{
  "bibcode": "2019GCN.25537....1S",
  "body": "Y. Shimizu (Kanagawa U), A. Yoshida, T. Sakamoto, V. Pal'shin, \nS. Sugita (AGU),  Y. Kawakubo (LSU), K. Yamaoka (Nagoya U), \nS. Nakahira (RIKEN), Y. Asaoka, S. Ozawa, S. Torii (Waseda U), \nT. Tamura (Kanagawa U), N. Cannady (GSFC/UMBC),  M. L. Cherry (LSU), \nS. Ricciarini (U of Florence), P. S. Marrocchesi (U of Siena),\nand the CALET collaboration:\n\nThe CALET Gamma-ray Burst Monitor (CGBM) was operating at the trigger \ntime of S190828l T0 = 2019-08-28 06:55:09.887 UT (The LIGO\nScientific Collaboration and Virgo Collaboration, GCN Circ. 25503).\n\nNo CGBM on-board trigger occurred around the event time.  Based\non the LIGO-Virgo localization sky map, the summed LIGO probabilities \ninside the CGBM HXM (7 - 3000 keV) and SGM (40 keV - 28 MeV) fields \nof view are 5 % and 41 %, respectively (and 79 % credible region \nof the initial localization map was above the horizon).  The HXM and \nSGM fields of view were centered at RA = 109.4 deg, Dec = 60.9 deg\nand RA = 107.0 deg, Dec = 51.0 deg at T0, respectively.\n\nBased on the analysis of the light curve data with 0.125 sec\ntime resolution from T0-60 sec to T0+60 sec, we found no\nsignificant excess (signal-to-noise ratio >= 7) around the trigger\ntime in either the HXM or the SGM data.\n\nThe CALET Calorimeter (CAL) was operating in the high energy\ntrigger mode at the trigger time of S190828l, but the CAL FOV \ndoes not have any overlap with the high probability localization region.\nThe CAL FOV was centered at RA = 106.9 deg, DEC = 51.0 deg at T0.",
  "circularId": 25537,
  "createdOn": 1567052261000,
  "email": "kawakubo1@lsu.edu",
  "subject": "LIGO/Virgo S190828l: No transient candidates in CALET observations",
  "submitter": "Yuta Kawakubo at Louisiana State U./CALET  <kawakubo1@lsu.edu>",
  "eventId": "LIGO/Virgo S190828l"
}