GCN Circular 6485
Subject
GRB070520B: optical observations
Date
2007-06-02T16:32:32Z (17 years ago)
From
Vasilij Rumjantsev at CrAO <rum@crao.crimea.ua>
D. Shakhovskoy, 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 GRB070520B (Moretti et al., GCN 6425) with AZT-11
(1.25m) telescope of CrAO in R-band under not optimal weather conditions
(seeing ~3.6 arcsec) on May 20 between (UT)18:47 and 19:21, i.e. starting 1
hour after burst onset. The weather condition No object is found in a
refined XRT error box (Moretti et al., GCN 6438 ). Limiting magnitude of a
combined image is based on USANO A2.0:
Mid time (UT), Exposure, R_Lim (3sigma)
May 20.753 6x300 21.0
The combined image can be found in
http://grb.rssi.ru/GRB070520B/GRB070520B_AZT11.gif
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.]