{
  "bibcode": "2019GCN.25615....1T",
  "body": "T. Tamura (Kanagawa U),\nA. Yoshida, T. Sakamoto, V. Pal'shin, S. Sugita (AGU),\nY. Kawakubo (LSU), K. Yamaoka (Nagoya U), S. Nakahira (RIKEN),\nY. Asaoka, S. Ozawa, S. Torii (Waseda U), Y. Shimizu (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\nAt 06:30:28.620 UTC on 31 August 2019, the CALET Gamma-ray Burst Monitor\n(CGBM) triggered on short GRB 190831B. The burst signal was mainly seen by\nthe SGM detector.\nNo real-time CGBM GCN notice was distributed about this trigger\nbecause the real-time communication from the ISS was off (loss of signal).\n\nThis short burst also triggered INTEGRAL SPI-ACS (trigger #8366).\n\nThe burst light curve shows a single pulse which starts at T-0.6 sec,\npeaks at T-0.4 sec and ends at T+0.2 sec. The T90 and T50 durations\nmeasured by the SGM data are 0.7 +- 0.2 sec and 0.4 +- 0.2 sec\n(40-1000 keV), respectively.\n\nThe ground processed light curve is available at\n\nhttp://cgbm.calet.jp/cgbm_trigger/ground/1251268076/\n\nThe CALET data used in this analysis are provided by\nthe Waseda CALET Operation Center located at the Waseda University.",
  "circularId": 25615,
  "createdOn": 1567434523000,
  "email": "val@phys.aoyama.ac.jp",
  "subject": "GRB 190831B: CALET Gamma-Ray Burst Monitor detection of a short burst",
  "submitter": "Valentin Pal'shin at AGU  <val@phys.aoyama.ac.jp>",
  "eventId": "GRB 190831B"
}