{
  "bibcode": "2016GCN.18928....1H",
  "body": "Y.-D. Hu (IAA-CSIC), D. Xu (NAOC/CAS), Y. Qing (Geneva Observatory), \nY.-H. Han (NAOC/CAS, HUST) report:\n\nWe observed the field of GRB 160123A (Malesani et al., GCN 18926) using \nthe LCOGT-1m located at the Siding Spring Observatory. We obtained \n20x150s R-band images, starting at 12:04:41 UT on 2016-01-23, i.e., \n3.106 hr after the burst.\n\nNo optical source is detected at the enhanced XRT position of this GRB \n(Beardmore et al., GCN 18927), down to a limiting magnitude of R~21.0 \nmag, calibrated with nearby USNO B1 stars.",
  "circularId": 18928,
  "createdOn": 1453567087000,
  "email": "dxu@nao.cas.cn",
  "subject": "GRB 160123A: LCOGT-SSO optical upper limit",
  "submitter": "Dong Xu at NAOC/CAS  <dxu@nao.cas.cn>",
  "eventId": "GRB 160123A"
}