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GCN Circular 32179

Subject
Fermi GRB 220608A: Global MASTER-Net observations report
Date
2022-06-08T05:30:24Z (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-OAGH robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Mexico (OAGH National Institute for Astrophysics, Optics and Electronics) started inspect of the Fermi GRB 220608A ( Fermi GBM team, GCN 32178) errorbox  40 sec after notice time and 78 sec after trigger time at 2022-06-08 05:05:03 UT, with upper limit up to  18.1 mag. The observations began at zenith distance = 31 deg. The sun  altitude  is -27.5 deg. 

The galactic latitude b = 45 deg., longitude l =  1 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1999930

We obtain a following upper limits.  

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

      89 | 2022-06-08 05:05:03 |         MASTER-OAGH | (15h 18m 06.15s , +00d 12m 39.1s) |   C |    20 | 18.1 |        
      89 | 2022-06-08 05:05:03 |         MASTER-OAGH | (15h 17m 57.32s , +00d 36m 54.2s) |   C |    20 | 17.3 |        
     130 | 2022-06-08 05:05:44 |         MASTER-OAGH | (15h 17m 52.23s , +00d 36m 07.2s) |   C |    20 | 16.4 |        
     130 | 2022-06-08 05:05:44 |         MASTER-OAGH | (15h 18m 01.03s , +00d 11m 39.2s) |   C |    20 | 17.6 |        
     176 | 2022-06-08 05:06:25 |         MASTER-OAGH | (15h 17m 58.38s , +00d 35m 46.9s) |   C |    30 | 15.6 |        
     176 | 2022-06-08 05:06:25 |         MASTER-OAGH | (15h 18m 07.14s , +00d 11m 45.8s) |   C |    30 | 17.2 |        
     232 | 2022-06-08 05:07:16 |         MASTER-OAGH | (15h 17m 55.44s , +00d 38m 26.1s) |   C |    40 | 14.8 |        
     232 | 2022-06-08 05:07:16 |         MASTER-OAGH | (15h 18m 04.16s , +00d 13m 41.8s) |   C |    40 | 16.8 |        
     298 | 2022-06-08 05:08:17 |         MASTER-OAGH | (15h 17m 55.37s , +00d 36m 37.7s) |   C |    50 | 15.3 |        
     298 | 2022-06-08 05:08:17 |         MASTER-OAGH | (15h 18m 04.07s , +00d 11m 56.5s) |   C |    50 | 17.3 |        
     379 | 2022-06-08 05:09:28 |         MASTER-OAGH | (15h 17m 58.24s , +00d 38m 23.5s) |   C |    70 | 14.9 |        
     379 | 2022-06-08 05:09:28 |         MASTER-OAGH | (15h 18m 06.90s , +00d 13m 38.7s) |   C |    70 | 17.3 |        
     465 | 2022-06-08 05:11:00 |         MASTER-OAGH | (15h 08m 20.46s , +01d 14m 14.4s) |   C |    60 | 15.3 |        
     465 | 2022-06-08 05:11:00 |         MASTER-OAGH | (15h 08m 28.99s , +00d 49m 33.2s) |   C |    60 | 17.0 |        
     804 | 2022-06-08 05:15:53 |         MASTER-OAGH | (15h 17m 10.99s , -00d 11m 35.4s) |   C |   150 | 16.2 |        
     804 | 2022-06-08 05:15:53 |         MASTER-OAGH | (15h 17m 19.75s , -00d 35m 47.3s) |   C |   150 | 17.6 |        
     990 | 2022-06-08 05:18:44 |         MASTER-OAGH | (15h 17m 17.07s , -00d 10m 35.4s) |   C |   180 | 15.7 |        
     990 | 2022-06-08 05:18:44 |         MASTER-OAGH | (15h 17m 25.80s , -00d 35m 21.6s) |   C |   180 | 17.4 |        
    1191 | 2022-06-08 05:22:06 |         MASTER-OAGH | (15h 17m 14.38s , -00d 10m 51.0s) |   C |   180 | 16.1 |        
    1191 | 2022-06-08 05:22:06 |         MASTER-OAGH | (15h 17m 22.89s , -00d 34m 13.3s) |   C |   180 | 17.6 |        
Filter C is a clear (unfiltred) band. 


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