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GCN Circular 23975

Subject
SWIFT GRB190320.05 Global MASTER-Net observations report
Date
2019-03-20T04:57:34Z (6 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
V. Lipunov, E. Gorbovskoy, V.Kornilov, D.Kuvshinov, N.Tyurina, 
P.Balanutsa,
A.Kuznetsov, V.V.Chazov, D. Vlasenko
Lomonosov Moscow State University,
Sternberg Astronomical Institute, Moscow State University

A. Tlatov, V.Senik, A.V. Parhomenko, D. Dormidontov
Kislovodsk Solar Station of the Pulkovo Observatory

K. Ivanov, O. Gres, N.M. Budnev, S. Yazev, O. Chuvalaev, V. Poleshchuk
Irkutsk State University

V. Yurkov, A. Gabovich, Yu. Sergienko
Blagoveschensk Educational State University, Blagoveschensk

R. Podesta, Carlos Lopez and F. Podesta
Observatorio Astronomico Felix Aguilar (OAFA)

Hugo Levato and Carlos Saffe
Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE)

R. Rebolo, M. Serra, N. Lodieu, G. Israelian, L. Suarez-Andres
The Instituto de Astrofisica de Canarias

D. Buckley, S. Potter, A. Kniazev, M. Kotze
South African Astronomical Observatory



MASTER-OAFA robotic telescope  (Global MASTER-Net: 
http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, 
vol. 2010, 30L)  located in Argentina (OAFA observatory of San Juan 
National University) was pointed to the  SWIFT GRB190320.05 (  7h 51m 
14.64s , -45d 53m 24.00s, R=0.05) 82 sec after trigger time at 2019-03-20 
01:15:58 UT, with upper limit up to  18.7 mag. The observations began at 
zenit distance = 17 deg. The sun  altitude  is -31.8 deg.

The galactic latitude b = -60 deg., longitude l = 98 deg.

We obtain a following upper limits.

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

       92 |         MASTER-OAFA |   C |    20 | 16.7 |
      127 |         MASTER-OAFA |   C |    90 | 17.5 |  Coadd
      392 |         MASTER-OAFA |   C |   620 | 18.2 |  Coadd
      156 |         MASTER-OAFA |   C |    30 | 16.9 |
      229 |         MASTER-OAFA |   C |    40 | 17.1 |
      319 |         MASTER-OAFA |   C |    60 | 17.1 |
      409 |         MASTER-OAFA |   C |   240 | 17.8 |  Coadd
      429 |         MASTER-OAFA |   C |    80 | 17.3 |
      559 |         MASTER-OAFA |   C |   100 | 17.4 |
      714 |         MASTER-OAFA |   C |   130 | 17.5 |
      884 |         MASTER-OAFA |   C |   470 | 18.1 |  Coadd
      901 |         MASTER-OAFA |   C |   160 | 17.6 |
     1111 |         MASTER-OAFA |   C |   180 | 17.7 |
     1921 |         MASTER-OAFA |   C |  1800 | 18.6 |  Coadd
     1331 |         MASTER-OAFA |   C |   180 | 17.7 |
     1511 |         MASTER-OAFA |   C |   540 | 18.2 |  Coadd
     1552 |         MASTER-OAFA |   C |   180 | 17.7 |
     1772 |         MASTER-OAFA |   C |   180 | 17.7 |
     1992 |         MASTER-OAFA |   C |   180 | 17.7 |
     2172 |         MASTER-OAFA |   C |   540 | 18.1 |  Coadd
     2212 |         MASTER-OAFA |   C |   180 | 17.6 |
     2433 |         MASTER-OAFA |   C |   180 | 17.6 |
     2652 |         MASTER-OAFA |   C |   180 | 17.6 |
     2832 |         MASTER-OAFA |   C |   540 | 17.6 |  Coadd
     2871 |         MASTER-OAFA |   C |   180 | 17.6 |
     3090 |         MASTER-OAFA |   C |   180 | 17.7 |
     3311 |         MASTER-OAFA |   C |   180 | 17.7 |
     3491 |         MASTER-OAFA |   C |   540 | 18.2 |  Coadd
     4121 |         MASTER-OAFA |   C |  1800 | 18.7 |  Coadd

Filter C is a clear (unfiltred) band.


The observation and reduction will continue.