{
  "eventId": "GRB 251016B",
  "body": "K. Yamaoka (Nagoya U), A. Yoshida, T. Sakamoto, S. Sugita,  Y. Kawakubo (AGU),\nS. Nakahira (JAXA), Y. Asaoka (ICRR), S. Torii, Y. Akaike, K. Kobayashi (Waseda U),\nY. Shimizu, T. Tamura (Kanagawa U), N. Cannady (GSFC/UMBC), M. L. Cherry (LSU),\nS. Ricciarini (U of Florence), P. S. Marrocchesi (U of Siena),\nand the CALET collaboration:\n\nThe long GRB 251016B (Fermi GBM Final Real-time Localization: Fermi GBM team,\nGCN Circ. 42316) triggered the CALET Gamma-ray Burst Monitor (CGBM) at \n23:58:57.45 UTC on 16 October 2025\n(https://cgbm.calet.jp/cgbm_trigger/flight/1444693868/index.html).\nThe burst signal was seen by all CGBM detectors.\n\nThe burst light curve shows a single pulse that starts\nat T+3.1 sec, peaks at T+5.6 sec, and ends at T+12.6 sec.\nThe T90 and T50 durations measured by the SGM data are 5.9 +/- 0.5 sec\nand 2.0 +/- 0.1 sec (40-1000 keV), respectively.\n\nThe ground-processed light curve is available at\n\nhttps://cgbm.calet.jp/cgbm_trigger/ground/1444693868/\n\nThe CALET data used in this analysis are provided by\nthe Waseda CALET Operation Center located at Waseda University.\n",
  "subject": "GRB 251016B: CALET Gamma-Ray Burst Monitor detection",
  "bibcode": "2025GCN.42320....1Y",
  "submittedHow": "web",
  "circularId": 42320,
  "submitter": "Yuta Kawakubo at Aoyama Gakuin University <kawakubo@phys.aoyama.ac.jp>",
  "createdOn": 1760684492858,
  "format": "text/plain"
}