{
  "bibcode": "2014GCN.15918....1V",
  "body": "A. Volnova (IKI), N. Tungalag (Research Centre of Astronomy and \nGeophysics MAS), S. Schmalz (AIP), V. Voropaev (KIAM), I.Molotov (KIAM), \nA. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:\n\nWe observed the field of the he field of GRB 140304A (Evans et al., GCN \n15915)  with ORI-40 telescope of Khureltogot observatory starting on \nMar., 04 (UT)13:29:36, i.e., ~7 minutes after the GRB trigger. In the \nfirst unfiltered images of 60 s exposure we clearly detected afterglow \nof GRB 140304A reported by Gorbovskoy et al. (GCN 15914),  Xu et al. \n(GCN 15916), and Volnova et al., (GCN 15917).  Preliminary photometry of \nthe fading afterglow is following:\n\ndate       UT start   t-T0      Exp.  Filter  OT\n                       (mid, days) (s)\n2014-03-04 13:29:36   0.00602   3*60  none    17.5 +/- 0.2\n\nThe photometry is based on reference stars SDSS-DR9, (R mag,\ntransformation by Lupton 2005):\n\nN  SDSS_id          R(Lupton)err\nJ020233.12+332550.3 15.665 0.012\nJ020219.91+332738.5 14.785 0.012",
  "circularId": 15918,
  "createdOn": 1393946236000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 140304A:  Khureltogot optical observations",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 140304A"
}