TITLE:   GCN CIRCULAR
NUMBER:  32447
SUBJECT: IceCube Alert 220808.33: Global MASTER-Net observations report 
DATE:    22/08/08 09:13:10 GMT
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-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 220808.33 (trigger No 45252263,08h 49m 19.92s , -42d 43m 01.2s, R=0.65) errorbox  2304 sec after notice time and 2350 sec after trigger time at 2022-08-08 08:39:07 UT, with upper limit up to  17.7 mag. The observations began at zenith distance = 85 deg. The sun  altitude  is -34.0 deg. 

The galactic latitude b =  1 deg., longitude l = 264 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2052105

We obtain a following upper limits.  

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

    2441 | 2022-08-08 08:39:07 |         MASTER-OAFA | (08h 49m 31.56s , -43d 27m 52.1s) |   C |   180 | 15.9 |        
    3075 | 2022-08-08 08:49:42 |         MASTER-OAFA | (08h 49m 47.14s , -43d 25m 32.5s) |   C |   180 | 17.4 |        
    3287 | 2022-08-08 08:53:14 |         MASTER-OAFA | (08h 49m 52.73s , -41d 47m 13.7s) |   C |   180 | 14.3 |        
    3709 | 2022-08-08 09:00:16 |         MASTER-OAFA | (08h 49m 43.30s , -43d 23m 54.1s) |   C |   180 | 17.7 |        
Filter C is a clear (unfiltred) band. 


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