{
  "bibcode": "2011GCN.12654....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 111210A\n65 s after the BAT trigger (Siegel et al., GCN Circ. 12650).\nNo optical afterglow consistent with the XRT position (Goad et al., \nGCN Circ. 12652) is detected in the initial UVOT exposures.\nPreliminary 3-sigma upper limits using the UVOT photometric system\n(Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the first\nfinding chart (FC) exposure and subsequent exposures are:\n\nFilter         T_start(s)   T_stop(s)      Exp(s)         Mag\n\nwhite (FC)          65          214          147         >20.3\nu (FC)             276          526          246         >19.5\nwhite               65         6160          569         >20.5\nv                  606         6570          471         >19.3\nb                  532         7315          397         >20.0\nu                  276         7185          659         >19.9\nuvw1               657         6980          471         >20.1\nuvm2              1062         1082           19         >18.1\nuvw2               582         6365          216         >20.5\n\nThe magnitudes in the table are not corrected for the Galactic extinction\ndue to the reddening of E(B-V) = 0.03 in the direction of the burst\n(Schlegel et al. 1998).",
  "circularId": 12654,
  "createdOn": 1323554631000,
  "email": "siegel@swift.psu.edu",
  "subject": "GRB 111210A: Swift/UVOT Upper Limits",
  "submitter": "Mike Siegel at PSU/Swift MOC  <siegel@swift.psu.edu>",
  "eventId": "GRB 111210A"
}