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GCN Circular 6540

Subject
UVOT Observations of INTEGRAL burst GRB070615
Date
2007-06-16T08:12:52Z (16 years ago)
From
Patricia Schady at MSSL/Swift <ps@mssl.ucl.ac.uk>
P.Schady (MSSL-UCL) and N. Lyons (Leicster) report on behalf of the 
UVOT team

Swift/UVOT began observing the field of the INTEGRAL burst GRB070615 
10.7hrs after the IBAS trigger in the V and white filters. No afterglow 
is detected in any of the individual or co-added observations down to 
the following 5-sigma upper limits:

Filter           T_mid (s) Exp (s)   UL Mag (5sig)
====================================
V		46354	2887	19.59
White	51435	36		18.07
====================================

where T_mid corresponds to weighted mid time of the observation. The 
values quoted above are not corrected for the expected Galactic 
reddening of E(B-V) = 0.12 mag (Schlegel et al. 1998).
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