GCN Circular 6483
Subject
GRB070518: optical observation
Date
2007-06-02T16:32:24Z (18 years ago)
From
Vasilij Rumjantsev at CrAO <rum@crao.crimea.ua>
V. Rumyantsev (CrAO), V. Biryukov (CrAO, SAI MSU), A. Pozanenko (IKI)
on behalf of larger GRB follow up collaboration report:
We observed error box of GRB070518 with 1-m Zeiss (Simeiz) telescopes
of CrAO in R-band on May 18 between (UT)19:35 and 20:30. Due to
blending of the nearby star (USNO-A2.0 R=3D18.7) and poor seeing (~4.5")
we do not resolve clearly optical transient (Guidorzi et al., GCN
6415) in a combined image. More sophisticated photometry estimation is
underway. A limiting magnitude of the combined image is based on USNO
A2.0:
Mid time (UT), Exposure, R_Lim (3sigma), Seeing
May 18.835 50x60 22.0 4.5"
This message may be cited.
[GCN OPS NOTE(02jun07): The binary attachment was removed as well as the
diagnostics from MIMEDefang reacting to that binary.]