{
  "bibcode": "2016GCN.19466....1X",
  "body": "D. Xu, Y.-H. Han (both NAOC/CAS), S.-G. Ma, A. Esamdin, J.-Z. Liu, L. Ma \n(all XAO) report:\n\nWe observed the field of GRB 160525B (Krimm et al., GCN 19459) using the \n1m telescope located at Nanshan, Xinjiang, China. We obtained 5x300s \nR-band frames, starting at 15:26:24 UT on 2016-05-25, i.e., 6.02 hr \nafter the burst.\n\nNo optical source is detected at the XRT position (Beardmore et al., GCN \n19463) in the stacked image, down to a limiting magnitude of m(R)>21.5, \ncalibrated with the nearby SDSS field.",
  "circularId": 19466,
  "createdOn": 1464211973000,
  "email": "dxu@nao.cas.cn",
  "subject": "GRB 160525B: Nanshan optical upper limit",
  "submitter": "Dong Xu at NAOC/CAS  <dxu@nao.cas.cn>",
  "eventId": "GRB 160525B"
}