{
  "bibcode": "2019GCN.23890....1H",
  "body": "K.E. Heintz (Univ. of Iceland), D. Xu (NAOC), D.B. Malesani (DAWN/NBI \nand DARK/NBI), S. Moran (NOT), report on behalf of a larger collaboration:\n\nWe observed the field of GRB 190211A (Marshall et al., GCN 23883) using \nthe 2.56-m Nordic Optical Telescope (NOT) equipped with the ALFOSC \ncamera. We obtained 3x200 s SDSS r-band and 3x300 s SDSS z-band frames, \nstarting at 02:23:58 UT on 2019-02-12, i.e., 9.487 hr after the BAT trigger.\n\nThe previously reported optical afterglow (e.g., Xu et al., GCN 23884; \nHu et al., GCN 23886) is clearly detected in our stacked images. The \nafterglow faded to m(r)=22.7 �� 0.1 mag at 9.578 hr post-burst and m(z) = \n22.0 �� 0.2 mag at 9.815 hr post-burst, calibrated with nearby SDSS stars.",
  "circularId": 23890,
  "createdOn": 1549963390000,
  "email": "dxu@nao.cas.cn",
  "subject": "GRB 190211A: NOT optical observations",
  "submitter": "Dong Xu at NAOC/CAS  <dxu@nao.cas.cn>",
  "eventId": "GRB 190211A"
}