[vsnet-grb-info 17809] GRB 160401A: MASTER-IAC prompt optical observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  19252
SUBJECT: GRB 160401A: MASTER-IAC prompt optical observations 
DATE:    16/04/01 22:07:26 GMT
FROM:    Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov at xray.sai.msu.ru>

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

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

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

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

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

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

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-IAC  robotic telescope (MASTER-Net: http://observ.pereplet.ru) 
located in Teyde observatory was pointed to the  GRB160401.85 (Mereghetti 
et al., GCN 19251) 7 sec after 
notice time 
and 15 sec after trigger time at 2016-04-01 20:20:57 UT. On our first (10s 
exposure)  set we didn't find new optical transient within 
INTEGRAL error-box 
(ra=05 59 00 dec=+26 41 11 r=0.054) brighter then 16.3 (5-sigma upper 
limit).


The message may be cited.