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GCN Circular 33050

Subject
Fermi trigger No 692607435: Global MASTER-Net observations report
Date
2022-12-13T10:45:12Z (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-Tunka robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Applied Physics Institute, Irkutsk State University) started inspect of the Fermi GRB221213.29 (trigger No 692607435,19h 59m 36.00s , +21d 23m 24.0s, R=2.37) errorbox  12582 sec after notice time and 12614 sec after trigger time at 2022-12-13 10:27:24 UT, with upper limit up to  12.3 mag. Observations started at twilight.  The observations began at zenith distance = 41 deg. The sun  altitude  is -12.8 deg. 

The galactic latitude b = -5 deg., longitude l = 60 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=2182799

We obtain a following upper limits.  

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

   11262 | 2022-12-13 10:04:22 |             MASTER- | (19h 53m 07.69s , +22d 12m 37.4s) |   C |    60 | 15.9 |        
   11349 | 2022-12-13 10:05:49 |             MASTER- | (19h 54m 12.32s , +20d 18m 31.4s) |   C |    60 | 15.7 |        
   11438 | 2022-12-13 10:07:18 |             MASTER- | (19h 53m 29.65s , +24d 08m 11.3s) |   C |    60 | 16.3 |        
   11528 | 2022-12-13 10:08:48 |             MASTER- | (19h 56m 25.76s , +18d 24m 45.5s) |   C |    60 | 15.7 |        
   11618 | 2022-12-13 10:10:18 |             MASTER- | (20h 09m 38.77s , +22d 14m 19.7s) |   C |    60 | 16.3 |        
   11709 | 2022-12-13 10:11:49 |             MASTER- | (20h 10m 20.00s , +20d 19m 21.0s) |   C |    60 | 16.5 |        
   11980 | 2022-12-13 10:16:20 |             MASTER- | (20h 10m 05.38s , +24d 06m 20.2s) |   C |    60 | 16.9 |        
   12462 | 2022-12-13 10:24:22 |             MASTER- | (19h 53m 13.97s , +22d 13m 36.9s) |   C |    60 | 15.8 |        
   12553 | 2022-12-13 10:25:53 |             MASTER- | (19h 54m 06.49s , +20d 18m 53.6s) |   C |    60 | 15.8 |        
   12644 | 2022-12-13 10:27:24 |             MASTER- | (19h 53m 26.42s , +24d 07m 56.5s) |   C |    60 | 16.5 |        
   12644 | 2022-12-13 10:27:24 |        MASTER-Tunka | (20h 03m 52.87s , +24d 08m 04.8s) |   C |    60 | 12.3 |        
Filter C is a clear (unfiltred) band. 


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