{
  "bibcode": "2019GCN.24625....1N",
  "body": "H. Negoro (Nihon U.), N. Kawai, M. Sugizaki (Tokyo Tech), \nS. Sugita, M. Serino (AGU), \nM. Nakajima, W. Maruyama, M. Aoki, K. Kobayashi (Nihon U.), \nS. Nakahira, T. 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. Ueno, H. Tomida, M. Ishikawa, Y. Sugawara, 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) after the LVC trigger S190521g \nat 2019-05-21 03:02:29.447 UTC (GCN 24621). \n\nAt the trigger time of S190521g, the high-voltage of MAXI/GSC was off, \nand it was turned on at T0+708 sec (+11.8 min). \nThe first one-orbit (92 min) scan observation with GSC after the event covered \n100% of the 90% credible region of the bayestar skymap from 03:14:17 to 04:21:47 UTC \n(T0+708 to T0+4758 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 is \n20 mCrab at 2-20 keV. \n\n If you require information about X-ray flux by MAXI/GSC at specific coordinates, \nplease contact the submitter of this circular by email.",
  "circularId": 24625,
  "createdOn": 1558419349000,
  "email": "negoro.hitoshi@nihon-u.ac.jp",
  "subject": "IGO/Virgo S190521g: Coverage and upper limits from MAXI/GSC observations",
  "submitter": "Hitoshi Negoro at Nihon U  <negoro.hitoshi@nihon-u.ac.jp>",
  "eventId": "Virgo S190521g"
}