{
  "bibcode": "2005GCN..2981....1C",
  "body": "B. E. Cobb and C. D. Bailyn (Yale), part of the larger SMARTS\nconsortium, report:\n \nUsing the ANDICAM instrument on the 1.3m telescope at CTIO, we\nobtained optical/IR imaging of the error region of GRB 050124\n(GCN 2972, Markwardt et al.) beginning ~20.2 hours post-burst\n(2005-01-25 07:42:48 UT).  Total summed exposure times amounted\nto 180s in BRIYJK and 120s in H and V.  Preliminary visual comparison\nof the optical images to the SDSS and the IR images to\n2MASS frames does not reveal any new sources brighter than our\ndetection limits (listed below).\n \nThe following approximate upper limits on detection were estimated\nby comparison with the USNO B1.0 and 2MASS catalogs:\n \n         B > 20.1\n         R > 20.6\n         I > 20.4\n         J > 18.3\n         K > 16.9",
  "circularId": 2981,
  "createdOn": 1106690773000,
  "email": "cobb@astro.yale.edu",
  "subject": "GRB 050124, SMARTS optical/IR observations",
  "submitter": "Bethany Cobb at Yale U  <cobb@astro.yale.edu>",
  "eventId": "GRB 050124"
}