{
  "bibcode": "2010GCN.11050....1C",
  "body": "S. B. Cenko (UC Berkeley) reports on behalf of a larger collaboration:\n\nWe have imaged the field of GRB 100805A (Swift trigger #430957) with the\nrobotic Palomar 60 inch telescope.  Images were obtained in the Sloan r',\ni', and z' filters beginning at 04:15 UT on 5 August (~ 3 minutes after\nthe Swift trigger time).\n\nAt the edge of the XRT error circle we detect a bright point source not\npresent in the Digital Sky Survey imaging of the field at coordinates\n(J2000.0):\n\n\tRA: 19:59:30.53   Dec: +52:37:40.0\n\nCalibrating with respect to the USNO-B1 catalog, we measure a preliminary\nmagnitude or R = 17.3.\n\nObservations to confirm the transient nature of this source are ongoing.",
  "circularId": 11050,
  "createdOn": 1280984340000,
  "email": "cenko@srl.caltech.edu",
  "subject": "GRB 100805A: P60 Optical Afterglow Candidate",
  "submitter": "S. Bradley Cenko at Caltech  <cenko@srl.caltech.edu>",
  "eventId": "GRB 100805A"
}