[vsnet-grb-info 3833] GRB 060929: Swift/UVOT Optical Observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  5667
SUBJECT: GRB 060929: Swift/UVOT Optical Observations
DATE:    06/09/30 13:34:39 GMT
FROM:    Shashi Pandey at MSSL  <sbp2 at mssl.ucl.ac.uk>

S. B. Pandey (UCL-MSSL) and C. B. Markwardt (GSFC/UMD) report on behalf of
the Swift-UVOT team:

The Swift UVOT began observing the GRB 060929 field (trigger 231702), 78
seconds after the BAT trigger (GCN 5654, 5660). No new source was detected
in the co-added UVOT observations down to the following 3-sigma magnitude
upper limits within the refined XRT error circle (GCN 5663):


Filter        T_range (s)    Exposure (s)    3sigma UL

V             78  - 2356     950             20.71
B             678 - 2295     136             20.55
U             654 - 2271     156             20.25
W1            630 - 2247     156             19.60
M2            606 - 2223     156             19.83
W2            707 - 2333     156             19.98
White         95  - 2309     273             20.96

T_range is calculated from the time of the burst. The upper limits
are not corrected for Galactic extinction E(B-V) = 0.048 along
the line of sight to the burst.