{
  "createdOn": 1756695801689,
  "body": "H. Negoro, M. Nakajima, K. Takagi (Nihon U.),\nN. Kawai, T. Mihara, (RIKEN),\nS. Sugita, M. Serino, Y. Kawakubo, H. Hiramatsu, 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 S250831cc at 2025-08-31 12:30:48.228 UTC.\n\nAt the trigger time of S250831cc, the high-voltage of MAXI/GSC was on,\nbut the FOV was out of the 90% credible region of the bayestar skymap.\nThe first one-orbit (92 min) scan observation with GSC after the event covered 48%\nof the 90% credible region of the bayestar skymap from 13:12:46 to 13:24:01 UTC\n (T0+2518 to T0+3193 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. ",
  "submitter": "Hitoshi Negoro at Nihon University/MAXI team <negoro.hitoshi@nihon-u.ac.jp>",
  "bibcode": "2025GCN.41623....1N",
  "circularId": 41623,
  "subject": "LIGO/Virgo/KAGRA S250831cc: Coverage and upper limits from MAXI/GSC observations",
  "submittedHow": "web",
  "format": "text/plain",
  "eventId": "LIGO/Virgo/KAGRA S250831cc"
}