{
  "bibcode": "2007GCN..6391....1C",
  "body": "B. E. Cobb (Yale), part of the larger SMARTS consortium, reports:\n\nUsing the ANDICAM instrument on the 1.3m telescope at CTIO, we\nobtained optical imaging of the error region of GRB 070508\n(GCN 6383, Grupe et al.) with a mid-exposure time of\n2007-05-08 06:25 UT (~2.1 hrs post-burst).  The total summed exposure\ntime amounted to 36 minutes in I.\n\nA source is detected at the UVOT afterglow coordinates (GRB 6383, Grupe et \nal.) with a magnitude of I=20.7+/-0.3, calibrated using USNO-B1.0 values.",
  "circularId": 6391,
  "createdOn": 1178660044000,
  "email": "cobb@astro.yale.edu",
  "subject": "GRB 070508, SMARTS optical afterglow observation",
  "submitter": "Bethany Cobb at Yale U  <cobb@astro.yale.edu>",
  "eventId": "GRB 070508"
}