TITLE: GCN CIRCULAR NUMBER: 23716 SUBJECT: GRB 190114C:Insight-HXMT/HE detection DATE: 19/01/15 15:49:09 GMT FROM: Shuo Xiao at IHEP S. Xiao, C. K. Li, X. B. Li, G. Li, J. Y. Liao, S. L. Xiong, C. Z. Liu, X. F. Li, Z. W. Li, Z. Chang, X. F. Lu, J. L. Zhao, A. M. Zhang, Y. F. Zhang, 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 2019-01-14T20:57:02.63 (T0), the Insight-HXMT/HE detected GRB 190114C (trigger ID: HEB190114872) in a routine search of the data, which was also triggered by Swift/BAT (Gropp et al., GCN23688), MAGIC (Mirzoyan et al., GCN23701), Fermi/GBM (Hamburg et al., GCN23707), AGILE/MCAL (Ursi et al., GCN23712), INTEGRAL/SPI-ACS (Minaev et al., GCN23714) and Fermi/LAT (Kocevski et al., GCN23709). The Insight-HXMT/HE light curve mainly consists of multiple pulses with a duration (T90) of 15.68 s measured from T0+0.12 s. The 1-s peak rate, measured from T0-0.01 s, is 10860.9 cnts/s. The total counts from this burst is 61531.1 counts. URL_LC: http://www.hxmt.org/images/GRB/HEB190114872_lc.jpg All measurements above are made with the CsI detectors operating in the GRB mode with the energy range of about 200-3000 keV (record 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 could be found at: http://www.hxmt.org.