{
  "bibcode": "2006GCN..4627....1C",
  "body": "Richard J. Cool (University of Arizona) reports:\n\nBased upon feedback from users of our online releases of SDSS photometry \nand astrometry of GRB fields, we have discovered an error in several past \nreleases.  In preparing the releases, we inadvertently neglected to remove \nduplicate listings of several objects from the online catalogs.  Several \nof the secondary observations of the objects included are of lower \nphotometric quality than the primary observation and thus photometric \nzeropoints derived with them may shift slightly.  We removed all duplicate \nobservations from  the online catalogs for past \nbursts located at http://mizar.as.arizona.edu/grb/public/.\n\nWe apologize for any inconvenience.",
  "circularId": 4627,
  "createdOn": 1138810123000,
  "email": "rcool@as.arizona.edu",
  "subject": "Erratum: SDSS pre-burst observations of GRB fields",
  "submitter": "Richard J. Cool at U.of AZ/Steward Obs  <rcool@as.arizona.edu>"
}