{
  "createdOn": 1054510530000,
  "editedBy": "Judith Racusin at NASA/GSFC <judith.racusin@nasa.gov> on behalf of Leo P. Singer at NASA/GSFC <leo.p.singer@nasa.gov>",
  "eventId": "GRB 030519B",
  "body": "J. Gorosabel (IAA-CSIC/STScI), A. Levan (U. Leicester/STScI),\n A. de Ugarte Postigo (IAA-CSIC), A.J. Castro-Tirado (IAA-CSIC),\n A. Fruchter (STScI), S. Guziy (IAA-CSIC), J.M. Castro Cerón (STScI),\n A. Guijarro (CAHA), A. Aguirre (CAHA), M. Alises (CAHA) report:\n\n \"We have carried out observations of the central part (coverage\n ~75%) of the GRB 030519B (GCN 2235) error box, in four\n optical bands, with the 2.2m (+BUSCA) telescope at the \n Observatorio de Calar Alto. Three of these four bands are non\n standard and calibration is still pending. The fourth one \n corresponds to Ic, with photometry as follows:\n\n ---------------------------------------------\n      Date                           Texp     Seeing  Lim. Mag.\n      (May 2003 UT)            (s)         (\")        (3 sigma)\n ---------------------------------------------\n     21.03872--21.06376  3x600   2.0      23.3\n     21.99519--22.07959  7x600   2.2      23.5\n     22.98905--23.07625  5x900   3.1      23.3\n     24.00387--24.03936  3x900   2.3      23.3\n ---------------------------------------------\n\n PSF matched subtraction did not reveal any reliable afterglow\n candidate brighter than Ic ~ 23, implying that this burst likely\n belongs to the dark GRB class.\"\n\n This message may be cited.",
  "circularId": 2263,
  "subject": "GRB 030519B: optical observations.",
  "email": "jgu@laeff.esa.es",
  "version": 2,
  "format": "text/plain",
  "bibcode": "2003GCN..2263....1G",
  "submitter": "Javier Gorosabel at LAEFF-INTA, Madrid  <jgu@laeff.esa.es>",
  "editedOn": 1731924267199
}