{
  "bibcode": "2017GCN.20749....1R",
  "body": "S. Ricciarini (U of Florence), A. Yoshida, T. Sakamoto, Y. Kawakubo,\nM. Moriyama, Y. Yamada (AGU), K. Yamaoka (Nagoya U),\nS. Nakahira (JAXA), I. Takahashi (IPMU), Y. Asaoka, S. Ozawa,\nS. Torii (Waseda U), Y. Shimizu, T. Tamura (Kanagawa U), W. Ishizaki (ICRR),\nM. L. Cherry (LSU), P. S. Marrocchesi (U of Siena)\nand the CALET collaboration:\n\nThe short-duration GRB 170222A (Hamburg et al., GCN Circ. 20728;\nKozlova et al., GCN Circ. 20731; INTEGRAL-SPI/ACS trigger #7705)\ntriggered the CALET Gamma-ray Burst Monitor (CGBM) at 05:00:58.48\non 22 February 2017.  The burst signal was only seen by the SGM\ninstruments.\n\nThe light curve of the SGM shows several peaks.  The entire burst\nepisode starts at T0+0.5 sec, peaks at T0+0.8 sec and ends at T0+2 sec.\nThe T90 duration measured by the SGM data is 1.2 +- 0.1 sec (40-1000 keV).\n\nThe light curve is available at\n\nhttp://cgbm.calet.jp/cgbm_trigger/flight/1171774567/\n\nThe CALET data used in this analysis are provided by the Waseda\nCALET Operation Center located at the Waseda University.",
  "circularId": 20749,
  "createdOn": 1488103612000,
  "email": "tsakamoto@phys.aoyama.ac.jp",
  "subject": "GRB 170222A: CALET Gamma-Ray Burst Monitor detection",
  "submitter": "Takanori Sakamoto at AGU  <tsakamoto@phys.aoyama.ac.jp>",
  "eventId": "GRB 170222A"
}