GCN Circular 26251

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
(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-Amur robotic telescope  (Global MASTER-Net: 
http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, 
vol. 2010, 30L)  located in Russia (Blagoveshchensk State Pedagogical 
University) was pointed to the Swift GRB191115.48 (trigger No 937114,19h 
28m 42.96s , +38d 43m 48.0s, R=0.05) errorbox  43 sec after trigger time 
at 2019-11-15 11:27:04 UT, with upper limit up to  16.2 mag. The 
observations began at zenith distance = 44 deg. The sun  altitude  is 
-35.0 deg.

The galactic latitude b = 10 deg., longitude l = 72 deg.


Real time updated cover map and OT discovered available here:
https://master.sai.msu.ru/site/master2/observ.php?id=1196549

We obtain a following upper limits.

Tmid-T0  |          Site       |Filt.| Expt. | Limit| Comment
_________|_____________________|_____|_______|______|________

       49 |         MASTER-Amur |  P/ |    10 | 15.5 |
       67 |         MASTER-Amur |  P/ |    10 | 15.5 |
       90 |         MASTER-Amur |  P/ |    20 | 15.5 |
      118 |         MASTER-Amur |  P/ |    20 | 15.5 |
      152 |         MASTER-Amur |  P/ |    30 | 16.2 |


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