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GCN Circular 28961

Subject
Fermi trigger No 628278856: Global MASTER-Net observations report
Date
2020-11-28T20:15:21Z (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),

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-IAC robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Spain (IAC Teide Observatory) started inspect of the Fermi GRB201128.75 (trigger No 628278856,22h 30m 33.60s , -57d 13m 48.0s, R=10.1) errorbox  7318 sec after notice time and 7348 sec after trigger time at 2020-11-28 19:56:39 UT, with upper limit up to  17.4 mag. The observations began at zenith distance = 79 deg. The sun  altitude  is -23.8 deg. 

The galactic latitude b = -51 deg., longitude l = 333 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1492096

We obtain a following upper limits.  

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

    7438 | 2020-11-28 19:56:39 |          MASTER-IAC | (22h 39m 06.10s , -50d 07m 37.6s) |   C |   180 | 17.1 |        
    7638 | 2020-11-28 19:59:59 |          MASTER-IAC | (22h 39m 11.90s , -50d 07m 33.0s) |   C |   180 | 17.4 |        
    7837 | 2020-11-28 20:03:18 |          MASTER-IAC | (22h 31m 08.10s , -50d 06m 18.0s) |   C |   180 | 17.2 |        
    8037 | 2020-11-28 20:06:38 |          MASTER-IAC | (22h 31m 08.11s , -50d 07m 28.0s) |   C |   180 | 17.4 |        
Filter C is a clear (unfiltred) band. 


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