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GCN Circular 22104

AMON ICECUBE EHE 130214 (close by time to Fermi trigger): MASTER early follow-up observations
2017-11-06T20:57:20Z (6 years ago)
Vladimir Lipunov at Moscow State U/Krylov Obs <>
V.M. Lipunov, N.V.Tyurina,  E.S. Gorbovskoy, A.S.Kuznetsov,
P.Balanutsa, V.V.Vladimirov, V.V.Chazov, D.Kuvshinov, Lomonosov Moscow State 
University, Sternberg Astronomical Institute

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

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

O.Gress, K.Ivanov, N.M.Budnev, S.Yazev,
Irkutsk State University

H. Levato, C. Saffe,
Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE)

R. Podesta, C. Lopez,  F.Podest
Observatorio Astronomico Felix Aguilar (OAFA)

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

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

MASTER-SAAO  robotic telescope (MASTER-Net: 
located in SAAO (South Africa) was pointed to the ICECube EHE171106.78
trigger number 130214   25 sec 
after notice time  and 71 sec after trigger time at 2017-11-06 18:40:50 UT 
UT. This AMON_ICECUBE_EHE event is temporally(33.0<100sec) coincident with 
the FERMI_GBM event (trignum=531686417).

On our first (180s exposure)  set we  not found optical transient 
within ICECUBE  error-box (ra=340.25 dec=7.31333 r=0.25) brighter then 

Observations are continuated.

The 5-sigma upper limit has been about 19.9 mag

The observations made on zenit distance = 40 degrees, galaxy latitude b = 
-43 degree.
The moon (91 % bright part) below the horizon (The altitude of the Moon is 
-12 degree ).
The sun  altitude  is -18.7 degree.
The object can be observed till sunrise at 2017-11-07 03:32:51

The message may be cited.
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