TITLE:   GCN CIRCULAR
NUMBER:  32501
SUBJECT: Fermi  trigger No 683476673: Global MASTER-Net observations report 
DATE:    22/08/30 13:30:13 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-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 Fermi GRB220829.61 (trigger No 683476673,03h 07m 12.00s , +55d 21m 00.0s, R=1) errorbox  42739 sec after notice time and 81444 sec after trigger time at 2022-08-30 13:15:13 UT, with upper limit up to  18.2 mag. The observations began at zenith distance = 56 deg. The sun  altitude  is -24.0 deg. 

The galactic latitude b = -2 deg., longitude l = 142 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2071460

We obtain a following upper limits.  

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

   41582 | 2022-08-30 02:10:20 |             MASTER- | (03h 11m 34.98s , +54d 10m 56.7s) |   C |    60 | 17.1 |        
   81474 | 2022-08-30 13:15:13 |         MASTER-Amur | (02h 58m 45.56s , +54d 20m 33.2s) |   C |    60 | 15.2 |        
   81554 | 2022-08-30 13:16:32 |         MASTER-Amur | (03h 12m 35.91s , +54d 21m 02.5s) |   C |    60 | 16.1 |        
   81634 | 2022-08-30 13:17:52 |         MASTER-Amur | (03h 07m 17.65s , +56d 14m 38.4s) |   C |    60 | 18.2 |        
   81714 | 2022-08-30 13:19:12 |         MASTER-Amur | (03h 21m 45.83s , +56d 16m 45.3s) |   C |    60 | 18.1 |        
   81875 | 2022-08-30 13:21:53 |         MASTER-Amur | (03h 04m 25.92s , +52d 27m 28.2s) |   C |    60 | 18.1 |        
Filter C is a clear (unfiltred) band. 


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