{
  "bibcode": "2019GCN.25226....1Y",
  "body": "Y. Yatsu, N. Kawai, K. L. Murata, R. Adachi, K. Iida, M. Oeda, K.\nShiraishi, M. Niwano, F. Ogawa, S. Toma and R. Hosokawa (Tokyo Tech), R.\nItoh (Bisei Astronomical Observatory) report on behalf of the MITSuME\ncollaboration:\n\nWe observed the ZTF optical transient ZTF19abjethn (AT2019lvs) listed in\nKasliwal et al. (GCN 25199) using the optical three color (g���, Rc, and Ic)\nCCD cameras attached to the MITSuME 50 cm telescope of Okayama\nAstrophysical Observatory, and using the CCD camera with V, R, and I band\nfilters attached to the 101cm telescope of Bisei Astronomical Observatory.\n\nThe observation of the MITSuME and the Bisei telescopes started on\n2019-07-28 13:29:47 UT and 2019-07-28 15:27:39 UT, respectively. The\nmeasured magnitudes are listed as follows.\n\n| telescope | MID-UT  | T-EXP [sec] | magnitudes |\n-----------------------------------------------------------------------------------------------\n| MITSuME Okayama 50cm | 15:09:47  | 10260 | g��� = 17.40 +/- 0.07 Rc = 17.70\n+/- 0.06  Ic = 17.53 +/- 0.06 |\n| Bisei 101 cm | 15:55:09 | 600 | V = 17.23 +/- 0.02 |\n| Bisei 101 cm | 15:37:27 | 1200 | R = 17.41 +/- 0.02 |\n| Bisei 101 cm | 16:08:21 | 600 | I = 17.40 +/- 0.04 |\n---------------------------------------------------------------------------------------------------\nT-EXP: Total Exposure time\nWe used PS1 catalog for flux calibration.\nThe magnitudes are expressed in the AB system.\nThe color terms are not used in the above magnitudes.\n\nThere are non-negligible differences in the magnitudes between MITSuME and\nBisei, which might be explained by their color-terms.\n\nThis observation was carried out by the Global Relay of Observatories\nWatching Transients Happen (GROWTH) collaboration.",
  "circularId": 25226,
  "createdOn": 1564539390000,
  "email": "murata@u.phys.nagoya-u.ac.jp",
  "subject": "LIGO/Virgo S190728q: MITSuME Okayama and Bisei Follow-Up of ZTF19abjethn (AT2019lvs)",
  "submitter": "Katsuhiro L. Murata at Nagoya U  <murata@u.phys.nagoya-u.ac.jp>",
  "eventId": "LIGO/Virgo S190728q"
}