[vsnet-grb-info 26831] Fermi GRB 201120B: Global MASTER-Net observations report

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  28934
SUBJECT: Fermi GRB 201120B: Global MASTER-Net observations report 
DATE:    20/11/20 23:45:09 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-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 GRB 201120B ( Fermi GBM team, GCN 28933) errorbox  2525 sec after notice time and 36327 sec after trigger time at 2020-11-20 20:41:16 UT, with upper limit up to  21.0 mag. The observations began at zenith distance = 24 deg. The sun  altitude  is -32.5 deg. 

The galactic latitude b = -36 deg., longitude l = 266 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1486357

We obtain a following upper limits.  

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

   36417 | 2020-11-20 20:41:16 |         MASTER-SAAO | (03h 29m 13.76s , -50d 03m 39.9s) |   C |   180 | 20.6 |        
   36417 | 2020-11-20 20:41:16 |         MASTER-SAAO | (03h 27m 55.01s , -50d 04m 02.4s) |   C |   180 | 21.0 |        
   37016 | 2020-11-20 20:51:15 |         MASTER-SAAO | (03h 29m 17.44s , -50d 03m 25.9s) |   C |   180 | 20.6 |        
   37016 | 2020-11-20 20:51:15 |         MASTER-SAAO | (03h 27m 58.46s , -50d 03m 48.2s) |   C |   180 | 20.9 |        
   40569 | 2020-11-20 21:50:28 |         MASTER-SAAO | (03h 44m 24.56s , -48d 02m 26.7s) |   C |   180 | 20.3 |        
   40569 | 2020-11-20 21:50:28 |         MASTER-SAAO | (03h 43m 08.88s , -48d 02m 57.6s) |   C |   180 | 20.5 |        
   40769 | 2020-11-20 21:53:48 |         MASTER-SAAO | (04h 21m 31.88s , -46d 01m 43.8s) |   C |   180 | 20.3 |        
   40769 | 2020-11-20 21:53:48 |         MASTER-SAAO | (04h 20m 18.73s , -46d 02m 16.7s) |   C |   180 | 20.5 |        
   41169 | 2020-11-20 22:00:28 |         MASTER-SAAO | (03h 44m 25.03s , -48d 03m 15.9s) |   C |   180 | 19.6 |        
   41169 | 2020-11-20 22:00:28 |         MASTER-SAAO | (03h 43m 09.41s , -48d 03m 48.5s) |   C |   180 | 19.8 |        
   41370 | 2020-11-20 22:03:48 |         MASTER-SAAO | (04h 21m 32.38s , -46d 02m 51.0s) |   C |   180 | 17.0 |        
   41370 | 2020-11-20 22:03:48 |         MASTER-SAAO | (04h 20m 19.31s , -46d 03m 24.6s) |   C |   180 | 17.2 |        
   41770 | 2020-11-20 22:10:28 |         MASTER-SAAO | (03h 58m 32.69s , -46d 02m 20.4s) |   C |   180 | 16.9 |        
   41770 | 2020-11-20 22:10:28 |         MASTER-SAAO | (03h 57m 19.68s , -46d 02m 54.0s) |   C |   180 | 17.1 |        
   42449 | 2020-11-20 22:21:47 |         MASTER-SAAO | (03h 58m 35.28s , -46d 03m 51.4s) |   C |   180 | 17.5 |        
   42449 | 2020-11-20 22:21:47 |         MASTER-SAAO | (03h 57m 22.36s , -46d 04m 24.3s) |   C |   180 | 17.6 |        
   42648 | 2020-11-20 22:25:07 |         MASTER-SAAO | (04h 12m 01.44s , -44d 01m 57.1s) |   C |   180 | 17.8 |        
   42648 | 2020-11-20 22:25:07 |         MASTER-SAAO | (04h 10m 50.90s , -44d 02m 30.9s) |   C |   180 | 18.0 |        
   42848 | 2020-11-20 22:28:27 |         MASTER-SAAO | (04h 19m 11.18s , -50d 02m 56.4s) |   C |   180 | 17.2 |        
   42848 | 2020-11-20 22:28:27 |         MASTER-SAAO | (04h 17m 52.33s , -50d 03m 28.6s) |   C |   180 | 17.4 |        
   43048 | 2020-11-20 22:31:46 |         MASTER-SAAO | (03h 50m 37.41s , -54d 02m 54.3s) |   C |   180 | 17.7 |        
   43048 | 2020-11-20 22:31:46 |         MASTER-SAAO | (03h 49m 11.48s , -54d 03m 25.0s) |   C |   180 | 17.8 |        
   43248 | 2020-11-20 22:35:06 |         MASTER-SAAO | (04h 11m 58.86s , -44d 02m 46.0s) |   C |   180 | 18.5 |        
   43248 | 2020-11-20 22:35:06 |         MASTER-SAAO | (04h 10m 48.31s , -44d 03m 19.0s) |   C |   180 | 18.8 |        
   43388 | 2020-11-20 22:38:26 |         MASTER-SAAO | (04h 05m 35.65s , -54d 58m 07.2s) |   C |    60 | 17.5 |        
   43388 | 2020-11-20 22:38:26 |         MASTER-SAAO | (04h 04m 07.77s , -54d 58m 38.0s) |   C |    60 | 17.6 |        
   43468 | 2020-11-20 22:39:46 |         MASTER-SAAO | (04h 04m 13.81s , -54d 59m 41.8s) |   V |    60 | 17.4 |        
   44367 | 2020-11-20 22:54:46 |         MASTER-SAAO | (04h 03m 52.20s , -54d 58m 30.4s) |   C |    60 | 17.4 |        
   44367 | 2020-11-20 22:54:46 |         MASTER-SAAO | (04h 02m 24.79s , -54d 59m 01.0s) |   C |    60 | 17.4 |        
   44447 | 2020-11-20 22:56:06 |         MASTER-SAAO | (04h 03m 45.90s , -54d 59m 30.1s) |   B |    60 | 17.1 |        
   44447 | 2020-11-20 22:56:06 |         MASTER-SAAO | (04h 02m 18.03s , -54d 59m 57.1s) |   V |    60 | 17.3 |        
   45785 | 2020-11-20 23:17:24 |         MASTER-SAAO | (04h 30m 40.58s , -48d 03m 30.6s) |   C |   180 | 15.7 |        
Filter C is a clear (unfiltred) band. 


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