{
  "createdOn": 1736529769379,
  "format": "text/plain",
  "bibcode": "2025GCN.38897....1S",
  "body": "T. Sakamoto, A. Yoshida, S. Sugita, Y. Kawakubo (AGU),\nK. Yamaoka (Nagoya U), S. Nakahira (JAXA), Y. Asaoka (ICRR), S. Torii,\nY. Akaike, K. Kobayashi (Waseda U), Y. Shimizu, T. Tamura (Kanagawa U),\nN. Cannady (GSFC/UMBC), M. L. Cherry (LSU), S. Ricciarini (U of Florence),\nP. S. Marrocchesi (U of Siena),\nand the CALET collaboration:\n\nThe short GRB 250107D (IPN triangulation: Kozyrev et al., GCN Circ. 38880;\nKonus-Wind detection: Frederiks et al., GCN Circ. 38881) triggered the CALET\nGamma-ray Burst Monitor (CGBM) at 05:23:36.72 UTC on 7 January 2025\n(https://cgbm.calet.jp/cgbm_trigger/flight/1420262534/index.html).\nThe burst signal was seen by only the SGM detector.  Because of a problem with the ground \nalert processing script, the GCN notice was not distributed automatically for this event.\n\nThe burst light curve shows a single pulse that starts\nat T+0.17 sec, peaks at T+0.25 sec, and ends at T+0.32 sec.\nThe T90 and T50 durations measured by the SGM data are 0.13 +/- 0.03 sec\nand 0.08 +/- 0.02 sec (40-1000 keV), respectively.\n\nThe ground-processed light curve is available at\n\nhttps://cgbm.calet.jp/cgbm_trigger/ground/1420262534/\n\nThe CALET data used in this analysis are provided by\nthe Waseda CALET Operation Center located at Waseda University.",
  "submitter": "Yuta Kawakubo at Aoyama Gakuin University <kawakubo@phys.aoyama.ac.jp>",
  "circularId": 38897,
  "submittedHow": "web",
  "eventId": "GRB 250107D",
  "subject": "GRB 250107D: CALET Gamma-Ray Burst Monitor detection"
}