{
  "bibcode": "2011GCN.11668....1C",
  "body": "B. E. Cobb (GWU) reports:\n\nUsing the ANDICAM instrument on the 1.3m telescope at CTIO, we obtained \noptical/IR imaging of the error region of GRB 110206A (GCN 11654, \nMereghetti et al.) with a mid-exposure time of 6.8 hours post-burst \n(2011-02-07 00:57:41 UT).  Total summed exposure times amounted to \n36 minutes in I and 30 minutes in J.\n\nThe source which is the possible optical afterglow of GRB 110206A \n(GCN 11662, Hoversten et al. and GCN 11665, Elliott et al.) is detected \nin our optical image.  Preliminary comparison to Landolt standards stars in \nI and 2MASS stars in J indicates the following I-band magnitude and J-band \n3-sigma upper limit for this source:\n\ntime post-burst       I mag             J 3-sigma limit\n6.8 hours               20.6+/-0.1      >18.8\n\nOur data do not allow for a test of variability at this time, so we\ncannot confirm that this source is the optical afterglow of GRB 110206A.",
  "circularId": 11668,
  "createdOn": 1297121722000,
  "email": "bcobb@gwu.edu",
  "subject": "GRB 110206A: SMARTS optical/IR afterglow candidate observations",
  "submitter": "Bethany Cobb at GWU  <bcobb@gwu.edu>",
  "eventId": "GRB 110206A"
}