{
  "bibcode": "2016GCN.18825....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 MITSuME and OISTER collaboration:\n\nWe observed the field of GRB 160104A (Melandri et al., GCNC 18815)\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 2016-01-04 12:42:48 UT (~1.3 h after\nthe burst). We could not detect the previously reported afterglow\n(Guidorzi et al., GCNC 18816; Saito et al., GCNC 18817)\nin all the three bands.\n\nThree sigma upper limits of the OT are listed below.\nWe used GSC2.3 catalog for flux calibration.\n\n#T0+[day]  MID-UT    T-EXP[sec]   g'    Rc     Ic\n-----------------------------------------------------\n0.08648    13:28:43    4620.0   >20.4  >20.0  >19.4\n-----------------------------------------------------\nT0+ : Elapsed time after the burst [day]\nT-EXP: Total Exposure time [sec]",
  "circularId": 18825,
  "createdOn": 1451952477000,
  "email": "dikuroda@oao.nao.ac.jp",
  "subject": "GRB 160104A: MITSuME Okayama upper limits",
  "submitter": "Daisuke Kuroda at OAO/NAOJ  <dikuroda@oao.nao.ac.jp>",
  "eventId": "GRB 160104A"
}