GCN Circular 746
Subject
GRB000630, Revised BVRI Field Photometry
Event
Date
2000-07-03T22:03:38Z (26 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 a second night of BVRcIc all-sky photometry for
an 11x11 arcmin field that covers the northern 60 percent of the
error box for GRB000630 with the USNOFS 1.0-m telescope.
We have placed the revised photometric data on our anonymous ftp site:
ftp://ftp.nofs.navy.mil/pub/outgoing/aah/grb/grb000630.dat
The current photometry has a potential external zero-point
error of less than 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.
In particular, the position/magnitudes of the two stars
mentioned in Halpern, et al. (GCN 745) have the revised values of:
Star RA(2000) Dec(2000) R I
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A 14 47 01.67 +41 16 16.9 17.43 16.87
B 14 46 59.26 +41 15 52.2 18.60 18.14
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