GCN Circular 608
Subject
GRB 000307, BVRI Field Photometry
Date
2000-03-10T19:57:41Z (25 years ago)
From
Arne A. Henden at USNO/USRA <aah@nofs.navy.mil>
A. Henden (USRA/USNO) reports on behalf of the USNO GRB team:
We have acquired preliminary BVRcIc all-sky photometry for
the field of GRB000307 with the USNOFS 1.0-m telescope on one
photometric night. This 11x11arcmin field covers the IPN
error box and extends a little fainter than V=20. All stars
brighter than V=14 are saturated and should be used with care.
We have placed the photometric data on our anonymous ftp site:
ftp://ftp.nofs.navy.mil/pub/outgoing/aah/grb/grb000307.dat
This file will be updated if an optical transient is discovered.
The current photometry has a potential external zero-point
error of about two percent.
The astrometry in this file is based on linear plate
solutions with respect to USNO-A2.0. The internal errors
are less than 100mas.