GCN Circular 5245
Subject
GRB060602A: Swift/UVOT upper limits
Date
2006-06-08T12:41:19Z (18 years ago)
From
Alexander Blustin at MSSL-UCL <ajb@mssl.ucl.ac.uk>
A. J. Blustin (UCL-MSSL) and P. Schady (UCL-MSSL) report on behalf
of the Swift/UVOT team:
Due to a moon constraint, Swift/UVOT did not begin observing the
field of GRB060602A until 15:55:25 on 2006-06-04, 1.766 days after
the BAT trigger (Schady et al., GCN 5196). We observe no optical/UV
afterglow candidate within the refined BAT error circle (Sakamoto
et al. 5206) or at the position of the afterglow candidate reported
by the NOT team (Jensen et al., GCN 5203). 3-sigma magnitude upper
limits, in coadded images, at the position of the NOT afterglow
candidate are as follows:
Filter T_range(days) Exp(s) 3sig_UL(mag)
V 1.831-3.555 1775 21.3
B 1.827-3.567 1572 22.3
U 1.826-3.564 1775 22.1
UVW1 1.766-3.561 1850 21.7
UVM2 1.832-3.558 1922 22.0
UVW2 1.828-3.617 2265 22.3
Where the time range of the images post-trigger is given in days.
The upper limits are not corrected for Galactic extinction.