[vsnet-grb-info 3809] GRB 060927: Swift/UVOT Optical Observations

[GCN Circulars]

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  5643
SUBJECT: GRB 060927: Swift/UVOT Optical Observations 
DATE:    06/09/28 11:14:17 GMT
FROM:    Samantha Oates at MSSL  <sro at mssl.ucl.ac.uk>

S.R. Oates (UCL-MSSL), L.M. Barbier (GSFC) report on behalf of the
Swift/UVOT team:

The Swift/UVOT began observing the field of GRB 0609027 at
14:08:45 on 2006-09-27, 51s after the BAT trigger (Barbier
et al., GCN 5627). No new source was detected within the XRT
error circle in the V band 10s settling exposure or in coadded
images in any filter down to the following 3-sigma magnitude upper 
limits:

Filter      Start        End        Exposure   3-sigma UL
-------------------------------------------------------------------
V              51           60              10            18.0

V              175        10273       1302      19.73
B              4197      5829         393        20.93
U              3992      5624         393        20.52
UVW1      3788     11355       561        21.44
UVM2      3583     11177       1279      20.42
UVW2      4606     6182         338        19.84
WHITE     70          6033         491        19.65
-------------------------------------------------------------------

These upper limits are not corrected for Galactic extinction
E(B-V) = 0.062.