{
  "bibcode": "2023GCN.33563....1C",
  "body": "M. L. Cherry (LSU), A. Yoshida, T. Sakamoto, S. Sugita (AGU),\nY. Kawakubo (LSU), K. Yamaoka (Nagoya U), S. Nakahira (RIKEN),\nY. Asaoka (ICRR), S. Torii, Y. Akaike, K. Kobayashi (Waseda U),\nY. Shimizu, T. Tamura (Kanagawa U), N. Cannady (GSFC/UMBC),\nS. Ricciarini (U of Florence),\nP. S. Marrocchesi (U of Siena),\nand the CALET collaboration:\n\nThe long GRB 230402A (Fermi GBM Final Real-time Localization: \nFermi GBM team, GCN Circ. 33553; AGILE detection: Casentini et al.,\nGCN Circ 33555; AstroSat CZTI detection: Navaneeth et al., GCN Circ. \n33562) triggered the CALET Gamma-ray Burst Monitor (CGBM)at \n07:32:38.72 UTC on 2 April 2023\n(http://cgbm.calet.jp/cgbm_trigger/flight/1364455761/).\nThe burst signal was seen by only the SGM detector.\n\nThe burst light curve shows a single pulse that starts\nat T-3.2 sec and ends at T+4.8 sec.\nThe T90 and T50 durations measured by the SGM data are 7.0 +/- 1.0 sec\nand 4.0 +/- 1.0 sec (40-1000 keV), respectively.\n\nThe ground-processed light curve is available at\n\nhttp://cgbm.calet.jp/cgbm_trigger/ground/1364455761/\n\nThe CALET data used in this analysis are provided by\nthe Waseda CALET Operation Center located at Waseda University.",
  "circularId": 33563,
  "createdOn": 1680622198000,
  "email": "kawakubo1@lsu.edu",
  "subject": "GRB 230402A: CALET Gamma-Ray Burst Monitor detection",
  "submitter": "Yuta Kawakubo at Louisiana State U./CALET  <kawakubo1@lsu.edu>",
  "eventId": "GRB 230402A"
}