[vsnet-grb-info 27221] Fermi GRB 210119A: Global MASTER-Net observations report

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  29324
SUBJECT: Fermi GRB 210119A: Global MASTER-Net observations report 
DATE:    21/01/19 03:30:33 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 210119A ( Fermi GBM team, GCN 29322) errorbox 45 sec after trigger time at 2021-01-19 02:54:54 UT, with upper limit up to  15.1 mag. Observations started at twilight.  The observations began at zenith distance = 65 deg. The sun  altitude  is -11.3 deg. 

MASTER-OAFA robotic telescope  located in Argentina (OAFA observatory of San Juan National University) started inspect of the Fermi GRB 210119A errorbox  57 sec after notice time and 108 sec after trigger time at 2021-01-19 02:55:58 UT, with upper limit up to  12.2 mag. The observations began at zenith distance = 84 deg. The sun  altitude  is -32.3 deg. 

The galactic latitude b = -26 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=1529080

We obtain a following upper limits.  

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

      50 | 2021-01-19 02:54:54 |         MASTER-SAAO | (18h 32m 27.92s , -60d 49m 23.7s) | P\  |    10 | 15.1 |        
      79 | 2021-01-19 02:55:24 |         MASTER-SAAO | (18h 32m 30.98s , -60d 47m 57.6s) | P\  |    10 | 15.0 |        
     114 | 2021-01-19 02:55:53 |         MASTER-SAAO | (18h 32m 25.77s , -60d 48m 47.0s) | P\  |    20 | 15.1 |        
     119 | 2021-01-19 02:55:58 |         MASTER-OAFA | (19h 56m 18.53s , -62d 36m 50.8s) |   C |    20 | 12.3 |        
     158 | 2021-01-19 02:56:33 |         MASTER-SAAO | (18h 32m 25.96s , -60d 47m 45.1s) | P\  |    30 | 15.0 |        
Filter C is a clear (unfiltred) band. 


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