{
  "bibcode": "2003GCN..2032....1L",
  "body": "K. Luhman, T. Megeath, T. Spahr, K.Z. Stanek (CfA), S. Holland\n  P. Garnavich (Notre Dame)\n\nWe observed the error circle of GRB 030324 (GCN 1954) with\nthe Fred L. Whipple 1.2-m telescope and R filter on three\nepochs:\n\n Date    Time   t (days)   R_lim\nMar. 24  06:25   0.134     22.4 \nMar. 24  10:37   0.309     22.5\nMar. 26  07:52   2.194     22.7\n\nwhere R_lim is the 3-sigma limiting magnitude. Visual\ncomparison and subtraction of the the epochs reveals no new,\nstrongly variable sources down to the corresponding limits.\nA star present on the digitized sky survey at\n13:37:19.23 -00:16:21 (2000) is seen to vary between 19.2\nand 18.8 in the R-band.\n\nDeep R-band images centered on the error circle, but covering\nonly the inner 7.4' diameter field were obtained with the\nMagellan 6.5-m Clay telescope and LDSS2 imaging/spectrograph: \n\n Date    Time     t (days)    R_lim\nMar. 24  08:14     0.210      23.1 \nMar. 25  05:35     1.100      23.3\n\nand subtraction of these images does not reveal any\nnew, variable sources.\n\nThis message may be cited.",
  "circularId": 2032,
  "createdOn": 1049063448000,
  "email": "pgarnavi@miranda.phys.nd.edu",
  "subject": "GRB 030324, optical search",
  "submitter": "Peter Garnavich at U of Notre Dame  <pgarnavi@miranda.phys.nd.edu>",
  "eventId": "GRB 030324"
}