[vsnet-grb-info 2336] GRB051028:MASTER observations

[GCN Circulars]

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  4173
SUBJECT: GRB051028:MASTER observations
DATE:    05/10/28 21:29:54 GMT
FROM:    Vladimir Lipunov at Moscow State U/Krylov Obs  <gcncirc at observ.inetcomm.ru>

V. Lipunov, V.Kornilov, D.Kuvshinov, N.Tyurina, A.Belinski, E.Gorbovskoy,
A.Krylov, G.Borisov, A.Sankovich, G. Antipov, V.Vladimirov

Sternberg Astronomical Institute, Moscow Union 'Optic'
MASTER  robotic system (http://observ.pereplet.ru) responded to
HETE GRB051028.6 (GCN 4172).
An automated response took  first image 2005-10-28 16:59:56 UT,
03h 23 m  after the GRB time (GCN4171).
The unfiltered image is calibrated relative to USNO A2.0 (0.8 R + 0.2 B).
We  not find OT-candidate in error box brighter then  17.9 on the 
summ of  9 images between 17 32 40 - 18 03 03 UT.
Mean time is 17 48 09 ( 4 h 12 min after GRB Time).

The JPG-image of the summ   will be  available at
http://observ.pereplet.ru/images/GRB050828/1.jpg  (In error circ you can 
see candidates which we recognised with 2MASS ).
The reduction is continuing.
This work is supported by RFFI  04-02-16411 grant.
This message can be cited.
Mailto: lipunov at sai.msu.ru