{
  "bibcode": "2003GCN..2365....1F",
  "body": "D.B. Fox and M.P. Hunt (Caltech) report on behalf of the Caltech-NRAO\nGRB Collaboration:  \n\n\"We have observed the HETE-2 SXC localization region for GRB030823\nwith the 200-inch Hale Telescope and Large-Format Camera on\nMt. Palomar on August 24.15 and August 25.23 UT.  Our dithered 4x300s\nimages cover the full localization region on each night at mean epochs\nof 0.78 and 1.86 days after the burst, respectively.  PSF-matched\nimage subtraction reveals no bright, variable sources within the SXC\nerror box.  We therefore derive a limit of R>22.5 on the brightness of\nany variable optical counterpart at the epoch of our first\nobservation.\"",
  "circularId": 2365,
  "createdOn": 1061817779000,
  "email": "derekfox@astro.caltech.edu",
  "subject": "GRB030823: Palomar observations",
  "submitter": "Derek Fox at CIT  <derekfox@astro.caltech.edu>",
  "eventId": "GRB 030823"
}