GCN Circular 5580
Subject
GRB060919: Swift/UVOT optical observations
Event
Date
2006-09-20T10:58:39Z (20 years ago)
From
Pete Roming at PSU <roming@astro.psu.edu>
A. Breeveld (MSSL/UCL) and C. Guidorzi (Univ Bicoca&INAF-OAB) report on
behalf of the Swift/UVOT team:
The Swift/UVOT began taking data on 2006-09-19 73s after the burst
(Guidorzi et al. GCN 5575). At the position of the XRT error circle
(Guidorzi et al. GCN 5577) there are no new sources. In the summed UVOT
images we obtain the following 3 sigma upper limits:
Filter T_range(s) Exp(s) 3sig_UL(mag)
V 73-11544 2310 20.24
B 674-24585 1330 21.02
U 650-24547 2202 20.88
UVW1 626-23633 1869 20.99
UVM2 602-12448 1134 21.10
UVW2 703-7232 424 20.65
White 91-18800 982.1 21.00
(160-650 nm)
These magnitudes are not corrected for the expected extinction of E(B-V)=0.072