[vsnet-grb-info 25769] IceCube Alert 200530.33: Global MASTER-Net observations report

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  27869
SUBJECT: IceCube Alert 200530.33: Global MASTER-Net observations report 
DATE:    20/05/30 17:13:08 GMT
FROM:    Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov at xray.sai.msu.ru>

V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, F.Balakin, 
V.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva,
D.Kuvshinov,  D. Cheryasov
(Lomonosov Moscow State University, SAI, Physics Department),

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

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

R. Rebolo, M. Serra 
(The Instituto de Astrofisica de Canarias),

D. Buckley 
(South African Astronomical Observatory),

O.A. Gres, N.M. Budnev, O.Ershova 
(Irkutsk State University, API),

A. Tlatov, D. Dormidontov 
(Kislovodsk Solar Station of the Pulkovo Observatory),

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




MASTER-Amur robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Blagoveshchensk State Pedagogical University) started inspect of the IceCube Alert 200530.33 (trigger No 35473338,17h 01m 28.80s , +26d 36m 36.0s, R=2.67) errorbox  32838 sec after notice time and 32887 sec after trigger time at 2020-05-30 17:02:37 UT, with upper limit up to  16.5 mag. Observations started at twilight.  The observations began at zenith distance = 26 deg. The sun  altitude  is -15.2 deg. 

The galactic latitude b = 34 deg., longitude l = 48 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1369567

We obtain a following upper limits.  

Tmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________

   32918 | 2020-05-30 17:02:37 |         MASTER-Amur | (16h 50m 00.36s , +28d 00m 08.3s) |   C |    60 | 16.2 |        
   33057 | 2020-05-30 17:03:56 |         MASTER-Amur | (17h 01m 06.96s , +26d 35m 43.9s) |   C |   180 | 16.5 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.