{
  "bibcode": "2017GCN.22090....1T",
  "body": "H.J. Tan (CCU), Z.P. Zhu, H.X. Feng, D. Xu (NAOC), Y.D. Hu (IAA-CSIC), \nX. Gao (Urumqi No.1 Senior High School) report:\n\nWe observed the field of GRB 171102B (Ukwatta et al., GCN 22082) using \nthe 0.36m and 0.60m telescopes located at Nanshan, Xinjiang, China. All \nimaged were taken without filter.\n\nOur photometry was summarized as follows:\n========================================\nTmid(s)+T0  Telescope  Exptime(s)       UL(R)\n\n389               36cm        40*3             >16.10\n\n645               60cm        30*3             >17.80\n\n1365             60cm        60*15           >18.55\n\n========================================\nNote: (1) Photometry is calibrated with stars (R2 magnitude) in the USNO \nB1 catalogue, although images were taken without filter.",
  "circularId": 22090,
  "createdOn": 1509724154000,
  "email": "dxu@nao.cas.cn",
  "subject": "GRB 171102B: Nanshan 0.36m and 0.60m optical upper limits",
  "submitter": "Dong Xu at NAOC/CAS  <dxu@nao.cas.cn>",
  "eventId": "GRB 171102B"
}