{
  "bibcode": "2017GCN.22230....1K",
  "body": "GRB 171209A: Lulin 1m telescope observations\n\nA.K.H. Kong (NTHU, Taiwan) reports\n\nWe observed the field of GRB 171209A (LaPorte et al. GCN 22213) with\nthe 1m telescope at the Lulin Observatory in Taiwan. The observations\nwere done with the SDSS r and i filters and the first observation were\nstarted at 2017-12-09 20:20:16 UT (5.6 hours post burst). We detect\nthe optical afterglow identified by the UVOT and LCO (Guidorzi et al.\nGCN 22214). We obtained the following magnitudes:\n\nStart time     Exposure     Filter     Magnitude (AB)\n20:20:16       300s         SDSS-r     19.47+/-0.11\n20:25:50       300s         SDSS-i     18.97+/-0.09\n\nThe magnitudes were calibrated with nearby Pan-STARRS objects.",
  "circularId": 22230,
  "createdOn": 1512928769000,
  "email": "akhkong@gmail.com",
  "subject": "GRB 171209A: Lulin 1m telescope observations",
  "submitter": "Albert Kong at NTHU  <akhkong@gmail.com>",
  "eventId": "GRB 171209A"
}