{
  "body": "Y. Kawakubo, A. Yoshida, T. Sakamoto, S. Sugita (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), M. L. Cherry (LSU), S. Ricciarini (U of Florence),\nP. S. Marrocchesi (U of Siena),\nand the CALET collaboration:\n\nThe CALET Gamma-ray Burst Monitor (CGBM) detected the short GRB 260527A\n(Konus-Wind detection: Svinkin et al., GCN #44722; GECAM-B detection: \nYu et al., GCN #44724) at 06:16:09.76 UTC on 27 May 2026\n(https://cgbm.calet.jp/cgbm_trigger/flight/1463897683/index.html).\n\nThe burst signal was seen by all CGBM detectors.  \n\nThe burst light curve shows a multi-peaked structure starting\nat T+0.16 s, peaking at T+0.28 s, and ending at T+0.38 s.\nThe T90 and T50 durations measured with the SGM data are 0.19 +/- 0.04 s\nand 0.06 +/- 0.02 s (40-1000 keV), respectively.\n\nEinstein Probe/WXT detected a fast X-ray transient, EP 260527a\n(Yang et al., GCN #44718), about 4 minutes after the CGBM trigger,\nand Einstein Probe/FXT follow-up observations were also reported by Yang et al.\n(GCN Circ. 44725).  The position of EP 260527a was observable by CGBM \nat the CGBM trigger time, with an incident angle of approximately 40 degrees.\n\nThe ground-processed light curve is available at\nhttps://cgbm.calet.jp/cgbm_trigger/ground/1463897683/\n\nThe CALET data used in this analysis were provided by\nthe Waseda CALET Operation Center located at Waseda University.\n",
  "editedBy": "Vidushi Sharma at NASA GSFC/UMBC <vidushi.sharma@nasa.gov>",
  "createdOn": 1779988936550,
  "eventId": "GRB 260527A",
  "submitter": "Yuta Kawakubo at Aoyama Gakuin University <kawakubo@phys.aoyama.ac.jp>",
  "version": 2,
  "subject": "GRB 260527A: CALET Gamma-Ray Burst Monitor detection",
  "editedOn": 1780280149587,
  "submittedHow": "web",
  "format": "text/plain",
  "bibcode": "2026GCN.44726....1K",
  "circularId": 44726
}