{
  "bibcode": "2012GCN.13672....1B",
  "body": "E. Berger, W. Fong (Harvard), and R. Williams (Carnegie) report:\n\n\"We observed the IPN error region of the short GRB 120817B (GCN #13670)\nwith the Wide-Field CCD camera mounted on the du Pont 2.5-m telescope at\nLas Campanas Observatory.  The observations started on 2012 August 18.158\nUT (23.7 hour after the burst) using the R-band filter, and covered the\nentire error region using two pointings with an exposure time of 900 sec\nper pointing.  A comparison to the Digital Sky Survey reveals no new\nsources to the limit of the survey (R~21 mag).\"",
  "circularId": 13672,
  "createdOn": 1345267845000,
  "email": "eberger@cfa.harvard.edu",
  "subject": "GRB 120817B: LCO Optical Observations",
  "submitter": "Edo Berger at Harvard  <eberger@cfa.harvard.edu>",
  "eventId": "GRB 120817B"
}