{
  "bibcode": "2007GCN..6036....1M",
  "body": "F. E. Marshall (NASA/GSFC) and J. Racusin (PSU) report on behalf\nof the Swift team:\n\nSwift/UVOT observed the field of GRB 070125 (Hurley et al., GCN Circ. 6024)\nstarting 13 hours after the burst. A bright, fading source\nat the position reported by Cenko (GCN Circ. 6034)\nis detected with the V and B filters. Additional observations\nare now being taken with the other UVOT filters.\n\nThe table below gives the measured magnitudes for the currently\navailable data. T_start and T_end are the start and stop\ntimes of the summed exposures in seconds from the trigger.\nNo correction has been made for the expected\nGalactic reddening of E(B-V) = 0.05.\n\nFilter  T_start   T_end  Exposure  Mag   Error\nV       46685     53261   1736    18.54  0.06\nV       58269     63986   1590    18.74  0.07\nB       47550     54163   1674    18.92  0.03\nB       59126     59947    798    19.03  0.06",
  "circularId": 6036,
  "createdOn": 1169832023000,
  "email": "marshall@milkyway.gsfc.nasa.gov",
  "subject": "GRB 070125: UVOT Observations of a Fading Optical Afterglow",
  "submitter": "Frank Marshall at GSFC  <marshall@milkyway.gsfc.nasa.gov>",
  "eventId": "GRB 070125"
}