{
  "bibcode": "2016GCN.19865....1M",
  "body": "P. S. Marrocchesi (U of Siena), A. Yoshida, T. Sakamoto, Y. Kawakubo,\nM. Moriyama, Y. Yamada (AGU), K. Yamaoka (Nagoya U), S. Nakahira (JAXA),\nI. Takahashi (IPMU), Y. Asaoka, S. Ozawa, S. Torii (Waseda U),\nY. Shimizu, T. Tamura (Kanagawa U), W. Ishizaki (ICRR),\nM. L. Cherry (LSU), S. Ricciarini (U of Florence),\nand the CALET collaboration:\n\nThe long-duration GRB 160821A (Siegel et al., GCN Circ. 19830;\nMcEnery et al., GCN Circ. 19831; Stanbro et al., GCN Circ. 19835;\nINTEGRAL-SPI/ACS trigger #7537) triggered the CALET Gamma-ray Burst Monitor\n(CGBM) at 20:36:21.91 on 21 August 2016.  The burst signal was seen by\nall CGBM instruments.  Note that the CGBM trigger time is 111 sec after\nthe trigger time of Swift/BAT.  This is because the CGBM triggered at the\nbright main peak of the burst (Markwardt et al. GCN Circ. 19840).\n\nThe light curve of the SGM shows a bright peak with several overlapping\npulses.  The emission starts from T sec, peaks at T+24 sec and ends at\nT+80 sec.  There is a hint of the emission in the SGM light curve around\nthe trigger time of Swift/BAT.  The T90 duration measured by the SGM data\nis 35.1 +- 0.8 sec (40-1000 keV).\n\nThe light curve is available at\n\nhttp://cgbm.calet.jp/cgbm_trigger/flight/1155846835/\n\nThe CALET data used in this analysis are provided by the Waseda\nCALET Operation Center located at the Waseda University.",
  "circularId": 19865,
  "createdOn": 1472176766000,
  "email": "tsakamoto@phys.aoyama.ac.jp",
  "subject": "GRB 160821A: CALET Gamma-Ray Burst Monitor detection",
  "submitter": "Takanori Sakamoto at AGU  <tsakamoto@phys.aoyama.ac.jp>",
  "eventId": "GRB 160821A"
}