{
  "bibcode": "2018GCN.22653....1K",
  "body": "Y. Kawakubo, A. Yoshida, T. Sakamoto, V. Pal'shin, A. Tezuka, S. Matsukawa,\nH. Onozawa (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 180416B (Fermi-GBM trigger #545609416; Konus-Wind trigger\ntime on 22:10:10.60 UT) triggered the CALET Gamma-ray Burst Monitor (CGBM) at\n22:10:09.279 UTC on 16 April 2018. The burst signal was seen by all CGBM detectors.\n\nThe burst light curve shows a single pulse which starts at T+1.6 sec, peaks at\nT+3.1 sec and ends at ~T+14 sec, followed by a weak tail seen up to ~T+62 sec.\nThe T90 and the T50 durations measured by the SGM data are 51.6 +- 12.7 sec\nand 17.4 +- 8.4 sec (40-1000 keV), respectively.\n\nThe ground processed light curve is available at\n\nhttp://cgbm.calet.jp/cgbm_trigger/ground/1207951766/\n\nThe CALET data used in this analysis are provided by the Waseda CALET Operation\nCenter located at the Waseda University.",
  "circularId": 22653,
  "createdOn": 1524055648000,
  "email": "tsakamoto@phys.aoyama.ac.jp",
  "subject": "GRB 180416B: CALET Gamma-Ray Burst Monitor detection",
  "submitter": "Takanori Sakamoto at AGU  <tsakamoto@phys.aoyama.ac.jp>",
  "eventId": "GRB 180416B"
}