{
  "bibcode": "2021GCN.29913....1Y",
  "body": "A. Yoshida, T. Sakamoto, V. Pal'shin, S. Sugita (AGU),\nY. Kawakubo (LSU), K. Yamaoka (Nagoya U), S. Nakahira (RIKEN),\nY. Asaoka (ICRR), S. 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 short GRB 210424B (IPN triangulation: Hurley, GCN Circ. 29909;\nKonus-Wind detection: Svinkin et al., GCN Circ. 29911) triggered the CALET\nGamma-ray Burst Monitor (CGBM) at 08:01:55.115 UTC on 24 April 2021\n(http://cgbm.calet.jp/cgbm_trigger/flight/1303286436/). The burst signal\nwas seen mainly by the SGM detector.\nThe burst light curve shows a multi-peaked structure which starts\nat T+0.40 sec, peaks at 1.28 sec and ends at T+1.42 sec.\nThe T90 and T50 durations measured by the SGM data are 1.04 +- 0.16 sec\nand 0.56 +- 0.15 sec (40-1000 keV), respectively.\n\nThe ground processed light curve is available at\n\nhttp://cgbm.calet.jp/cgbm_trigger/ground/1303286436/\n\nThe CALET data used in this analysis are provided by\nthe Waseda CALET Operation Center located at the Waseda University.",
  "circularId": 29913,
  "createdOn": 1619785929000,
  "email": "val@phys.aoyama.ac.jp",
  "subject": "GRB 210424B: CALET Gamma-Ray Burst Monitor detection",
  "submitter": "Valentin Pal'shin at AGU  <val@phys.aoyama.ac.jp>",
  "eventId": "GRB 210424B"
}