{
  "bibcode": "2014GCN.17252....1X",
  "body": "D. Xu (DARK, NAOC), H.-B. Niu, A. Esamdin, L. Ma (XAO) report:\n\nWe observed the field of MAXI-detected GRB 141229A (Fujita et al., GCN\n17246), using the 1m optical telescope located at Nanshan, Xinjiang,\nChina, which has a field of view of 1.3x1.3 deg^2. Two epochs of 300s\nR-band images were obtained at 15:26:23 UT and 18:36:14 UT on\n2014-12-29, respectively. No optical source was detected at the XRT\nposition reported in Bernardini et al. (GCN 17251), down to a limiting\nmagnitude of R=20.5.",
  "circularId": 17252,
  "createdOn": 1419905545000,
  "email": "dong.dark@gmail.com",
  "subject": "GRB 141229A: Nanshan optical upper limit",
  "submitter": "Dong Xu at DARK/NBI  <dong.dark@gmail.com>",
  "eventId": "GRB 141229A"
}