{
  "bibcode": "2017GCN.21705....1C",
  "body": "M. L. Cherry (LSU), A. Yoshida, T. Sakamoto, Y. Kawakubo, M. Moriyama,\nY. Yamada, A. Tezuka, S. Matsukawa (AGU), K. Yamaoka (Nagoya U),\nS. Nakahira (RIKEN), I. Takahashi (IPMU), Y. Asaoka, S. Ozawa,\nS. Torii (Waseda U), Y. Shimizu, T. Tamura (Kanagawa U), W. Ishizaki (ICRR),\nS. Ricciarini (U of Florence), A. V. Penacchioni, P. S. Marrocchesi (U of Siena)\nand the CALET collaboration:\n\nThe long-duration GRB 170820A (Konus-Wind trigger time on 11:12:06.755 UT)\ntriggered the CALET Gamma-ray Burst Monitor (CGBM) at 11:12:05.10 on\n20 August 2017.  The burst signal was seen by the all CGBM instruments.\n\nThe light curve of the SGM shows a single peak.  The emission starts at\nT+1 sec, peaks at T+4.5 sec and ends at T+9 sec.  There is a hint of the\npeaked emission at T+8 sec.  The T90 duration measured by the\nSGM data is 4.1 +- 0.5 sec (40-1000 keV).\n\nThe light curve is available at\n\nhttp://cgbm.calet.jp/cgbm_trigger/flight/1187262128/\n\nThe CALET data used in this analysis are provided by the Waseda\nCALET Operation Center located at the Waseda University.\n\n[GCN OPS NOTE(25aug17): Per author's request, the URL was corrected\nfrom 1187301799 to 1187262128.]",
  "circularId": 21705,
  "createdOn": 1503705566000,
  "email": "tsakamoto@phys.aoyama.ac.jp",
  "subject": "GRB 170820A CALET Gamma-Ray Burst Monitor detection",
  "submitter": "Takanori Sakamoto at AGU  <tsakamoto@phys.aoyama.ac.jp>",
  "eventId": "GRB 170820A"
}