{
  "bibcode": "2019GCN.25612....1S",
  "body": "M. Serino, S. Sugita (AGU), H. Negoro (Nihon U.), \nN. Kawai, M. Sugizaki (Tokyo Tech),\nM. Nakajima, W. Maruyama, M. Aoki, K. Kobayashi (Nihon U.),\nT. Mihara, T. Tamagawa, M. Matsuoka (RIKEN),\nT. Sakamoto, H. Nishida, A. Yoshida (AGU),\nY. Tsuboi, W. Iwakiri, R. Sasaki, H. Kawai, T. Sato (Chuo U.),\nM. Shidatsu (Ehime U.), M. Oeda, K. Shiraishi (Tokyo Tech),\nS. Nakahira, Y. Sugawara, S. Ueno, H. Tomida, M. Ishikawa, N. Isobe, R. Shimomukai, M. Tominaga (JAXA),\nY. Ueda, A. Tanimoto, S. Yamada, S. Ogawa, K. Setoguchi, T. Yoshitake (Kyoto U.),\nH. Tsunemi, T. Yoneyama, K. Asakura, S. Ide (Osaka U.),\nM. Yamauchi, S. Iwahori, Y. Kurihara, K. Kurogi, K. Miike (Miyazaki U.),\nT. Kawamuro (NAOJ), K. Yamaoka (Nagoya U.), Y. Kawakubo (LSU) \nreport on behalf of the MAXI team:\n\nWe examined MAXI/GSC all-sky X-ray images (2-20 keV) \nafter the LVC trigger S190901ap at 2019-09-01 23:31:01.837 UTC (GCN #25606).\n\nAt the trigger time of S190901ap, the high-voltage of MAXI/GSC was on.\nThe instantaneous field of view of GSC at the GW trigger time covered 1% of the 90% credible region \nof the bayestar sky map, in which we found no significant new X-ray source.\nThe 4-orbit (360 min) observation with GSC after the event covered 72% \nof the 90% credible region of the bayestar skymap from 23:31:01 to 05:30:56 UTC (T0+0 to T0+21595 sec).\n\nNo significant new source was found in the region in the 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.",
  "circularId": 25612,
  "createdOn": 1567409522000,
  "email": "motoko@crab.riken.jp",
  "subject": "LIGO/Virgo S190901ap: Coverage and upper limits from MAXI/GSC observations",
  "submitter": "Motoko Serino at RIKEN/MAXI  <motoko@crab.riken.jp>",
  "eventId": "LIGO/Virgo S190901ap"
}