{
  "bibcode": "2007GCN..6291....1O",
  "body": "S.R.Oates (UCL-MSSL) and A. Moretti (INAF-OAB) report on behalf of the\nSwift/UVOT team:\n\nThe Swift/UVOT began observing the field of GRB 070411 on 2007-04-11 at \n20:16:37 UT, 243s after the BAT trigger (Moretti et al., GCN 6267). A weak \nafterglow is detected in the WHITE, V and B filters at a refined position:\n\nRA(J2000)  =  07:09:19.903\nDec(J2000) = +01:03:52.95\n\nThe magnitudes and 3 sigma upper limits are provided in the table below.\nThe numbers in square brackets represent the significance of the detections.\n\nFilter  Start(s)   End(s)      Exposure    Magnitude\n-----------------------------------------------------------------\nWHITE   242.9      342.7       98.2      18.76 +/- 0.13\t\t[8.3]\nWHITE   4418.0     4617.8      196.6     20.56   (3sigma UL)\n\nV       349.2      368.9       19.5      17.40 +/- 0.33\t\t[3.3]\nV       4827.9     4911.8      82.6      18.81   (3sigma UL)\n\nB       445.9      455.7       9.6       19.02 +/- 0.65\t        [1.8]\nB       4213.5     4413.2      196.6   \t 20.56 +/- 0.51         [2.1]\n\nU       421.5      4208.2      216.1     19.87   (3sigma UL)\n\nUVW1    397.5      16931.8     833.9     20.89   (3sigma UL)\n\nUVM2    373.1      16297.4     1326.0 \t 21.38   (3sigma UL)\n\nUVW2    474.9      4823.2      216.1     20.37   (3sigma UL)\n------------------------------------------------------------------\n\nThese magnitudes are not corrected for the Galactic reddening of E(B-V)=0.285.\nThe value of the Galactic reddening is uncertain as the burst lies at a \nGalactic latitude of +5 degrees.",
  "circularId": 6291,
  "createdOn": 1176386403000,
  "email": "sro@mssl.ucl.ac.uk",
  "subject": "GRB 070411: Swift/UVOT observations",
  "submitter": "Samantha Oates at MSSL  <sro@mssl.ucl.ac.uk>",
  "eventId": "GRB 070411"
}