{
  "bibcode": "2010GCN.11472....1K",
  "body": "N.P.M. Kuin (MSSL/UCL) and J.M. Gelbord (PSU)\nreport on behalf of the Swift/UVOT team:\n\nThe Swift/UVOT began settled observations of the field of GRB 101219A\n67 s after the BAT trigger (Gelbord et al., GCN Circ. 11461).\nNo optical afterglow consistent with the XRT position\nis detected in the initial UVOT exposures.\nPreliminary 3-sigma upper limits using the UVOT photometric system\n(Poole et al. 2008, MNRAS, 383, 627) for the first finding chart (FC)\nexposure and subsequent exposures are:\n\nFilter         T_start(s)   T_stop(s)      Exp(s)         Mag\n\nwhite_FC            67          217          147         >20.8\nu_FC               279          528          246         >19.9\nwhite               67         5557          467         >21.4\nv                  608         5968          432         >19.7\nb                  534         6724          369         >20.3\nu                  279         6582          658         >20.5\nw1                 658         6377          432         >21.0\nm2                 632         6172          432         >20.2\nw2                 584         5763          432         >20.9\n\nThe values quoted above are not corrected for the Galactic extinction\ndue to the reddening of E(B-V) = 0.06 in the direction of the burst\n(Schlegel et al. 1998).",
  "circularId": 11472,
  "createdOn": 1292766554000,
  "email": "npkuin@gmail.com",
  "subject": "GRB 101219A: Swift/UVOT Upper Limits",
  "submitter": "Paul Kuin at MSSL  <npkuin@gmail.com>",
  "eventId": "GRB 101219A"
}