{
  "bibcode": "2011GCN.12735....1S",
  "body": "M. H. Siegel (PSU) reports on behalf of the Swift/UVOT team:\n\nThe Swift/UVOT began settled observations of the field of GRB 111225A\n95 s after the BAT trigger (Siegel et al., GCN Circ. 12720).\nA source consistent with the XRT position is detected in the initial UVOT exposures.\n\nThe preliminary UVOT position is:\n   RA  (J2000) =  00:52:37.22 =  13.15510 (deg.)\n   Dec (J2000) = +51:34:19.5  =  51.57208 (deg.)\nwith an estimated uncertainty of 0.67 arc sec. (radius, 90% confidence).\n\nThe afterglow has not been detected since the first orbit.  Preliminary detections and\n3-sigma upper limits using the UVOT photometric system\n(Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the early exposures are: \n\nFilter         T_start(s)   T_stop(s)      Exp(s)           Mag\n\nu (fc)              95          345          246         19.46 +/- 0.17\nv                  610        18443         2140        >21.1\nu                 4385        16744         1475        >20.66 \nuvw1               659        12668         1212        >20.4\nuvm2               634        11879         1337        >20.5\nuvw2               354        17652         1780         21.36 +/- 0.31\n\nThe magnitudes in the table are not corrected for the Galactic extinction\ndue to the reddening of E(B-V) = 0.26 in the direction of the burst\n(Schlegel et al. 1998).",
  "circularId": 12735,
  "createdOn": 1325004696000,
  "email": "siegel@swift.psu.edu",
  "subject": "GRB 111225A: Swift/UVOT Observations",
  "submitter": "Mike Siegel at PSU/Swift MOC  <siegel@swift.psu.edu>",
  "eventId": "GRB 111225A"
}