[vsnet-grb-info 17662] GRB 160227A: MASTER OT Detection

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  19099
SUBJECT: GRB 160227A: MASTER OT Detection 
DATE:    16/02/27 19:49:53 GMT
FROM:    Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov at xray.sai.msu.ru>

E. Gorbovskoy, V. Lipunov,N.Tyurina, V.Kornilov, P.Balanutsa, 
A.Kuznetsov,  D.Kuvshinov
Lomonosov Moscow State University,
Sternberg Astronomical Institute, Moscow State University

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

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

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

R. Rebolo, M. Serra-Ricart, N. Lodieu, G. Israelian
The Instituto de Astrofisica de Canarias

D.Buckley, S. Potter, M.Kotze
South African Astronomical Observatory


MASTER II  robotic telescope (MASTER-Net: http://observ.pereplet.ru) 
located in Ural was pointed to the  GRB160227A 30 after 
notice time and 115 sec after trigger time at 2016-02-27 19:34:03 UT. On 
our first (20s exposure)  set we  found 1 optical transient within SWIFT 
error-box (ra=12 59 08 dec=+78 38 19 r=0.050000) brighter then 17.6.


RA 12h 59m 14.13s
DEC +78d 40m 44.2s
  mag~17.36

The 5-sigma upper limit has been about 18.0
The message may be cited.