{
  "circularId": 34854,
  "eventId": "LIGO/Virgo/KAGRA S231020ba",
  "subject": "LIGO/Virgo/KAGRA S231020ba: Coverage and upper limits from MAXI/GSC observations",
  "submitter": "Yuta Kawakubo at Louisiana State University <kawakubo1@lsu.edu>",
  "createdOn": 1697822656305,
  "submittedHow": "web",
  "bibcode": "2023GCN.34854....1K",
  "body": "Y. Kawakubo (LSU),\nH. Negoro, M. Nakajima (Nihon U.), \nT. Mihara (RIKEN), N. Kawai (RIKEN), \nS. Sugita, M. Serino, H. Hiramatsu, H. Nishikawa, Y. Kondo (AGU), \nreport on behalf of the MAXI team: \n\nWe examined MAXI/GSC all-sky X-ray images (2-20 keV) \nafter compact binary merger candidate S231020ba at 2023-10-20 14:29:47.000 UTC (GCN #34852). \n\nAt the trigger time of S231020ba, the high-voltage of MAXI/GSC was off, \nand it was turned on at T0+1153 sec (+19.2 min). \nThe first one-orbit (92 min) scan observation with GSC after the event covered 90% \nof the 90% credible region of the bayestar skymap from 14:51:52 to 16:00:18 UTC (T0+1325 to T0+5431 sec). \n\nNo significant new source was found in the region in the one-orbit scan observation. \nA typical 1-sigma averaged upper limit obtained in one scan observation \nis 20 mCrab at 2-20 keV. \n\nIf you require information about X-ray flux by MAXI/GSC at specific coordinates, \nplease contact the submitter of this circular by email. \n"
}