{
  "bibcode": "2008GCN..7858....1S",
  "body": "P. Schady (MSSL/UCL) and V. Mangano (INAF-IASFPA) report on behalf of the\nSwift UVOT team\n\nThe Swift UltraViolet/Optical Telescope (UVOT) began taking settled \nobservations of GRB 080607 92 seconds after the initial Swift BAT trigger \n(Mangano et al., GCN Circ. 7847). A faint afterglow is detected in the first \nwhite and v-band finding chart exposures only at the refined uvot position of \nRA=194.94665, Dec=+15.91965 deg.(= 12:59:47.20 +15:55:10.74), with an accuracy \nof 0.5\". This is consistent with the GRB being at a redshift of z=3.036, as \nreported in GCN Circ. 7849 (Prochaska et al.)\n\nThe first white and v-band finding chart magnitudes with 1-sigma errors are \ngiven below, as well as the 3-sigma upper limits for co-added images from later \nobservations.\n\nFilter Tmid(s) Exp(s)  Magnitude/3-sig UL\n---------------------------------------------\nwh     190.9     98.2    19.79 +/- 0.13\nwh     4806.9    510.6   > 22.07\nv      594.6     393.5   19.44 +/- 0.19\nv      4048.5    300.2   > 20.11\nb      5527.9    412.5   > 21.28\nu      4934.2    432.2   > 20.93\nuvw1   4934.2    432.1   > 20.80\nuvm2   4745.1    432.1   > 20.57\nuvw2   5745.6    358.5   > 20.83\n---------------------------------------------\n\nwhere Tmid is the weighted mid time of the observation. The values quoted above \nare on the UVOT Photometric System (Poole et al, 2008, MNRAS 383,627). They are \nnot corrected for the expected galactic reddening of E(B-V) = 0.02 in the \ndirection of the burst (Schlegel et al. 1998).",
  "circularId": 7858,
  "createdOn": 1212873359000,
  "email": "ps@mssl.ucl.ac.uk",
  "subject": "Swift/UVOT Observations of GRB080607",
  "submitter": "Patricia Schady at MSSL/Swift  <ps@mssl.ucl.ac.uk>",
  "eventId": "GRB 080607"
}