[vsnet-grb-info 3028] GRB060312: Swift UVOT observation

[GCN Circulars]

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  4865
SUBJECT: GRB060312: Swift UVOT observation
DATE:    06/03/12 18:40:37 GMT
FROM:    Sally Hunsberger at PSU/Swift  <sdh3 at psu.edu>

S. D. Hunsberger (PSU), D. Grupe (PSU), and F. Marshall (GSFC)
on behalf of the Swift UVOT team:

The UVOT took a finding chart exposure of 200 seconds with the
V filter starting 14.4 hours after the BAT trigger. No afterglow
candidate has been found in the 2.7'x2.7' sub-image which
covers 100% of the XRT error circle. The 3-sigma UL at the
XRT position is 0.9 cps or 18.0 mag. No correction has
been made for the expected extinction of about 0.6 magnitudes.