{
  "bibcode": "2017GCN.20900....1S",
  "body": "S. Sugita, N. Kawai (Tokyo Tech), M. Serino (RIKEN), H. Negoro (Nihon U.),\nS. Ueno, H. Tomida, S. Nakahira, M. Ishikawa, Y. Sugawara (JAXA),\nY. E. Nakagawa (JAMSTEC),\nT. Mihara, M. Sugizaki, W. Iwakiri, M. Shidatsu, J. Sugimoto, T.\nTakagi, M. Matsuoka (RIKEN),\nN. Isobe, T. Yoshii, Y. Tachibana, Y. Ono, T. Fujiwara, S. Harita, Y.\nMuraki (Tokyo Tech),\nA. Yoshida, T. Sakamoto, Y. Kawakubo, Y. Kitaoka (AGU),\nH. Tsunemi, R. Shomura (Osaka U.),\nM. Nakajima, K. Tanaka, T. Masumitsu, T. Kawase (Nihon U.),\nY. Ueda, T. Kawamuro, T. Hori, A. Tanimoto, S. Oda (Kyoto U.),\nY. Tsuboi, Y. Nakamura, R. Sasaki (Chuo U.),\nM. Yamauchi, K. Furuya (Miyazaki U.),\nK. Yamaoka (Nagoya U.)\nreport on behalf of the MAXI team:\n\nWe examined the MAXI/GSC all-sky X-ray images (2-20 keV) obtained\nin the orbit and the day after the LVC trigger\nG277583 at 2017-03-13 22:40:09.593 UTC (GCN 20860).\n\nAt the trigger time of G277583,\nthe high-voltage of MAXI/GSC was off,\nand on from T0+682 sec.\nGSC scanned more than 74%\nof the whole sky in the 92-min orbit, which includes 78.3% of the\n90% regions in the skyprobcc_cWB skymap.\nOne day image covers 97.5% of the 90% regions\nin the skyprobcc_cWB skymap.\nNo significant new source was found in these images.\nThe upper limits for the X-ray flux are different depending\non the part of the sky.\nFor instance, typical 2-20 keV 1-sigma (3-sigma) upper limits obtained\nfrom the one-orbit and one-day images are\n13(39) mCrab and  3(9) mCrab, respectively,\n\nIf you require information of X-ray flux by MAXI/GSC at specific coordinates,\nplease contact the submitter of this circular by email.",
  "circularId": 20900,
  "createdOn": 1489807027000,
  "email": "sugita@hp.phys.titech.ac.jp",
  "subject": "LIGO/Virgo G277583 : MAXI/GSC observations",
  "submitter": "Satoshi Sugita at Tokyo Inst. of Tech.  <sugita@hp.phys.titech.ac.jp>",
  "eventId": "LIGO/Virgo G277583"
}