[vsnet-grb-info 2648] GRB060111.2:_MASTER optical limit

[GCN Circulars]

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  4485
SUBJECT: GRB060111.2:_MASTER optical limit
DATE:    06/01/11 19:15:26 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 GRB060111.2
(GRB_TIME is 2006-01-11 04:23:06.12).
The first image was at 2006-01-11 04:25:16 UT, 130 s  after the GRB 
time (a half of an hour befor sunrise).
The unfiltered image is calibrated relative to USNO A2.0 (0.8 R + 0.2 B).
The robot not find OT-candidate in error box.
Our final results on OT magnitude limit are:

  UT (start)    Mean time     After GRB time      m          exptime

     04 25 16   04 25 31        130 s            16.0         30 sec

The first JPG-image   will be  available at
http://observ.pereplet.ru/images/GRB060111.2/1.jpg  .
This work is supported by RFFI  04-02-16411 grant.
This message can be cited.
Mailto: lipunov at sai.msu.ru