{
  "bibcode": "2005GCN..2968....1L",
  "body": "W. Li, A. V. Filippenko, R. Chornock, and S. Jha (University of \nCalifornia, Berkeley) report:\n\n\"The Katzman Automatic Imaging Telescope (KAIT; see Li et al. 2003, \nPASP, 115, 844) at Lick Observatory robotically observed GRB 050123\n(HETE Trigger #3666; Hurley et al., GCN 2966). Three batches of\nunfiltered images were taken, covering a 12.6' x 12.6' field centered\non R.A. = 10h30m31s, DEC = -11d 52'17\" (J2000) (from 10:23:38 UT to\n10:54:37 UT), R.A. = 10h31m33s, DEC = -11d 34'14\" (J2000) (from\n10:58:31 UT to 11:58:53 UT), and R.A. = 10h31m26s, DEC = -11d 28'28\"\n(J2000) (from 12:11:26 UT to 12:32:26 UT), respectively. We detected no\nnew objects in our observations when compared to the DSS II images.\nThe following 3-sigma limiting magnitudes are derived (calibrated with \nUSNO-A2.0 red magnitudes) from selected images: R~17.5 mag for a\n3 x 5 s grid image (6.6' x 6.6') started at 10:23:38 UT (44 s after\nthe burst), R~19.0 for a 60 s image (6.6' x 6.6') started at 10:30:36\nUT (462 s after the burst), and R~20.0 for a 2 x 2 mosaic 120 s image\n(12.6' x 12.6') centered at 10:51:57 UT (1743 s after the burst).\"",
  "circularId": 2968,
  "createdOn": 1106541145000,
  "email": "weidong@astron.berkeley.edu",
  "subject": "GRB 050123: KAIT observations",
  "submitter": "Weidong Li at UC Berkeley KAIT/LOSS  <weidong@astron.berkeley.edu>",
  "eventId": "GRB 050123"
}