[vsnet-grb-info 26827] Fermi trigger No 627557935: Global MASTER-Net observations report

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  28930
SUBJECT: Fermi  trigger No 627557935: Global MASTER-Net observations report 
DATE:    20/11/20 19:30:52 GMT
FROM:    Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov at 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),

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 GRB201120.40 (trigger No 627557935,18h 30m 52.80s , +19d 28m 48.0s, R=15.6) errorbox 20622 sec after trigger time at 2020-11-20 15:22:32 UT, with upper limit up to  18.1 mag. Observations started at twilight.  The observations began at zenith distance = 53 deg. The sun  altitude  is -12.6 deg. 

The galactic latitude b = 13 deg., longitude l = 49 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1486321

We obtain a following upper limits.  

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

   20652 | 2020-11-20 15:22:32 |      MASTER-Tavrida | (17h 25m 54.87s , +25d 55m 53.1s) |   C |    60 | 17.6 |        
   21174 | 2020-11-20 15:31:14 |      MASTER-Tavrida | (17h 26m 19.17s , +23d 56m 17.6s) |   C |    60 | 17.8 |        
   21254 | 2020-11-20 15:32:34 |      MASTER-Tavrida | (17h 43m 48.96s , +23d 55m 38.5s) |   C |    60 | 18.1 |        
   21335 | 2020-11-20 15:33:55 |      MASTER-Tavrida | (17h 31m 09.41s , +19d 55m 31.8s) |   C |    60 | 17.8 |        
   23037 | 2020-11-20 16:02:17 |      MASTER-Tavrida | (17h 25m 39.88s , +25d 55m 48.0s) |   C |    60 | 17.8 |        
   23439 | 2020-11-20 16:09:00 |      MASTER-Tavrida | (17h 34m 33.73s , +25d 54m 09.2s) |   C |    60 | 17.0 |        
   23680 | 2020-11-20 16:13:00 |      MASTER-Tavrida | (17h 26m 12.23s , +23d 55m 51.7s) |   C |    60 | 16.7 |        
   23761 | 2020-11-20 16:14:21 |      MASTER-Tavrida | (17h 35m 04.55s , +23d 54m 47.7s) |   C |    60 | 17.3 |        
   23841 | 2020-11-20 16:15:41 |      MASTER-Tavrida | (17h 43m 43.48s , +23d 53m 43.8s) |   C |    60 | 17.8 |        
   23922 | 2020-11-20 16:17:02 |      MASTER-Tavrida | (17h 52m 33.84s , +23d 53m 46.7s) |   C |    60 | 17.6 |        
   24083 | 2020-11-20 16:19:43 |      MASTER-Tavrida | (17h 39m 39.73s , +19d 53m 43.6s) |   C |    60 | 14.5 |        
Filter C is a clear (unfiltred) band. 


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