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GCN Circular 32734

Subject
Fermi trigger No 687344475: Global MASTER-Net observations report
Date
2022-10-13T10:45:40Z (2 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-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 GRB221013.38 (trigger No 687344475,19h 31m 14.40s , +27d 15m 00.0s, R=3.7) errorbox  1717 sec after notice time and 1759 sec after trigger time at 2022-10-13 09:30:29 UT, with upper limit up to  16.4 mag. Observations started at twilight.  The observations began at zenith distance = 24 deg. The sun  altitude  is -8.1 deg. 

The galactic latitude b =  4 deg., longitude l = 62 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2120250

We obtain a following upper limits.  

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

    1769 | 2022-10-13 09:30:29 |         MASTER-Amur | (19h 23m 21.16s , +26d 19m 01.9s) |   C |    20 | 14.1 |        
    2244 | 2022-10-13 09:38:05 |         MASTER-Amur | (19h 41m 28.26s , +23d 49m 54.7s) |   C |    60 | 14.9 |        
    3856 | 2022-10-13 10:04:56 |         MASTER-Amur | (19h 44m 33.28s , +23d 59m 01.4s) |   C |    60 | 16.2 |        
    4823 | 2022-10-13 10:21:03 |         MASTER-Amur | (19h 44m 32.30s , +23d 56m 50.2s) |   C |    60 | 16.4 |        
Filter C is a clear (unfiltred) band. 


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