{
  "bibcode": "2006GCN..4773....1D",
  "body": "M. De Pasquale (MSSL-UCL), D. Morris (PSU) and P. Roming (PSU)\non the behalf of the Swift UVOT/team:\n\n  The Swift/UVOT began taking data on the field of GRB 060213\nat 13:35:41 UT on 2006-02-15, 48.41 hours after the GRB\n(Pal'shin et al. GCN 4762).\n\nThe UVOT field does not cover the whole IPN error box, but it\nencompasses the field of the uncatalogued source detected\nby the XRT (Morris et al. GCN 4770). No optical afterglow\ncandidate is detected in the summed images of each of the\nUVOT filters down to the following 3-sigma magnitude\nupper limits:\n\nFilter     T_range (sec)    Exp(sec)           3 sigma u.l.\n\n  V        180203 - 187038     1020                 20.1\n\n  B        185073 - 185982     849                  21\n\n  UW1      175186 - 176088     878                  20.4\n\n  UM2      174272 - 180401    1620                  20.7\n\n  UW2      179290 - 186897    1705                  21.1\n\nThe quoted values have not been corrected for Galactic extinction.",
  "circularId": 4773,
  "createdOn": 1140213590000,
  "email": "mdp@mssl.ucl.ac.uk",
  "subject": "Swift UVOT observations of GRB060213",
  "submitter": "Massimiliano de Pasquale at MSSL-UCL  <mdp@mssl.ucl.ac.uk>",
  "eventId": "GRB 060213"
}