{
  "bibcode": "2023GCN.33359....1A",
  "body": "Y. Akaike  (Waseda U), A. Yoshida, T. Sakamoto, S. Sugita (AGU),\nY. Kawakubo (LSU), K. Yamaoka (Nagoya U), S. Nakahira (RIKEN),\nY. Asaoka (ICRR), S. Torii, 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 230216B (AstroSat CZTI detection: Shetty et al.,\nGCN Circ. 33341) triggered the CALET Gamma-ray Burst Monitor\n(CGBM) at 19:03:22.03 UTC on 16 February 2023\n(http://cgbm.calet.jp/cgbm_trigger/flight/1360609287/index.html).\nThe burst signal was seen by all CGBM detectors.\n\nThe burst light curve shows a multi-peaked structure that starts\nat T+1.5 sec, peaks at T+4.9 sec, and ends at T+11.1 sec.\nThe T90 and T50 durations measured by the SGM data are 8.3 +/- 1.1 sec\nand 3.1 +/- 0.4 sec (40-1000 keV), respectively.\n\nThe ground-processed light curve is available at\n\nhttp://cgbm.calet.jp/cgbm_trigger/ground/1360609287/\n\nThe CALET data used in this analysis are provided by\nthe Waseda CALET Operation Center located at Waseda University.",
  "circularId": 33359,
  "createdOn": 1676953959000,
  "email": "kawakubo1@lsu.edu",
  "subject": "GRB 230216B: CALET Gamma-Ray Burst Monitor detection",
  "submitter": "Yuta Kawakubo at Louisiana State U./CALET  <kawakubo1@lsu.edu>",
  "eventId": "GRB 230216B"
}