{
  "bibcode": "2022GCN.32185....1A",
  "body": "Y. Asaoka (ICRR), A. Yoshida, T. Sakamoto, S. Sugita (AGU), \nY. Kawakubo (LSU), K. Yamaoka (Nagoya U), S. Nakahira (RIKEN),\nS. Torii, Y. Akaike, K. Kobayashi (Waseda U),\nY. Shimizu, T. Tamura (Kanagawa U), N. Cannady (GSFC/UMBC),\nM. L. Cherry (LSU), S. Ricciarini (U of Florence),\nP. S. Marrocchesi (U of Siena),\nand the CALET collaboration:\n\nThe long GRB 220609B triggered the CALET Gamma-ray\nBurst Monitor (CGBM) at 12:21:07.969 UTC on 9 June 2022\n(http://cgbm.calet.jp/cgbm_trigger/flight/1338812272/index.html).\nThe burst signal was seen by all CGBM detectors.\n\nThe burst light curve shows a multi-peaked structure which starts\nat T-6.4 sec, peaks at T+7.9 sec, and ends at T+14.1 sec.\nThe T90 and T50 durations measured by the SGM data are 9.9 +/- 1.0 sec\nand 3.5 +/- 0.2 sec (40-1000 keV), respectively.\n\nThe ground processed light curve is available at\n\nhttp://cgbm.calet.jp/cgbm_trigger/ground/1338812272/\n\nThe CALET data used in this analysis are provided by\nthe Waseda CALET Operation Center located at the Waseda University.",
  "circularId": 32185,
  "createdOn": 1654831908000,
  "email": "kawakubo1@lsu.edu",
  "subject": "GRB 220609B: CALET Gamma-Ray Burst Monitor detection",
  "submitter": "Yuta Kawakubo at Louisiana State U./CALET  <kawakubo1@lsu.edu>",
  "eventId": "GRB 220609B"
}