{
  "bibcode": "2005GCN..3115....1M",
  "body": "K. McGowan, M. De Pasquale (MSSL), P. Boyd (GSFC/UMBC),\nS. T.  Holland, M. Still (GSFC/USRA), W. Landsman (GSFC),\nS. Hunsberger (PSU), A.  Breeveld (MSSL), P. Roming (PSU), K. Mason,\nP. Schady (MSSL), M.  Ivanushkina (PSU), T. Poole (MSSL), C. Gronwall\n(PSU), A. Blustin (MSSL), P. Brown, S. Rosen, S. Koch (PSU), M. Carter,\nH. Huckle (MSSL), P. Broos (PSU), T.  Kennedy, P. Smith, B. Hancock\n(MSSL), H. Krimm (GSFC/USRA), J. Nousek (PSU), N. Gehrels (GSFC), on\nbehalf of the Swift UVOT team.\n\nThe Swift Ultra-Violet/Optical Telescope (UVOT) began\nsettled observations of the field of GRB 050318 (Krimm\net al; GCN 3111) at 16:39:16 UT, 3,279s after the BAT\ntrigger.  The delay in acquiring the target was caused\nby an earth limb constraint. The first data taken after\nspacecraft settling was a 100s V image, sent directly to\nthe ground through the TDRSS system, with pixel binning\nof 8x8 to reduce telemetry. Binned pixel sizes are 4x4\narcsec and the field of view is 5.3x5.3 arcmin.\nMid-exposure time was 3,329s after the trigger. A\ncomparison against the Digitized Sky Survey reveals a\nnew source inside the BAT and XRT (Nousek et al; GCN\n3113) error circles at:\n\nRA = 03 18 51.2(1) Dec = -46 23 43(2) J2000\n\nand consistent with the R-band detection of Mulchaey &\nBerger (GCN 3114) The V band magnitude is V = 18.4(3).\nThe magnitude is based on ground data and will require\nconfirmation by flight calibration.\n\nThe full-resolution version of this image will be\ntransmitted to the ground during the next Malindi pass\nproviding an improved position.",
  "circularId": 3115,
  "createdOn": 1111197906000,
  "email": "Martin.Still@gsfc.nasa.gov",
  "subject": "GRB 050318: Swift/UVOT detection of afterglow emission",
  "submitter": "Martin Still at NASA/GSFC Swift SSC  <Martin.Still@gsfc.nasa.gov>",
  "eventId": "GRB 050318"
}