{
  "bibcode": "2014GCN.16219....1S",
  "body": "M. H. Siegel (PSU) and B. P. Gompertz (U Leicester)\nreport on behalf of the Swift/UVOT team:\n\nThe Swift/UVOT began settled observations of the field of GRB 140506A\n108 s after the BAT trigger (Gompertz et al., GCN Circ. 16214).\nA source consistent with the XRT position\n(Osborne et al. GCN Circ. 16215)\nis detected in the initial UVOT exposures.\n\nThe preliminary UVOT position is:\n  RA  (J2000) =  18:27:06.04 = 276.77516 (deg.)\n  Dec (J2000) = -55:38:08.7  = -55.63575 (deg.)\nwith an estimated uncertainty of 0.43 arc sec. (radius, 90% confidence).\n\nPreliminary detections and 3-sigma upper limits using the UVOT photometric system\n(Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the first and second \norbits are: \n\nFilter         T_start(s)   T_stop(s)      Exp(s)       Mag\n\nwhite (fc)         108          257          147     17.19+-0.03\nwhite              108         1545          390     17.82+-0.05\nwhite             6078         6278          196     20.07+-0.14\nwhite            11748        12655          885     21.52+-0.26\nv                  650         1576           98    >18.87\nv                 5053         6688          393     19.82+-0.32\nb                  576         1520           97     19.40+-0.30\nb                 5873         7334          221    >20.57\nu (fc)             320          570          245     17.34+-0.07\nu                  320         1496          323     17.50+-0.07\nu                 5668         7303          393     20.04+-0.34\nuvw1               700         1471           77     18.60+-0.29\nuvw1              5463         7098          393    >20.29\nuvm2               675         1446           97    >18.96\nuvm2              5257         6893          393    >20.17\nuvw2               626         1570          116    >19.41\nuvw2              6284         6484          196    >19.97\n\nThe magnitudes in the table are not corrected for the Galactic extinction\ndue to the reddening of E(B-V) = 0.09 in the direction of the burst\n(Schlegel et al. 1998).",
  "circularId": 16219,
  "createdOn": 1399482049000,
  "email": "siegel@swift.psu.edu",
  "subject": "GRB 140506A: Swift/UVOT Detection",
  "submitter": "Mike Siegel at PSU/Swift MOC  <siegel@swift.psu.edu>",
  "eventId": "GRB 140506A"
}