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GCN Circular 29022

Subject
IceCube Alert 201209.43: Global MASTER-Net observations report
Date
2020-12-10T01:13:13Z (4 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@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),

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-OAFA robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Argentina (OAFA observatory of San Juan National University) was pointed to the IceCube Alert 201209.43 (trigger No 8912764,00h 25m 36.24s , -10d 01m 04.8s, R=0.59) errorbox  39512 sec after notice time and 52475 sec after trigger time at 2020-12-10 00:50:19 UT, with upper limit up to  18.8 mag. Observations started at twilight.  The observations began at zenith distance = 25 deg. The sun  altitude  is -15.1 deg. 

The galactic latitude b = -72 deg., longitude l = 104 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1499288

We obtain a following upper limits.  

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

   52505 | 2020-12-10 00:50:19 |         MASTER-OAFA | (00h 27m 05.58s , -10d 47m 41.9s) |   C |    60 | 17.7 |        
   52585 | 2020-12-10 00:51:38 |         MASTER-OAFA | (00h 26m 49.69s , -08d 47m 16.1s) |   C |    60 | 18.2 |        
   52864 | 2020-12-10 00:56:17 |         MASTER-OAFA | (00h 26m 59.38s , -10d 49m 18.5s) |   C |    60 | 18.5 |        
   52943 | 2020-12-10 00:57:37 |         MASTER-OAFA | (00h 35m 14.46s , -10d 49m 09.4s) |   C |    60 | 18.8 |        
   53023 | 2020-12-10 00:58:57 |         MASTER-OAFA | (00h 26m 53.61s , -08d 47m 24.0s) |   C |    60 | 18.7 |        
   53297 | 2020-12-10 01:03:30 |         MASTER-OAFA | (00h 35m 05.27s , -09d 23m 20.0s) |   C |    60 | 18.4 |        
Filter C is a clear (unfiltred) band. 


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