[vsnet-grb-info 3459] GCN 060707: Swift-UVOT observations

[GCN Circulars]

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  5294
SUBJECT: GCN 060707: Swift-UVOT observations
DATE:    06/07/08 16:33:13 GMT
FROM:    Patricia Schady at MSSL/Swift  <ps at mssl.ucl.ac.uk>

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 060707 at 21:32:24 UT on 
2006-07-07, 126 s after the BAT trigger (Moretti et al., GCN 5285). An 
optical counterpart is detected in coadded images in the white, V and 
B-band within the XRT error circle (Guidorzi et al. GCN 5293) and 
consistent with the position reported by de Ugarte Postigo et al. (GCN 
5288). The photometry results are given for the 7 filters below:

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

WHITE   128-7040  679          20.37 +/- 0.29
V       224-6016  702          19.65 +/- 0.49
B       704-6832  397          19.57 +/- 0.17
U       688-6624  251          19.32 (3 sigma UL)
W1      656-6416  247          19.24 (3 sigma UL)
M2      640-6224  254          19.56 (3 sigma UL)
W2      736-7232  409          19.47 (3 sigma UL)


The values quoted above are not corrected for the expected Galactic 
extinction E(B-V)=0.022