{
  "bibcode": "2017GCN.22209....1Y",
  "body": "Y. Yamada, A. Yoshida, T. Sakamoto, Y. Kawakubo, M. Moriyama,\nA. Tezuka, S. Matsukawa (AGU), K. Yamaoka (Nagoya U), S. Nakahira (RIKEN),\nI. Takahashi (IPMU), Y. Asaoka, S. Ozawa, S. Torii (Waseda U), Y. Shimizu,\nT. Tamura (Kanagawa U), W. Ishizaki (ICRR), M. L. Cherry (LSU),\nS. Ricciarini (U of Florence), A. V. Penacchioni, P. S. Marrocchesi (U of Siena)\nand the CALET collaboration:\n\nThe long-duration GRB 171120A (Tohuvavohu et al., GCN circ. 22133; Longo et al.,\nGCN circ. 22136; Frederiks et al., GCN circ. 22142; Sharma et al., GCN circ. 22143;\nLi et al., GCN circ. 22149) triggered the CALET Gamma-ray Burst Monitor (CGBM)\nat 13:20:02 on 20 November 2017.  The burst signal was seen by the all CGBM\ninstruments.\n\nThe light curve of the SGM shows two largely separated episodes.  The first\nepisode starts at T0, peaks at T+1 sec and ends at T+4 sec.  The second\nepisode starts T+38 sec, peaks at T+40 sec and ends at T+46 sec.\nThe T90 duration measured by the SGM data is 44.4 +- 0.9 sec (40-1000 keV).\n\nThe light curve is available at\n\nhttp://cgbm.calet.jp/cgbm_trigger/flight/1195219087/\n\nThe CALET data used in this analysis are provided by the Waseda CALET Operation\nCenter located at the Waseda University.",
  "circularId": 22209,
  "createdOn": 1512692832000,
  "email": "tsakamoto@phys.aoyama.ac.jp",
  "subject": "GRB 171120A CALET Gamma-Ray Burst Monitor detection",
  "submitter": "Takanori Sakamoto at AGU  <tsakamoto@phys.aoyama.ac.jp>",
  "eventId": "GRB 171120A"
}