{
  "createdOn": 1686370191596,
  "submitter": "Yuta Kawakubo at Louisiana State University <kawakubo1@lsu.edu>",
  "circularId": 33948,
  "bibcode": "2023GCN.33948....1Y",
  "subject": "GRB 230608A: CALET Gamma-Ray Burst Monitor detection",
  "eventId": "GRB 230608A",
  "body": "K. Yamaoka (Nagoya U), A. Yoshida, T. Sakamoto, \nS. Sugita (AGU), Y. Kawakubo (LSU), \nS. Nakahira (JAXA), Y. Asaoka (ICRR),\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 230608A (INTEGRAL SPI ACS Trigger #10282;\nAGILE detection: Longo et al., GCN Circ 33946; AstroSat CZTI\ndetection: Navaneeth et al., GCN Circ 33947) triggered the \nCALET Gamma-ray Burst Monitor (CGBM)  at 18:34:33.392 UTC \non 8 June 2023\n(http://cgbm.calet.jp/cgbm_trigger/flight/1370284460/index.html).\nThe burst signal was seen by only the SGM detector.\n\nThe burst light curve shows a single pulse that starts\nat T+2.5 sec, peaks at T+3.3 sec, and ends at T+7.0 sec.\nThe T90 and T50 durations measured by the SGM data are \n3.9 +/- 0.4 sec and 1.6 +/- 0.4 sec (40-1000 keV), respectively.\n\nThe ground-processed light curve is available at\n\nhttp://cgbm.calet.jp/cgbm_trigger/ground/1370284460/\n\nThe CALET data used in this analysis are provided by\nthe Waseda CALET Operation Center located at Waseda University.\n"
}