[vsnet-grb-info 2877] GRB 060203: Swift/UVOT upper limits

[GCN Circulars]

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  4714
SUBJECT: GRB 060203: Swift/UVOT upper limits
DATE:    06/02/08 14:52:08 GMT
FROM:    Patricia Schady at MSSL/Swift  <ps at mssl.ucl.ac.uk>

P. Schady (PSU/UCL-MSSL), A. Retter (PSU), P. Brown (PSU), D. Vanden. Berk 
(PSU), F. Marshall (GSFC), N. Gehrels (GSFC) on behalf of the Swift/UVOT 
team report:

The Swift/UVOT began taking data on the field of GRB 060203 at
00:45:26 UT on 2006-02-04, approximately 50mins after the BAT trigger (Retter 
et al., GCN 4641). No afterglow candidate is detected in the summed images of 
any filter, either within the refined XRT error circle (Morris et al., GCN 
4651) or at the position reported by Malesani et al. (GCN 4645) down to the 
following 3-sigma magnitude upper limits:

Filter  T_range(s)  Exp(s)  3sigUL(mag)
V       2976-27952    2618     20.7
B       5392-46016    4005     21.9
U       9808-51808    2952     21.4
UVW1    9600-51072    2516     20.7
UVM2    9392-50160    2829     21.0
UVW2    8976-34464    3816     21.4
White	8784-40240    3121     21.9

These magnitudes are uncorrected for Galactic extinction;
E(B-V) = 0.158.