GCN Circular 969
Subject
GRB010222: Optical Observations
Event
Date
2001-02-22T21:44:41Z (25 years ago)
From
AAVSO GRB Network at AAVSO <aavso@aavso.org>
The American Association of Variable Star Observers (AAVSO) reports on
behalf of Gary Billings, a member of the AAVSO International GRB Network,
imaging of the optical transient of GRB010222 (GCN 959,960)
at the location given by Henden et al. (GCN 961, 962) and confirmed by
McDowell et al. (GCN 963).
Astrometry on the suspected GRB (using Astrometrica + USNO A2.0) gives RA
14 52 12.6 and Dec 43 01 06, with errors of about 0.5" on each axis,
consistent with the measures given in McDowell et al. (GCN 963) and
Henden et al. (GCN 967).
Images of the possible detection can be downloaded from the following
URLs:
ftp://ftp.aavso.org/grb/grb010222-billings-a.fit -- shot between 1136 UT
and 1229 UT (22 Feb 2001), sum of 28 V-band exposures of 90 seconds.
ftp://ftp.aavso.org/grb/grb010222-billings-b.fit -- shot between 1241 and
1333 UT (22 Feb 2001), sum of 31 V-band exposures of 90 seconds.
This message can be cited.