[vsnet-grb-info 2023] GRB050815: Maidanak optical observation

[GCN Circulars]

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  3862
SUBJECT: GRB050815: Maidanak optical observation
DATE:    05/08/23 20:01:18 GMT
FROM:    Alexei Pozanenko at IKI, Moscow  <apozanen at iki.rssi.ru>

D. Sharapov,  G. Abdullaeva, M. Ibrahimov (MAO), A.Pozanenko (IKI),
V.Rumyantsev (CrAO) on behalf of larger GRB follow up collaboration report:

We observed the XRT error box (Morris et al, GCNs 3812,3816) of GRB050815
(Fox et al, GCN  3811)  with 1.5m telescope of Maidanak Astronomical
Observatory. Set of  R images were taken between (UT) 17:26 - 19:04, on
August 16.

We do not detect the OT  (Schady et al, GCN 3817) in a stacked image.
Limiting magnitude of the stacked image (14x300 s) is R ~ 22.5.  Detailed
photometry of the observation is underway.

The stacked image can be found in
http://grb.rssi.ru/GRB050815/grb050815_050816_AZT22_R.jpg.

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