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GCN Circular 27413

Subject
Fermi trigger No 606263732: Global MASTER-Net observations report
Date
2020-03-18T23:00:12Z (4 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-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started inspect of the Fermi GRB 200318A ( Fermi GBM team, GCN 27412) errorbox  55 sec after notice time and 82 sec after trigger time at 2020-03-18 22:36:50 UT, with upper limit up to  20.0 mag. The observations began at zenith distance = 42 deg. The sun  altitude  is -45.4 deg. 

The galactic latitude b = 34 deg., longitude l = 158 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1316766

We obtain a following upper limits.  

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

      93 | 2020-03-18 22:36:50 |      MASTER-Tavrida | (08h 19m 21.28s , +56d 57m 36.1s) |   C |    20 | 17.9 |        
     147 | 2020-03-18 22:37:39 |      MASTER-Tavrida | (08h 24m 37.29s , +56d 33m 38.1s) |   C |    30 | 18.3 |        
     182 | 2020-03-18 22:37:39 |      MASTER-Tavrida | (08h 24m 37.30s , +56d 33m 38.2s) |   C |   100 | 19.0 |  Coadd 
     198 | 2020-03-18 22:38:29 |      MASTER-Tavrida | (08h 24m 30.80s , +56d 32m 51.9s) |   C |    30 | 18.3 |        
     253 | 2020-03-18 22:39:20 |      MASTER-Tavrida | (08h 24m 30.94s , +56d 33m 52.4s) |   C |    40 | 18.5 |        
     324 | 2020-03-18 22:40:21 |      MASTER-Tavrida | (08h 24m 36.88s , +56d 32m 52.9s) |   C |    60 | 18.8 |        
     404 | 2020-03-18 22:40:21 |      MASTER-Tavrida | (08h 24m 36.88s , +56d 32m 52.9s) |   C |   220 | 19.6 |  Coadd 
     410 | 2020-03-18 22:41:41 |      MASTER-Tavrida | (08h 24m 31.25s , +56d 31m 52.8s) |   C |    70 | 19.0 |        
     510 | 2020-03-18 22:43:12 |      MASTER-Tavrida | (08h 24m 37.47s , +56d 32m 22.9s) |   C |    90 | 19.0 |        
     630 | 2020-03-18 22:45:02 |      MASTER-Tavrida | (08h 20m 46.62s , +59d 11m 30.9s) |   C |   110 | 19.2 |        
     785 | 2020-03-18 22:45:02 |      MASTER-Tavrida | (08h 20m 46.62s , +59d 11m 30.9s) |   C |   420 | 20.0 |  Coadd 
     776 | 2020-03-18 22:47:13 |      MASTER-Tavrida | (08h 20m 49.34s , +59d 13m 12.9s) |   C |   140 | 19.3 |        
     952 | 2020-03-18 22:49:54 |      MASTER-Tavrida | (08h 20m 43.99s , +59d 12m 16.3s) |   C |   170 | 19.5 |        
    1148 | 2020-03-18 22:53:05 |      MASTER-Tavrida | (08h 20m 44.65s , +59d 13m 13.8s) |   C |   180 | 19.6 |        
Filter C is a clear (unfiltred) band. 


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