 s, is 50,544 cnts/sec. \nThe total counts from this burst is 4123 counts. But it should be\nnoted that the Insight-HXMT/HE detection suffers from saturation \nwhen the count rate exceeds ~20,000 cnts/sec. The uncorrected \nlight curve can be found at:\nURL_LC: http://www.hxmt.org/images/GRB/HEB191227723_lc.jpg \n\nAll measurements above are made with the CsI detectors operating in the \nregular mode with the energy range of about 80-800 keV (deposited energy). \nOnly gamma-rays with energy greater than about 200 keV can penetrate \nthe spacecraft and leave signals in the CsI detectors installed inside \nof the telescope. \n\nInsight-HXMT is the first Chinese space X-ray telescope, which was \nfunded jointly by the China National Space Administration (CNSA) and \nthe Chinese Academy of Sciences (CAS). \nMore information about it could be found at: \nhttp://www.hxmt.org.",
  "circularId": 26617,
  "createdOn": 1577763794000,
  "email": "duyunfei@ihep.ac.cn",
  "subject": "GRB 191227B: Insight-HXMT/HE observation",
  "submitter": "Yunfei Du at IHEP  <duyunfei@ihep.ac.cn>",
  "eventId": "GRB 191227B"
}