{
  "bibcode": "2015GCN.18267....1K",
  "body": "D. Kuroda, K. Yanagisawa, Y. Shimizu, H. Toda (OAO, NAOJ),\nS. Nagayama (NAOJ), M. Yoshida (Hiroshima), K. Ohta (Kyoto)\nand N. Kawai(Tokyo Tech)\nreport on behalf of the MITSuME and OISTER collaboration:\n\nWe observed the field of GRB 150910A (Pagani et al., GCNC 18264)\nwith the optical three color (g', Rc and Ic) CCD camera attached\nto the MITSuME 50cm telescope of Okayama Astrophysical Observatory.\n\nThe observation started on 2015-09-10 10:20:44 UT (~1.3 h after\nthe burst). We detected the previously reported afterglow (Pagani\net al., GCNC 18264; Zheng and Filippenko, GCNC 18265; Dichiara\net al., GCNC 18266) in all the three bands.\n\nPhotometric results of the OT are listed below.\nWe used SDSS-DR7 catalog for flux calibration.\n\n#T0+[day]  MID-UT    T-EXP[sec]   g'  g'_err  Rc  Rc_err  Ic  Ic_err\n-----------------------------------------------------------------------\n0.05630    10:25:52     540.0     17.6 0.2    18.4 0.2    17.0 0.1\n------------------------------------------------------------------------\nT0+ : Elapsed time after the burst [day]\nT-EXP: Total Exposure time [sec]",
  "circularId": 18267,
  "createdOn": 1441885263000,
  "email": "dikuroda@oao.nao.ac.jp",
  "subject": "GRB 150910A: MITSuME Okayama Optical Observation",
  "submitter": "Daisuke Kuroda at OAO/NAOJ  <dikuroda@oao.nao.ac.jp>",
  "eventId": "GRB 150910A"
}