GCN Circular 2312
Subject
GRB030723, optical observations
Date
2003-07-23T21:38:26Z (21 years ago)
From
Arne A. Henden at USNO/USRA <aah@nofs.navy.mil>
B. Monard (Bronberg Obs.) reports on behalf of the AAVSO
International GRB network:
Observations of the HETE XRF/GRB030723 (triger 2777) error circle
were made with the Bronberg 0.30m telescope + unfiltered CCD.
Ten 45-second exposures with UT midpoint of 030723.806 (12.9hrs
after the burst) were stacked, with a limiting magnitude
of 20.5CR (based on USNO-A red magnitudes). No new object
is seen down to approximately CR=20.0 when comparing against
a DSS2-red image.
The AAVSO International GRB network is greatful for a generous grant from
the Curry Foundation and to NASA for the financial support for the High
Energy Workshops for Amateur Astronomers.