{
  "bibcode": "2015GCN.18660....1H",
  "body": "L. M. Z. Hagen (PSU) and J. R. Cummings (NASA/UMBC)\nreport on behalf of the Swift/UVOT team:\n\nThe Swift/UVOT began settled observations of the field of GRB 151205A\n101 s after the BAT trigger (Cummings et al., GCN Circ. 18657). No\noptical afterglow consistent with the XRT position (Osborne et al.\nGCN Circ. 18658) 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              101         5796          383         >21.15\nv                  590         6207          236         >19.25\nb                  514         5591          236         >20.14\nu                  259         6713          552         >20.21\nw1                 639         6617          413         >20.10\nm2                4776         6412          393         >20.07\nw2                 565         6002          236         >19.95\n\nThe magnitudes in the table are not corrected for the Galactic extinction\ndue to the reddening of E(B-V) = 0.02 in the direction of the burst\n(Schlegel et al. 1998).",
  "circularId": 18660,
  "createdOn": 1449356457000,
  "email": "lea.zernow.hagen@gmail.com",
  "subject": "GRB 151205A: Swift/UVOT Upper Limits",
  "submitter": "Lea Hagen at PSU  <lea.zernow.hagen@gmail.com>",
  "eventId": "GRB 151205A"
}