{
  "bibcode": "2015GCN.18641....1S",
  "body": "M. H. Siegel (PSU) and P. A. Evans (U.Leicester)\nreport on behalf of the Swift/UVOT team:\n\nThe Swift/UVOT began settled observations of the field of GRB 151122A\n102884 s after the BAT trigger (Palmer et al., GCN Circ. 18637).\nNo optical afterglow consistent with either of the XRT positions\ngiven by Evans et al. (GCN Circ 18640) is detected in the initial UVOT exposures.\nFor source 1, we do not detect any new source down to the detection limit.\nFor source 2, we only detect the bright high proper motion star HD 189004.\n\nPreliminary 3-sigma upper limits using the UVOT photometric system\n(Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the initial exposures are:\n\nFilter         T_start(s)   T_stop(s)      Exp(s)         Mag\n\nw2              102884       113997         2933         >21.1\n\nThe magnitudes in the table are not corrected for the Galactic extinction\ndue to the reddening of E(B-V) = 0.20 in the direction of the burst\n(Schlegel et al. 1998).",
  "circularId": 18641,
  "createdOn": 1448388540000,
  "email": "siegel@swift.psu.edu",
  "subject": "GRB 151122A: Swift/UVOT Observations",
  "submitter": "Mike Siegel at PSU/Swift MOC  <siegel@swift.psu.edu>",
  "eventId": "GRB 151122A"
}