{
  "bibcode": "2014GCN.15803....1S",
  "body": "Y. Saito, T. Yoshii, Y. Tachibana, S. Kurita, K. Ito, R. Usui,\nK. Ishikawa, T. Tanigawa, Y. Yano, Y. Yatsu, and N. Kawai (Tokyo Tech)\nreport on behalf of the MITSuME collaboration:\n\nWe observed the field of GRB 140206A (A. Y. Lien et al., GCNC 15784) with\nthe\noptical three color (g, Rc, and Ic) CCD cameras mounted on the MITSuME 50 cm\ntelescope of Akeno Observatory, Yamanashi, Japan.\n\nThe observation started on 2014-02-06 15:46:53 UT ( ~8.5 hour after the\nburst) and we detected the previously reported afterglow.\nThe measured magnitudes were listed as follows.\n\nT0+[hour]     MID-UT      T-EXP[sec]          g'\nRc               Ic\n------------------------------------------------------------\n-----------------------------------------\n  ~8.5       17:36:31      199x60        20.74+/-0.14      18.88+/-0.08\n18.37+/-0.10\n------------------------------------------------------------\n-----------------------------------------\n(The photon flux were calibrated by SDSS(g') and GSC2.3(Rc, Ic) catalog.)",
  "circularId": 15803,
  "createdOn": 1391747585000,
  "email": "yatsu@hp.phys.titech.ac.jp",
  "subject": "GRB 140206A: MITSuME Akeno detection of the optical counterpart",
  "submitter": "Yoichi Yatsu at Tokyo Tech.  <yatsu@hp.phys.titech.ac.jp>",
  "eventId": "GRB 140206A"
}