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GCN Circular 32450

Subject
Fermi trigger No 681633544: Global MASTER-Net observations report
Date
2022-08-09T04:45:11Z (3 years 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-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) started inspect of the Fermi GRB220808.28 (trigger No 681633544,02h 39m 16.80s , -26d 54m 00.0s, R=14.35) errorbox  75935 sec after notice time and 75968 sec after trigger time at 2022-08-09 03:45:07 UT, with upper limit up to  17.9 mag. The observations began at zenith distance = 76 deg. The sun  altitude  is -70.4 deg. 

The galactic latitude b = -66 deg., longitude l = 218 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2052047

We obtain a following upper limits.  

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

   68208 | 2022-08-09 01:35:17 |             MASTER- | (02h 51m 00.64s , -29d 03m 48.3s) |   C |    60 | 15.5 |        
   68314 | 2022-08-09 01:37:03 |             MASTER- | (03h 04m 05.98s , -29d 02m 21.8s) |   C |    60 | 14.6 |        
   75998 | 2022-08-09 03:45:07 |         MASTER-OAFA | (02h 55m 11.12s , -41d 27m 47.4s) |   C |    60 | 17.2 |        
   76089 | 2022-08-09 03:46:39 |         MASTER-OAFA | (03h 05m 50.26s , -41d 28m 27.4s) |   C |    60 | 17.0 |        
   76977 | 2022-08-09 04:01:27 |         MASTER-OAFA | (02h 55m 16.07s , -41d 29m 42.0s) |   C |    60 | 17.9 |        
   77898 | 2022-08-09 04:16:47 |         MASTER-OAFA | (02h 55m 13.18s , -41d 29m 52.7s) |   C |    60 | 17.5 |        
Filter C is a clear (unfiltred) band. 


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