GCN Circular 10463

V.Yurkov, S.Sergienko, D.Varda,
Blagoveschensk Educational State University, Blagoveschensk


E. Gorbovskoy, V. Lipunov, V.Kornilov, A.Belinski, N.Shatskiy, N.Tyurina, 
D.Kuvshinov, P.Balanutsa, V.V.Chazov, P.V.Kortunov, A.Kuznetsov, D.Zemnukhov, 
M. Kornilov
Sternberg Astronomical Institute, Moscow State University

A. Tlatov, A.V. Parhomenko, D. Dormidontov
Kislovodsk Solar Station of the Pulkovo Observatory


V.Krushinski, I.Zalozhnih, T.Kopytova, A. Popov Ural State University, Kourovka


K.Ivanov, S.Yazev, N.M.Budnev, E.Konstantinov, V.Lenok
Irkutsk State University


MASTER  robotic telescope (MASTER-Net: http://observ.pereplet.ru, 200
mm, FOV=8 square degrees (testing telescope) and  Very Wide Field Camera 
(D=50 mm, 1000 square  degrees, 11 Mpx, 36" per pix, mounted on telescope)
located at Blagoveschensk   was responted to the  GRB 100302A (Swift Bat  alert,
  Cummings et al, GCN CIRC 10458)   51 sec after  Notice time and  139 s 
after the GRB time.

There is now OT in our images inside Swift XRT error box (Goad et al., GCN
CIRC 10460).



GRB_time     start UT       end UT       t_exp(s)   mlim     Coadd?
-------------------------------------------------------------------

139s          19:55:25      19:55:55       30       16.9       no
139s-4046s    19:55:25      21:14:17     4020       18.5       68


The coadded image  is available at
http://observ.pereplet.ru/images/GRB100302A/GRB_summ.jpg  .
The message may be cited.

mailto: lipunov@sai.msu.ru