GCN Circular 5069
Subject
GRB 060502B: Swift/UVOT upper limits
Event
Date
2006-05-03T10:37:39Z (20 years ago)
From
Tracey Poole at MSSL <tsp@mssl.ucl.ac.uk>
T. S. Poole (UCL-MSSL), and E. Troja (INAF-IASFPA) on behalf of the
Swift/UVOT team.
The Swift/UVOT began observing the field of GRB060502b (BAT
Trigger=208275, E. Troja, et. al, GCN 5055) at 17:25:38 UT, 57s after
the BAT trigger (which includes the 10s V filter settling exposure). No
new source is detected at the XRT position (E. Troja, GCN 5063) in
coadded images with any of the filters. The following 5-sigma magnitude
upper limits are not corrected for Galactic extinction; E(B-V) = 0.044.
Filter T_range(s) T_exp(s) 5sigma(mag)
V 57-35329 3002 20.29
B 658-24560 1204 20.62
U 634-41112 3819 21.04
UVW1 610-40198 4038 21.29
UVM2 586-36126 3633 21.31
UVW2 686-34417 2259 21.29
WHITE 74-6845 619 20.49
Where T_range is time post-trigger, and T_exp is the exposure time of
the observation. A 6 arcsec radius was used for all filters.
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