{
  "bibcode": "2004GCN..2592....1G",
  "body": "J. Gorosabel and  M. Jelinek (IAA-CSIC Granada)\nJ. Mendez (ING Group, La Palma)\nP. Ruiz-Lapuente (Univ. de Barcelona)\nJ. M. Castro Ceron (STScI, Baltimore)\nA. de Ugarte Postigo and A. J. Castro-Tirado (IAA-CSIC)\n\nreport:\n\n\"We have obtained several exposures covering the HETE/SXC\nerror box for GRB 040511 (Dullighan et al. GCN 2588) with the\nPrime Focus Camera at the 4.2 m William Herschel telescope\nat La Palma.  The images were taking at a considerable airmass\nstarting on May 11.991--12.022 UT (R-band filter, with a\nstacked exposure time of 1800-s). After a visual comparison\nwith the Digital Sky Survey (DSS-2) red plate, no variable\nobject is found down to about R = 21 in a ~ 8' x 12' field\naround the 3' SXC position.\"\n\nThis message can be cited.",
  "circularId": 2592,
  "createdOn": 1084397211000,
  "email": "jgu@dsri.dk",
  "subject": "GRB 040511: Optical observations",
  "submitter": "Javier Gorosabel at Danish Space Res Inst  <jgu@dsri.dk>",
  "eventId": "GRB 040511"
}