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GCN Circular 16507

Subject
GRB 140703A: MASTER optical observations
Date
2014-07-03T10:11:14Z (10 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <gcncirc@observ.inetcomm.ru>
E. Gorbovskoy, V. Lipunov, M.Pruzhinskaya,  P.Balanutsa, V.Kornilov,
D.Kuvshinov, N.Tyurina, A.Kuznetsov
Lomonosov Moscow State University,
Sternberg Astronomical Institute

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

V.Yurkov, Yu.Sergienko, D.Varda, E.Sinyakov, A. Gabovich
Blagoveschensk Educational State University, Blagoveschensk

K.Ivanov, S.Yazev, N.M.Budnev, O.Gres, O.Chuvalaev, V.A.Poleshchuk
Irkutsk State University

V.Krushinski, I.Zalozhnih,  A. Popov
Ural Federal University, Kourovka

Hugo Levato and Carlos Saffe
Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE)

Claudio Mallamaci, Carlos Lopez and Federico Podest
Observatorio Astronomico Felix Aguilar (OAFA)



MASTER II  robotic telescope (MASTER-Net: http://observ.pereplet.ru) 
located in Kislovodsk was pointed to the  GRB 140703A (Kocevski et. al., 
GCN 16503) 2 sec after notice time and 45 sec after trigger time at 
2014-07-03 00:38:03 UT on morning sky in two polarizations.
We have 10 good  frames with an increasing exposition from 10 to 70 
seconds that of that as there overlighting came. On our first (10s 
exposure)  set we haven`t see optical transient (Cunniffe et. al., GCN 
16504; Castro-Tirado et. al., GCN 16505) on our single and coadd image.


Pro.type   T-T_trig   T_start  Exp.time   Limit   Filt.   Tube.
             (mean)     (UT)
  Alert        51     00:38:03     10      15.9     P-       EAST
  Alert        51     00:38:03     10      15.7     P|       WEST
  Coadd        77     00:38:03     40      16.8     P-       EAST
  Coadd        77     00:38:03     40      16.5     P|       WEST
  Coadd       169     00:38:03     180     16.7     P|       WEST
  Coadd       244     00:38:03     310     17.5     P-       EAST
  Coadd       244     00:38:03     570     18.0    White   WEST+EAST
  Alert        72     00:38:24     10      15.9     P-       EAST
  Alert        72     00:38:24     10      15.8     P|       WEST
  Alert        98     00:38:45     20      16.0     P|       WEST
  Alert        98     00:38:45     20      16.2     P-       EAST
  Alert       129     00:39:16     20      15.7     P|       WEST
  Alert       129     00:39:16     20      16.2     P-       EAST
  Coadd       174     00:39:16     90      17.1     P-       EAST
  Coadd       174     00:39:16     90      16.4     P|       WEST
  Alert       164     00:39:47     30      16.4     P-       EAST
  Alert       164     00:39:47     30      15.7     P|       WEST
  Alert       210     00:40:27     40      15.7     P|       WEST
  Alert       210     00:40:27     40      16.5     P-       EAST
  Alert       266     00:41:18     50      15.5     P|       WEST
  Alert       266     00:41:18     50      16.4     P-       EAST
  Coadd       342     00:41:18     80      16.5     P-       EAST

The message may be cited.

[GCN OPS NOTE(03jul14): As per GCN Circ 16508, the Subject-line
was changed from 140629A to 140703A.]
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