{
  "bibcode": "2019GCN.26191....1Z",
  "body": "Z.P. Zhu, D. Xu (NAOC), J. Viuho (NOT) report on behalf of a larger \ncollaboration:\n\nWe observed the field of GRB 191106A (Marshall et al., GCN 26177) using \nthe Nordic Optical Telescope (NOT) equipped with the ALFOSC camera. \nObservations started at 19:35:51 UT on 2019-11-06 (i.e., 3.35 hr after \nthe BAT trigger), and 16x200s Sloan z-band frames were obtained.\n\nNo optical source is detected in our stacked image at the XRT position \n(Page et al., GCN 26190), down to a limiting magnitude of z > 22.0 at a \nmean time of 4.0 hr post-burst, calibrated with the nearby SDSS field.",
  "circularId": 26191,
  "createdOn": 1573088919000,
  "email": "dxu@nao.cas.cn",
  "subject": "GRB 191106A: NOT optical upper limit",
  "submitter": "Dong Xu at NAOC/CAS  <dxu@nao.cas.cn>",
  "eventId": "GRB 191106A"
}