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GCN Circular 26639

Subject
Fermi trigger No 599954133: Global MASTER-Net observations report
Date
2020-01-06T10:45:12Z (5 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, F.Balakin, 
V.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva,
D.Kuvshinov,  D. Cheryasov
(Lomonosov Moscow State University, SAI, Physics Department),

R. Podesta, C.Lopez, F. Podesta, C.Francile 
(Observatorio Astronomico Felix Aguilar OAFA),

H.Levato 
(Instituto de Ciencias Astronomicas, de la Tierra y del Espacio ICATE),

R. Rebolo, M. Serra 
(The Instituto de Astrofisica de Canarias),

D. Buckley 
(South African Astronomical Observatory),

O.A. Gres, N.M. Budnev, O.Ershova 
(Irkutsk State University, API),

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

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




MASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) started inspect of the Fermi GRB200105.91 (trigger No 599954133,21h 19m 07.92s , -35d 37m 01.2s, R=25.9) errorbox  293 sec after notice time and 348 sec after trigger time at 2020-01-05 22:01:17 UT, with upper limit up to  12.1 mag. The observations began at zenith distance = 75 deg. The sun  altitude  is -34.4 deg. 

MASTER-Tunka robotic telescope  located in Russia (Applied Physics Institute, Irkutsk State University) started inspect of the Fermi GRB200105.91 errorbox  293 sec after notice time and 44970 sec after trigger time at 2020-01-06 10:24:59 UT, with upper limit up to  16.7 mag. Observations started at twilight.  The observations began at zenith distance = 68 deg. The sun  altitude  is -10.3 deg. 

The galactic latitude b = -45 deg., longitude l =  9 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1250695

We obtain a following upper limits.  

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

     378 | 2020-01-05 22:01:17 |         MASTER-SAAO | (23h 12m 49.52s , -52d 06m 53.1s) |   C |    60 | 12.1 |        
   45001 | 2020-01-06 10:24:59 |        MASTER-Tunka | (22h 20m 46.93s , -12d 13m 08.7s) |   C |    60 | 15.6 |        
   45128 | 2020-01-06 10:27:06 |        MASTER-Tunka | (22h 15m 09.86s , -14d 11m 13.6s) |   C |    60 | 15.8 |        
   45219 | 2020-01-06 10:28:37 |        MASTER-Tunka | (22h 20m 48.08s , -12d 13m 08.5s) |   C |    60 | 16.2 |        
   45309 | 2020-01-06 10:30:07 |        MASTER-Tunka | (22h 20m 50.59s , -12d 11m 37.2s) |   C |    60 | 16.3 |        
   45493 | 2020-01-06 10:33:11 |        MASTER-Tunka | (22h 15m 05.05s , -14d 11m 19.1s) |   C |    60 | 16.3 |        
   45584 | 2020-01-06 10:34:43 |        MASTER-Tunka | (22h 23m 26.07s , -14d 12m 15.3s) |   C |    60 | 16.7 |        
   45676 | 2020-01-06 10:36:14 |        MASTER-Tunka | (22h 31m 40.66s , -14d 13m 14.8s) |   C |    60 | 16.6 |        
   45767 | 2020-01-06 10:37:45 |        MASTER-Tunka | (22h 31m 37.84s , -14d 11m 22.8s) |   C |    60 | 16.7 |        
Filter C is a clear (unfiltred) band. 


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