{
  "bibcode": "2011GCN.12772....1U",
  "body": "T. N. Ukwatta (MSU), E. Sonbas (GSFC/Adiyaman Univ.),\nT. Sakamoto (GSFC/UMBC), N. Gehrels (GSFC), J. Linnemann (MSU),\nK. Tollefson (MSU), and U. Abeysekara (MSU)\n\nWe observed the field of Swift GRB 111225A\n(Siegel et al., GCN 12720) with the Lightbuckets 0.43m\nrental telescope LB-0002 in South Alpen, France. Ten 60 s\nobservations were carried out in the R filter starting\n2011-12-25 at 17:01:47 UT (~ 47 ks after the GRB trigger).\n\nWe do not detect the optical afterglow both in the individual\nimages and in the stacked image inside the XRT location. Our\nupper-limit based on the stacked observation (using the\nUSNO-B1 catalog) is given below.\n\nTime after trigger       Exposure (s)   Filter     Magnitude\n  13.2 hours             10 x 60          R         > 19.7",
  "circularId": 12772,
  "createdOn": 1325189546000,
  "email": "tilan.ukwatta@gmail.com",
  "subject": "GRB 111225A: Lightbuckets Optical Observations",
  "submitter": "Tilan Ukwatta at MSU  <tilan.ukwatta@gmail.com>",
  "eventId": "GRB 111225A"
}