{
  "bibcode": "2023GCN.33452....1S",
  "body": "Y. Shimizu (Kanagawa U), 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),\nT. 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 short GRB 230308A (Fermi GBM Final Real-time Localization: \nFermi GBM team, GCN Circ. 33420; BALROG localization: Kunzweiler et al.,\nGCN Circ 33421; AGILE/MCAL detection: Casentini et al., GCN Circ 33435;\nFermi GBM detection: Malacaria et al., GCN Circ 33440) triggered the \nCALET Gamma-ray Burst Monitor (CGBM) at 13:32:27.34 UTC on 8 March 2023\n(http://cgbm.calet.jp/cgbm_trigger/flight/1362317395/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+0.04 sec, peaks at T+0.21 sec, and ends at T+0.37 sec.\nThe T90 and T50 durations measured by the SGM data are 0.29 +/- 0.04 sec\nand 0.17 +/- 0.04 sec (40-1000 keV), respectively.\n\nThe ground-processed light curve is available at\n\nhttp://cgbm.calet.jp/cgbm_trigger/ground/1362317395/\n\nThe CALET data used in this analysis are provided by\nthe Waseda CALET Operation Center located at Waseda University.",
  "circularId": 33452,
  "createdOn": 1678530549000,
  "email": "kawakubo1@lsu.edu",
  "subject": "GRB 230308A: CALET Gamma-Ray Burst Monitor detection",
  "submitter": "Yuta Kawakubo at Louisiana State U./CALET  <kawakubo1@lsu.edu>",
  "eventId": "GRB 230308A"
}