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GCN Circular 31102

Subject
Fermi trigger No 659106591: Global MASTER-Net observations report
Date
2021-11-21T15:15:10Z (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, T.Pogrosheva, E.Minkina,
A.Chasovnikov, V.Topolev, V.Grinshpun, D.Kuvshinov,  D. Cheryasov
(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),

A. Tlatov, D. Dormidontov 
(Kislovodsk Solar Station of the Pulkovo Observatory),

A. Gabovich, V.Yurkov 
(Blagoveschensk Educational State University)


MASTER-Kislovodsk robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) started inspect of the Fermi GRB211120.55 (trigger No 659106591,03h 11m 45.60s , +47d 08m 24.0s, R=1.93) errorbox  1 days 4730 sec after notice time and 1 days 4756 sec after trigger time at 2021-11-21 14:29:03 UT, with upper limit up to  17.6 mag. Observations started at twilight.  The observations began at zenith distance = 57 deg. The sun  altitude  is -8.7 deg. 

The galactic latitude b = -9 deg., longitude l = 147 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1791766

We obtain a following upper limits.  

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

   91186 | 2021-11-21 14:29:03 |   MASTER-Kislovodsk | (02h 56m 59.11s , +46d 53m 03.5s) |   C |    60 | 14.0 |        
   91267 | 2021-11-21 14:30:23 |   MASTER-Kislovodsk | (03h 03m 47.10s , +48d 45m 53.9s) |   C |    60 | 14.1 |        
   91429 | 2021-11-21 14:33:05 |   MASTER-Kislovodsk | (03h 11m 07.85s , +50d 38m 48.3s) |   C |    60 | 14.4 |        
   92071 | 2021-11-21 14:43:47 |   MASTER-Kislovodsk | (02h 57m 12.12s , +46d 51m 47.0s) |   C |    60 | 14.4 |        
   92071 | 2021-11-21 14:43:47 |   MASTER-Kislovodsk | (03h 03m 05.74s , +46d 28m 01.8s) |   C |    60 | 16.9 |        
   92231 | 2021-11-21 14:46:27 |   MASTER-Kislovodsk | (03h 03m 46.36s , +48d 45m 35.4s) |   C |    60 | 15.1 |        
   92231 | 2021-11-21 14:46:27 |   MASTER-Kislovodsk | (03h 09m 53.05s , +48d 21m 49.0s) |   C |    60 | 17.2 |        
   92311 | 2021-11-21 14:47:47 |   MASTER-Kislovodsk | (02h 56m 55.41s , +44d 36m 00.6s) |   C |    60 | 16.9 |        
   92391 | 2021-11-21 14:49:07 |   MASTER-Kislovodsk | (03h 11m 04.77s , +50d 40m 15.4s) |   C |    60 | 15.1 |        
   92391 | 2021-11-21 14:49:08 |   MASTER-Kislovodsk | (03h 17m 25.67s , +50d 16m 28.3s) |   C |    60 | 17.3 |        
   93033 | 2021-11-21 14:59:49 |   MASTER-Kislovodsk | (02h 57m 05.41s , +46d 53m 07.7s) |   C |    60 | 14.9 |        
   93033 | 2021-11-21 14:59:49 |   MASTER-Kislovodsk | (03h 03m 00.89s , +46d 29m 23.7s) |   C |    60 | 17.4 |        
   93193 | 2021-11-21 15:02:29 |   MASTER-Kislovodsk | (03h 03m 48.57s , +48d 47m 00.2s) |   C |    60 | 15.2 |        
   93193 | 2021-11-21 15:02:29 |   MASTER-Kislovodsk | (03h 09m 57.05s , +48d 23m 17.8s) |   C |    60 | 17.6 |        
   93273 | 2021-11-21 15:03:50 |   MASTER-Kislovodsk | (02h 56m 50.25s , +44d 34m 38.4s) |   C |    60 | 17.2 |        
   93353 | 2021-11-21 15:05:10 |   MASTER-Kislovodsk | (03h 11m 10.82s , +50d 39m 55.0s) |   C |    60 | 15.3 |        
   93353 | 2021-11-21 15:05:10 |   MASTER-Kislovodsk | (03h 17m 33.46s , +50d 16m 06.6s) |   C |    60 | 17.4 |        
Filter C is a clear (unfiltred) band. 


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