GCN Circular 1114
Subject
GRB010921, optical observation at early time
Date
2001-10-20T23:15:54Z (24 years ago)
From
Hye-Sook Park at LLNL <hpark@llnl.gov>
H.S. Park, G. Williams, S. Barthelmy, D. Hartmann, K. Hurley
report on behalf of the LOTIS collaboration:
LOTIS observed the GRB 010921 optical afterglow area reported
in GCNC #1107 on 09/21/2001 at 06:08:31 (52 min after the burst)
during a routine sky patrol. LOTIS uses 4 11 cm aperture
telephoto lenses to view an 8.8 x 8.8 deg field of view in
the R, V and clear bands. We searched for an optical counterpart
in the region of GRB 010921 and we found no source. The 10 sigma
limits are:
clear filter 15.3 +/- 0.15
V filter 14.2 +/- 0.15
R filter shutter failed to open
Further analys is in progress.
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