{
  "bibcode": "2019GCN.25981....1Y",
  "body": "K. Yamaoka (Nagoya U),\nA. Yoshida, T. Sakamoto, V. Pal'shin, S. Sugita (AGU),\nY. Kawakubo (LSU), S. Nakahira (RIKEN),\nY. Asaoka, S. Torii (Waseda U), Y. Shimizu, T. Tamura (Kanagawa U),\nN. Cannady (GSFC/UMBC), M. L. Cherry (LSU),\nS. Ricciarini (U of Florence), P. S. Marrocchesi (U of Siena),\nand the CALET collaboration:\n\nThe soft GRB 191004A (Swift-BAT detection: Cenko et al., GCN Circ. 25945,\nSakamoto et al., GCN Circ. 25953; Konus-Wind observation: Svinkin et al.,\nGCN Circ. 25973) triggered the CALET Gamma-ray Burst Monitor (CGBM) at\n18:07:05.528 UTC on 4 October 2019. The burst signal was seen by all CGBM\ndetectors.\nNo real-time CGBM GCN notice was distributed about this trigger because\nthe real-time communication from the ISS was off (loss of signal).\n\nThe burst light curve shows two pulses which start at T-2.7 sec and end\nat T+0.0 sec. The T90 and T50 durations measured by the SGM data are\n2.6 +- 0.3 sec and 1.9 +- 1.4 sec (40-1000 keV), respectively.\n\nThe ground processed light curve is available at\n\nhttp://cgbm.calet.jp/cgbm_trigger/ground/1254247608/\n\nThe CALET data used in this analysis are provided by\nthe Waseda CALET Operation Center located at the Waseda University.",
  "circularId": 25981,
  "createdOn": 1570537846000,
  "email": "val@phys.aoyama.ac.jp",
  "subject": "GRB 191004A: CALET Gamma-Ray Burst Monitor detection",
  "submitter": "Valentin Pal'shin at AGU  <val@phys.aoyama.ac.jp>",
  "eventId": "GRB 191004A"
}