{
  "bibcode": "2018GCN.23259....1P",
  "body": "A. V. Penacchioni, A. Yoshida, T. Sakamoto, V. Pal'shin,\nS. Sugita, Y. Kawakubo, A. Tezuka, S. Matsukawa, H. Onozawa,\nT. Ito, H. Morita, Y. Sone (AGU), K. Yamaoka (Nagoya U),\nS. Nakahira (RIKEN), I. Takahashi (IPMU), Y. Asaoka,\nS. Ozawa, S. Torii (Waseda U), Y. Shimizu, T. Tamura (Kanagawa U),\nW. Ishizaki (ICRR), M. L. Cherry (LSU),\nS. Ricciarini (U of Florence), P. S. Marrocchesi (U of Siena)\nand the CALET collaboration:\n\nThe MAXI GRB 180923A (Maruyama et al., GCN Circ. 23257) was detected\nin ground analysis of the CALET Gamma-ray Burst Monitor (CGBM) data\nnear the MAXI/GSC trigger time at T0=04:08:25 UT on 23 September 2018.\nThe burst signal was seen by all CGBM detectors.\n\nThe burst light curve shows a multi-peaked structure which starts\nat T-18 sec and ends at T+107 sec.\nThe T90 and the T50 durations measured by the SGM data are\n122 +- 15 sec and 95 +- 58 sec (40-1000 keV), respectively.\nThe significant emission is seen only below ~100 keV.\n\nThe ground processed light curve is available at\n\nhttp://cgbm.calet.jp/cgbm_trigger/ground/1221710834/\n\nThe CALET data used in this analysis are provided by\nthe Waseda CALET Operation Center located at the Waseda University.",
  "circularId": 23259,
  "createdOn": 1537747840000,
  "email": "val@phys.aoyama.ac.jp",
  "subject": "GRB 180923A: CALET Gamma-Ray Burst Monitor detection",
  "submitter": "Valentin Pal'shin at AGU  <val@phys.aoyama.ac.jp>",
  "eventId": "GRB 180923A"
}