{
  "bibcode": "2021GCN.30506....1A",
  "body": "Y. Asaoka (ICRR),\nA. Yoshida, T. Sakamoto, V. Pal'shin, S. Sugita (AGU),\nY. Kawakubo (LSU), K. Yamaoka (Nagoya U), S. Nakahira (RIKEN),\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 210723A (Swift detection: Sbarrato et al., GCN Circ. 30485,\nKrimm and Barthelmy, GCN Circ. 30495; Fermi GBM Observation:\nLesage et al., GCN Circ. 30499;\nhttps://gcn.gsfc.nasa.gov/other/210723A.gcn3) triggered the CALET Gamma-ray\nBurst Monitor (CGBM) at 14:46:05.572 UTC on 23 July 2021\n(http://cgbm.calet.jp/cgbm_trigger/flight/1311086521/index.html).\nThe burst signal was seen only by the SGM detector.\n\nThe burst light curve shows a single-pulse structure which starts\nat T+0.9 sec, peaks at T+12.6 sec,and ends at T+22.0 sec.\nThe T90 and T50 durations measured by the SGM data are 17.2 +- 3.2 sec and\n10.6 +- 3.2 sec (40-1000 keV), respectively.\n\nThe ground processed light curve is available at\n\nhttp://cgbm.calet.jp/cgbm_trigger/ground/1311086521/\n\nThe CALET data used in this analysis are provided by\nthe Waseda CALET Operation Center located at the Waseda University.",
  "circularId": 30506,
  "createdOn": 1627207388000,
  "email": "val@phys.aoyama.ac.jp",
  "subject": "GRB 210723A: CALET Gamma-Ray Burst Monitor detection",
  "submitter": "Valentin Pal'shin at AGU  <val@phys.aoyama.ac.jp>",
  "eventId": "GRB 210723A"
}