{
  "bibcode": "2011GCN.11625....1D",
  "body": "M. De Pasquale (MSSL-UCL) and M.H Siegel (PSU) report on\nbehalf of the Swift/UVOT team:\n\nThe Swift/UVOT began settled observations of the field of GRB 110201A 127\ns after the BAT trigger (Siegel et al., GCN Circ. 11622).  No optical\nafterglow consistent with the XRT position is detected in the initial\nUVOT exposures. Preliminary 3-sigma upper limits using the UVOT\nphotometric system (Poole et al. 2008, MNRAS, 383, 627) for the first\nfinding chart (FC) exposure and subsequent exposures are:\n\nFilter         T_start(s)   T_stop(s)  Exp(s)   Mag\n\nu_FC               127         377     246    >20.0\nu                  127        2348     627    >20.4\nv                  433        2424     253    >19.5\nb                  382        2373     272    >20.4\nw1                 482        2324     233    >19.7\nm2                 457        2449     233    >19.6\nw2                 408        2400     253    >19.1\n\nWe note that a bright star (V=7) is a few arcminutes from the\nGRB position.\n\nThe values quoted above are not corrected for the strong Galactic\nextinction due to the reddening of E(B-V) = 0.35 in the direction\nof the burst (Schlegel et al. 1998).",
  "circularId": 11625,
  "createdOn": 1296576682000,
  "email": "mdp@mssl.ucl.ac.uk",
  "subject": "Swift/UVOT observations of GRB110201A",
  "submitter": "Massimiliano de Pasquale at MSSL-UCL  <mdp@mssl.ucl.ac.uk>",
  "eventId": "GRB 110201A"
}