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GCN Circular 33039

Subject
IceCube Alert 221210.36: Global MASTER-Net observations report
Date
2022-12-10T09:13:08Z (a year ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
V. Lipunov, V.Kornilov, E.Gorbovskoy, K.Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, D. Vlasenko, 
G.Antipov, D.Zimnukhov, V.Senik, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov,  D.Cheryasov, Ya.Kechin
(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
(Irkutsk State University, API),

L.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez, A.R.Corella, L.H.Rodriguez 
(INAOE, Guillermo Haro Astrophysics Observatory),

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

A. Gabovich, V.Yurkov 
(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 221210.36 (trigger No 7930341,22h 08m 22.08s , +23d 50m 27.6s, R=1.13) errorbox  17 sec after notice time and 69 sec after trigger time at 2022-12-10 08:36:20 UT, with upper limit up to  18.1 mag. Observations started at twilight.  The observations began at zenith distance = 26 deg. The sun  altitude  is -10.2 deg. 

The galactic latitude b = -26 deg., longitude l = 82 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2180073

We obtain a following upper limits.  

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

      74 | 2022-12-10 08:36:20 |         MASTER-Amur | (22h 12m 30.63s , +23d 51m 03.3s) |   C |    10 | 15.5 |        
     109 | 2022-12-10 08:36:50 |         MASTER-Amur | (22h 12m 36.73s , +23d 50m 01.8s) |   C |    20 | 15.9 |        
     154 | 2022-12-10 08:37:29 |         MASTER-Amur | (22h 12m 30.57s , +23d 49m 00.5s) |   C |    30 | 16.3 |        
     208 | 2022-12-10 08:38:19 |         MASTER-Amur | (22h 12m 35.66s , +23d 49m 25.3s) |   C |    40 | 16.5 |        
     273 | 2022-12-10 08:39:18 |         MASTER-Amur | (22h 12m 33.58s , +23d 50m 41.5s) |   C |    50 | 16.6 |        
     347 | 2022-12-10 08:40:28 |         MASTER-Amur | (22h 12m 33.58s , +23d 49m 20.6s) |   C |    60 | 16.9 |        
     437 | 2022-12-10 08:41:48 |         MASTER-Amur | (22h 12m 35.79s , +23d 50m 34.2s) |   C |    80 | 17.0 |        
     546 | 2022-12-10 08:43:27 |         MASTER-Amur | (22h 12m 29.68s , +23d 50m 00.5s) |   C |   100 | 17.3 |        
     676 | 2022-12-10 08:45:26 |         MASTER-Amur | (22h 12m 29.78s , +23d 51m 02.0s) |   C |   120 | 17.5 |        
     830 | 2022-12-10 08:47:46 |         MASTER-Amur | (22h 12m 36.96s , +23d 50m 00.2s) |   C |   150 | 17.6 |        
    1015 | 2022-12-10 08:50:36 |         MASTER-Amur | (22h 12m 29.74s , +23d 49m 00.9s) |   C |   180 | 17.8 |        
    1215 | 2022-12-10 08:53:55 |         MASTER-Amur | (22h 12m 35.93s , +23d 49m 26.4s) |   C |   180 | 17.9 |        
    1414 | 2022-12-10 08:57:15 |         MASTER-Amur | (22h 12m 33.88s , +23d 50m 47.8s) |   C |   180 | 18.1 |        
Filter C is a clear (unfiltred) band. 


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