{
  "bibcode": "2006GCN..5820....1H",
  "body": "S. T. Holland (NASA/GSFC & USRA) reports on behalf of the UVOT team:\n\n      The UVOT data for GRB 060111B (Perri, et al. 2006, GCN\nCirc. 4487) on January 11, 2006 has been reanalysed.  We find the\nfollowing magnitudes and 3-sigma upper limits in the early UVOT\nexposures.  The start and stop times are relative to the BAT trigger\ntime, 20:15:43 UT.\n\nFilter     Start   Stop   Exposure    Mag   Err\n              (s)    (s)     (s)\n\nEarly Exposures\n    V          83    282     197      17.4   0.1\n    V         542    562      19      18.0   3-sigma upper limit\n    V         831   1031     197      19.4   3-sigma upper limit\n    B         289    489     197      20.5   3-sigma upper limit\n    B         638    658      19      18.9   3-sigma upper limit\n    U         614    633      19      18.4   3-sigma upper limit\n  UVW1        590    610      19      18.0   3-sigma upper limit\n  UVM2       6017   6217     197      20.0   3-sigma upper limit\n  UVW2        518    538      19      17.5   3-sigma upper limit\nWhite        494    514      19      19.4   3-sigma upper limit\n\nCoadded Esposures\n    V         542  52472    2435      21.0   3-sigma upper limit\n    B         638  70515    5861      22.4   3-sigma upper limit\n    U         614  69818    6008      22.0   3-sigma upper limit\n  UVW1        590  68905    4089      22.2   3-sigma upper limit\n  UVM2        566  53170    3663      22.2   3-sigma upper limit\n  UVW2        519  58952    3662      22.4   3-sigma upper limit\nWhite        494  64734    3696      22.2   3-sigma upper limit\n\n\n\nThe values quoted above are not corrected for the expected Galactic\nextinction of E_{B-V} = 0.11 mag (Schlegel et al. 1998).\n\n      These data supercede those reported in GCN Circ. 4487.  We note\nthat the B-band detection reported in GCN Circ. 4487 is not real, and\nthe initial finding chart was taken with the V filter, not the B\nfilter as previously reported.  The UVOT team apologizes for these\nerrors.",
  "circularId": 5820,
  "createdOn": 1163427238000,
  "email": "sholland@milkyway.gsfc.nasa.gov",
  "subject": "GRB 060111B: Swift UVOT Refined Magnitudes",
  "submitter": "Stephen Holland at USRA/NASA/GSFC/SSC  <sholland@milkyway.gsfc.nasa.gov>",
  "eventId": "GRB 060111B"
}