{
  "bibcode": "2005GCN..3807....1C",
  "body": "S. Bradley Cenko (Caltech) reports on behalf of a larger collaboration:\n\nWe have imaged the field of GRB050814 (Swift 150314, Retter et al., GCN\n3799) with the automated Palomar 60-inch telescope.  Observations\nconsisted of 18 x 120 s images in both the Kron R and Gunn i filters,\nand were taken at a mean epoch of 15 August 04:43 UT (~ 17.1 hours after\nthe burst).\n\nIn the revised XRT error circle (Morris et al, GCN 3805), we find a\nfaint source marginally detected (~2 sigma) in our i-band coadd.  This\nsource is not present in any of the Second Generation Digital Sky Survey\nplates, although it is likely below the detection threshold.  The\ncoordinates (J2000) of the source are\n\n        RA: 17:36:45.39\n        Dec: +46:20:21.6\n\nwith an estimated uncertainty of ~0.2\" in each direction.\n\nBy comparison with the USNO-B1 star located at 17:36:50.9, +42:20:45.0\n(USNO 1363-0276928, I = 15.73), we estimate the magnitude of this source\nis i ~ 21.4 +/- 0.3.  Given its faintness, we cannot determine whether\nthe source is variable, and therefore cannot confirm whether it is the\nafterglow of GRB050814.\n\nWe find no sources present in the XRT error circle in our R-band coadd\nto a (3-sigma) limiting magnitude of R > 21.3.\n\nFurther observations and analysis are planned.",
  "circularId": 3807,
  "createdOn": 1124088426000,
  "email": "cenko@srl.caltech.edu",
  "subject": "GRB050814: P60 Optical Afterglow Candidate",
  "submitter": "S. Bradley Cenko at Caltech  <cenko@srl.caltech.edu>",
  "eventId": "GRB 050814"
}