GCN Circular 5296

P. Schady (UCL-MSSL),  A. Moretti (INAF-OAB) report on behalf of the 
Swift/UVOT team:

The Swift/UVOT began observing the field of GRB 060708 at 12:17:11 UT on 
2006-07-08, 72 s after the BAT trigger (Moretti et al., GCN 5292
Not found
 
 
). An 
optical counterpart is clearly detected in the white, V, B and U-bands, 
and is detected in the UVW1 filter at the 2sigma level. The position of 
the optical afterglow lies within the XRT error circle at RA,Dec (J2000) = 
00 31 13.82, -33 45 32.4 to within 0.5 arcsec. The lack of a detection in 
the two bluest UV filters suggests a photometric redshift of z ~ 1.8. The 
photometry results are given for the 7 filters below:

Filter  T_Obs(s)  Exposure(s)  Magnitude/3sig_UL

WHITE   122       97           16.81 +/- 0.07
WHITE   5923      196          19.23 +/- 0.32
V       294       52           15.53 +/- 0.16
V       4901      197          19.78 +/- 0.63
B       4287      196          19.60 +/- 0.23
B       5719      193          20.27 +/- 0.65
U       4082      192          18.85 +/- 0.17
U       5514      189          18.78 +/- 0.20
W1      3776-5600 392          20.18 +/- 0.52 (coadded)
M2      3568-5392 385          20.00 (3 sigma UL)
W2      4592-6352 353          19.77 (3 sigma UL)


The values quoted above are not corrected for the expected Galactic 
extinction E(B-V)=0.011