{
  "body": "N. Kawai (RIKEN), H. Negoro, M. Nakajima (Nihon U.),\nT. Mihara (RIKEN),\nS. Sugita, M. Serino, H. Hiramatsu, H. Nishikawa (AGU),\nY. Kawakubo (LSU)\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 S230627c at 2023-06-27 01:53:37.819 UTC (GCN 34086).\n\nAt the trigger time of S230627c, the high-voltage of MAXI/GSC was on.\nThe instantaneous field of view of GSC at the GW trigger time covered 5% of the 90% credible region\nof the bayestar sky map, in which we found no significant new X-ray source.\nThe first one-orbit (92 min) scan observation with GSC after the event covered 64%\nof the 90% credible region of the bayestar skymap from 01:53:37 to 03:25:36 UTC (T0+0 to T0+5519 sec).\n\nNo significant new source was found in the region in the one-orbit scan observation.\nBecause the 90% credible region of this event was observed by degraded camera,\na typical 1-sigma averaged upper limit obtained in one scan observation\nis 140 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. ",
  "submitter": "Motoko Serino at Aoyama Gakuin U. <serino@phys.aoyama.ac.jp>",
  "bibcode": "2023GCN.34088....1K",
  "circularId": 34088,
  "subject": "LIGO/Virgo/KAGRA S230627c: Coverage and upper limits from MAXI/GSC observations",
  "createdOn": 1687855843992,
  "eventId": "LIGO/Virgo/KAGRA S230627c"
}