[vsnet-grb-info 22460] Fermi GRB190515.43 Global MASTER-Net observations report

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  24559
SUBJECT: Fermi GRB190515.43 Global MASTER-Net observations report 
DATE:    19/05/15 23:31:36 GMT
FROM:    Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov at 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-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 GRB190515.43 (trigger No 579608777, 11h 26m 19.99s , -68d 21m 00.00s, R=27.2667) errorbox  44294 sec after trigger time at 2019-05-15 22:44:27 UT, with upper limit up to  17.0 mag. The observations began at zenit distance = 51 deg. The sun  altitude  is -76.7 deg. 

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


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1019208

We obtain a following upper limits.  

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

   44385 | 2019-05-15 22:44:27 |         MASTER-SAAO | ( 13h 51m 20.07s , -52d 44m 44.61s) |   V |   180 | 16.8 |        
   44565 | 2019-05-15 22:44:27 |         MASTER-SAAO | ( 13h 51m 20.07s , -52d 44m 44.61s) |   V |   540 | 17.0 |  Coadd 
   44601 | 2019-05-15 22:48:03 |         MASTER-SAAO | ( 13h 51m 20.43s , -52d 45m 08.77s) |   V |   180 | 16.2 |        
   44812 | 2019-05-15 22:51:34 |         MASTER-SAAO | ( 13h 51m 21.78s , -52d 45m 13.84s) |   V |   180 | 16.4 |        


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