{
  "bibcode": "2004GCN..2618....1C",
  "body": "S. B. Cenko, D. B. Fox, and A. Gal-Yam (Caltech), with J. Dann, Y. Lipkin,\nE. Medezinski, and E. Ofek (Wise Observatory, TAU), on behalf of\na larger collaboration, report:\n\n\"We have observed the error circle of the Integral GRB040624 (GCN 2613)\nwith the Wise 40-inch telescope on June 24.77 mean UT (10.0 hours after\nthe burst). Observations consisted of 4 x 210 second unfiltered images, and\nthese images were co-added to reach a limiting magnitude of ~ 20.0.\n\nIn addition, the field was observed by the newly automated Palomar 60\"\ntelescope, from June 25.09 - June 25.29 UT (21.1 - 22.5 hours after the\nburst).  Observations consisted of 28 x 180 second R-band images, co-added\nto reach a limiting magnitude of ~ 21.5.  Both epochs were observed with ~\n2.5\" seeing, and the Palomar observations were contaminated with\nbackground light from the nearby moon.\n\nNeither epoch shows any new sources when compared with Sloan Digital\nSky Survey r-band images extracted from the SDSS DR2.  In addition,\ndigital subtraction of the two epochs yields no\nvariable objects down to the limiting magnitude of the first epoch.\n\nFITS images may be found at http://www.srl.caltech.edu/~cenko/grb040624.\"",
  "circularId": 2618,
  "createdOn": 1088793843000,
  "email": "cenko@srl.caltech.edu",
  "subject": "Optical Observations of GRB040624",
  "submitter": "S. Bradley Cenko at Caltech  <cenko@srl.caltech.edu>",
  "eventId": "GRB 040624"
}